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Showing papers in "Annual Review of Psychology in 2009"


Journal ArticleDOI
TL;DR: This review presents a practical summary of the missing data literature, including a sketch of missing data theory and descriptions of normal-model multiple imputation (MI) and maximum likelihood methods, and strategies for reducing attrition bias.
Abstract: This review presents a practical summary of the missing data literature, including a sketch of missing data theory and descriptions of normalmodel multiple imputation (MI) and maximum likelihood methods. Practical missing data analysis issues are discussed, most notably the inclusion of auxiliary variables for improving power and reducing bias. Solutions are given for missing data challenges such as handling longitudinal, categorical, and clustered data with normal-model MI; including interactions in the missing data model; and handling large numbers of variables. The discussion of attrition and nonignorable missingness emphasizes the need for longitudinal diagnostics and for reducing the uncertainty about the missing data mechanism under attrition. Strategies suggested for reducing attrition bias include using auxiliary variables, collecting follow-up data on a sample of those initially missing, and collecting data on intent to drop out. Suggestions are given for moving forward with research on missing data and attrition.

5,095 citations


Journal ArticleDOI
TL;DR: This review examines recent theoretical and empirical developments in the leadership literature, beginning with topics that are currently receiving attention in terms of research, theory, and practice and concluding with work that has been done on substitutes for leadership, servant leadership, spirituality and leadership, cross-cultural leadership, and e-leadership.
Abstract: This review examines recent theoretical and empirical developments in the leadership literature, beginning with topics that are currently receiving attention in terms of research, theory, and practice. We begin by examining authentic leadership and its development, followed by work that takes a cognitive science approach. We then examine new-genre leadership theories, complexity leadership, and leadership that is shared, collective, or distributed. We examine the role of relationships through our review of leader member exchange and the emerging work on followership. Finally, we examine work that has been done on substitutes for leadership, servant leadership, spirituality and leadership, cross-cultural leadership, and e-leadership. This structure has the benefit of creating a future focus as well as providing an interesting way to examine the development of the field. Each section ends with an identification of issues to be addressed in the future, in addition to the overall integration of the literature we provide at the end of the article.

2,402 citations


Journal ArticleDOI
TL;DR: The scaffolding theory of aging and cognition (STAC) is proposed, suggesting that pervasive increased frontal activation with age is a marker of an adaptive brain that engages in compensatory scaffolding in response to the challenges posed by declining neural structures and function.
Abstract: There are declines with age in speed of processing, working memory, inhibitory function, and long-term memory, as well as decreases in brain structure size and white matter integrity. In the face of these decreases, functional imaging studies have demonstrated, somewhat surprisingly, reliable increases in prefrontal activation. To account for these joint phenomena, we propose the scaffolding theory of aging and cognition (STAC). STAC provides an integrative view of the aging mind, suggesting that pervasive increased frontal activation with age is a marker of an adaptive brain that engages in compensatory scaffolding in response to the challenges posed by declining neural structures and function. Scaffolding is a normal process present across the lifespan that involves use and development of complementary, alternative neural circuits to achieve a particular cognitive goal. Scaffolding is protective of cognitive function in the aging brain, and available evidence suggests that the ability to use this mechanism is strengthened by cognitive engagement, exercise, and low levels of default network engagement.

2,171 citations


Journal ArticleDOI
TL;DR: This review considers a common question in data analysis: What is the most useful way to analyze longitudinal repeated measures data and presents several classic SEMs based on the inclusion of invariant common factors and why these are so important.
Abstract: This review considers a common question in data analysis: What is the most useful way to analyze longitudinal repeated measures data? We discuss some contemporary forms of structural equation models (SEMs) based on the inclusion of latent variables. The specific goals of this review are to clarify basic SEM definitions, consider relations to classical models, focus on testable features of the new models, and provide recent references to more complete presentations. A broader goal is to illustrate why so many researchers are enthusiastic about the SEM approach to data analysis. We first outline some classic problems in longitudinal data analysis, consider definitions of differences and changes, and raise issues about measurement errors. We then present several classic SEMs based on the inclusion of invariant common factors and explain why these are so important. This leads to newer SEMs based on latent change scores, and we explain why these are useful.

1,509 citations


Journal ArticleDOI
TL;DR: A broad survey of the key abilities, processes, and ways in which to relate these to data from cognitive neuroscience is provided.
Abstract: Social cognition in humans is distinguished by psychological processes that allow us to make inferences about what is going on inside other people—their intentions, feelings, and thoughts. Some of these processes likely account for aspects of human social behavior that are unique, such as our culture and civilization. Most schemes divide social information processing into those processes that are relatively automatic and driven by the stimuli, versus those that are more deliberative and controlled, and sensitive to context and strategy. These distinctions are reflected in the neural structures that underlie social cognition, where there is a recent wealth of data primarily from functional neuroimaging. Here I provide a broad survey of the key abilities, processes, and ways in which to relate these to data from cognitive neuroscience.

1,426 citations


Journal ArticleDOI
TL;DR: This review examines recent theory and research concerning the structure, contents, and functions of ideological belief systems and considers the consequences of ideology, especially with respect to attitudes, evaluations, and processes of system justification.
Abstract: Ideology has re-emerged as an important topic of inquiry among social, personality, and political psychologists. In this review, we examine recent theory and research concerning the structure, contents, and functions of ideological belief systems. We begin by defining the construct and placing it in historical and philosophical context. We then examine different perspectives on how many (and what types of) dimensions individuals use to organize their political opinions. We investigate (a) how and to what extent individuals acquire the discursive contents associated with various ideologies, and (b) the social-psychological functions that these ideologies serve for those who adopt them. Our review highlights “elective affinities” between situational and dispositional needs of individuals and groups and the structure and contents of specific ideologies. Finally, we consider the consequences of ideology, especially with respect to attitudes, evaluations, and processes of system justification.

1,399 citations


Journal ArticleDOI
TL;DR: There is a convergence between cognitive models of imitation, constructs derived from social psychology studies on mimicry and empathy, and recent empirical findings from the neurosciences that suggest that experience-based Hebbian learning forms links between sensory processing of the actions of others and motor plans.
Abstract: There is a convergence between cognitive models of imitation, constructs derived from social psychology studies on mimicry and empathy, and recent empirical findings from the neurosciences. The ideomotor framework of human actions assumes a common representational format for action and perception that facilitates imitation. Furthermore, the associative sequence learning model of imitation proposes that experience-based Hebbian learning forms links between sensory processing of the actions of others and motor plans. Social psychology studies have demonstrated that imitation and mimicry are pervasive, automatic, and facilitate empathy. Neuroscience investigations have demonstrated physiological mechanisms of mirroring at single-cell and neural-system levels that support the cognitive and social psychology constructs. Why were these neural mechanisms selected, and what is their adaptive advantage? Neural mirroring solves the “problem of other minds” (how we can access and understand the minds of others) and makes intersubjectivity possible, thus facilitating social behavior.

1,274 citations


Journal ArticleDOI
TL;DR: A multidisciplinary, multilevel, and global perspective is adopted to demonstrate that training and development activities in work organizations can produce important benefits for each of these stakeholders.
Abstract: This article provides a review of the training and development literature since the year 2000. We review the literature focusing on the benefits of training and development for individuals and teams, organizations, and society. We adopt a multidisciplinary, multilevel, and global perspective to demonstrate that training and development activities in work organizations can produce important benefits for each of these stakeholders. We also review the literature on needs assessment and pretraining states, training design and delivery, training evaluation, and transfer of training to identify the conditions under which the benefits of training and development are maximized. Finally, we identify research gaps and offer directions for future research.

1,213 citations


Journal ArticleDOI
TL;DR: The goals of the current review are to provide some definitional, theoretical, and methodological clarity to the complex array of terms and constructs previously employed in the study of social withdrawal, and present a developmental framework describing pathways to and from social withdrawal in childhood.
Abstract: Socially withdrawn children frequently refrain from social activities in the presence of peers. The lack of social interaction in childhood may result from a variety of causes, including social fear and anxiety or a preference for solitude. From early childhood through to adolescence, socially withdrawn children are concurrently and predictively at risk for a wide range of negative adjustment outcomes, including socio-emotional difficulties (e.g., anxiety, low self-esteem, depressive symptoms, and internalizing problems), peer difficulties (e.g., rejection, victimization, poor friendship quality), and school difficulties (e.g., poor-quality teacher-child relationships, academic difficulties, school avoidance). The goals of the current review are to (a) provide some definitional, theoretical, and methodological clarity to the complex array of terms and constructs previously employed in the study of social withdrawal; (b) examine the predictors, correlates, and consequences of child and early-adolescent soc...

1,135 citations


Journal ArticleDOI
TL;DR: Although some intergroup contact and cooperation interventions appear promising, a much more rigorous and broad-ranging empirical assessment of prejudice-reduction strategies is needed to determine what works.
Abstract: This article reviews the observational, laboratory, and field experimental literatures on interventions for reducing prejudice. Our review places special emphasis on assessing the methodological rigor of existing research, calling attention to problems of design and measurement that threaten both internal and external validity. Of the hundreds of studies we examine, a small fraction speak convincingly to the questions of whether, why, and under what conditions a given type of intervention works. We conclude that the causal effects of many widespread prejudice-reduction interventions, such as workplace diversity training and media campaigns, remain unknown. Although some intergroup contact and cooperation interventions appear promising, a much more rigorous and broad-ranging empirical assessment of prejudice-reduction strategies is needed to determine what works.

962 citations


Journal ArticleDOI
TL;DR: The growing evidence that adolescent romantic relationships are significant for individual adjustment and development is characterized, and promising directions for further research are noted.
Abstract: In this article, we review theoretical and empirical advances in research on romantic relationships between age 10 and the early twenties. First, we describe key themes in this area of research. Next, we briefly characterize the most influential theoretical formulations and distinctive methodological issues. We then describe research findings regarding pertinent social and developmental processes. We summarize the extensive findings on relationships with parents and peers as a context for romantic relationships. Finally, we characterize the growing evidence that adolescent romantic relationships are significant for individual adjustment and development, and we note promising directions for further research.

Journal ArticleDOI
TL;DR: Emotion feeling is a phase of neurobiological activity, the key component of emotions and emotion-cognition interactions, and the relation of memes and the mirror neuron system to empathy, sympathy, and cultural influences on the development of socioemotional skills are unresolved issues.
Abstract: Emotion feeling is a phase of neurobiological activity, the key component of emotions and emotion-cognition interactions. Emotion schemas, the most frequently occurring emotion experiences, are dynamic emotion-cognition interactions that may consist of momentary/situational responding or enduring traits of personality that emerge over developmental time. Emotions play a critical role in the evolution of consciousness and the operations of all mental processes. Types of emotion relate differentially to types or levels of consciousness. Unbridled imagination and the ability for sympathetic regulation of empathy may represent both potential gains and losses from the evolution and ontogeny of emotion processes and consciousness. Unresolved issues include psychology's neglect of levels of consciousness that are distinct from access or reflective consciousness and use of the term “unconscious mind” as a dumpster for all mental processes that are considered unreportable. The relation of memes and the mirror neur...

Journal ArticleDOI
TL;DR: This article reviews research on workplace victimization, which is defined as acts of aggression perpetrated by one or more members of an organization that cause psychological, emotional, or physical harm to their intended target.
Abstract: This article reviews research on workplace victimization, which we define as acts of aggression perpetrated by one or more members of an organization that cause psychological, emotional, or physical harm to their intended target. We compare several types of victimizing behaviors that have been introduced into the organizational psychology literature to illustrate differences and similarities among them. We then review studies looking at who is likely to become a victim of aggression. Predictors include personality, demographic, behavioral, structural, and organizational variables. We also review research on coping strategies for victimization, which include problem-focused and emotion-focused strategies. We conclude with a summary of challenges for victimization research. These include addressing the proliferation of constructs and terms into the literature, attempting to clarify inconclusive findings, and using theory to guide the selection of study variables.

Journal ArticleDOI
TL;DR: A full range of psychological processes have been put into play to explain judgment and choice phenomena as mentioned in this paper, including automatic processes, automatic processes have gotten closer attention, and the emotions revolution has put affective processes on a footing equal to cognitive ones.
Abstract: A full range of psychological processes has been put into play to explain judgment and choice phenomena. Complementing work on attention, information integration, and learning, decision research over the past 10 years has also examined the effects of goals, mental representation, and memory processes. In addition to deliberative processes, automatic processes have gotten closer attention, and the emotions revolution has put affective processes on a footing equal to cognitive ones. Psychological process models provide natural predictions about individual differences and lifespan changes and integrate across judgment and decision making ( JDM) phenomena. “Mindful” JDM research leverages our knowledge about psychological processes into causal explanations for important judgment and choice regularities, emphasizing the adaptive use of an abundance of processing alternatives. Such explanations supplement and support existing mathematical descriptions of phenomena such as loss aversion or hyperbolic discounting. Unlike such descriptions, they also provide entry points for interventions designed to help people overcome judgments or choices considered undesirable.

Journal ArticleDOI
TL;DR: The value of a disease-centered approach that "reverse engineers" adverse health outcomes into their specific biological determinants and then identifies psychologically modulated neuroendocrine and immunologic dynamics that modulate those pathological processes at the cellular and molecular levels is emphasized.
Abstract: Research over the past several decades has documented psychosocial influences on the development and progression of several major medical illnesses. The field is now increasingly focused on identifying the biological and behavioral mechanisms underlying these effects. This review takes stock of the knowledge accumulated in the biological arena to date and highlights conceptual and methodological approaches that have proven especially productive. It emphasizes the value of a disease-centered approach that "reverse engineers" adverse health outcomes into their specific biological determinants and then identifies psychologically modulated neuroendocrine and immunologic dynamics that modulate those pathological processes at the cellular and molecular levels.

Journal ArticleDOI
TL;DR: The meaning of cultural competency, positions that have been taken in favor of and against it, and the guidelines for its practice in the mental health field are examined.
Abstract: Cultural competency practices have been widely adopted in the mental health field because of the disparities in the quality of services delivered to ethnic minority groups. In this review, we examine the meaning of cultural competency, positions that have been taken in favor of and against it, and the guidelines for its practice in the mental health field. Empirical research that tests the benefits of cultural competency is discussed.

Journal ArticleDOI
TL;DR: It is found that while overlap exists at all three levels, it varies by comorbidity subtype, and the relations among these three disorders are complex and not fully understood.
Abstract: In this article, we critically review the evidence for overlap among three developmental disorders, namely speech sound disorder (SSD), language impairment (LI), and reading disability (RD), at three levels of analysis: diagnostic, cognitive, and etiological. We find that while overlap exists at all three levels, it varies by comorbidity subtype, and the relations among these three disorders are complex and not fully understood. We evaluate which comorbidity models can be rejected or supported as explanations for why and how these three disorders overlap and what new data are needed to better define their relations.

Journal ArticleDOI
TL;DR: Developments within the embodied cognition framework point toward a new approach for understanding category specificity in terms of the coordinated influences of diverse regions and cognitive systems.
Abstract: One of the most provocative and exciting issues in cognitive science is how neural specificity for semantic categories of common objects arises in the functional architecture of the brain. More than two decades of research on the neuropsychological phenomenon of category-specific semantic deficits has generated detailed claims about the organization and representation of conceptual knowledge. More recently, researchers have sought to test hypotheses developed on the basis of neuropsychological evidence with functional imaging. From those two fields, the empirical generalization emerges that object domain and sensory modality jointly constrain the organization of knowledge in the brain. At the same time, research within the embodied cognition framework has highlighted the need to articulate how information is communicated between the sensory and motor systems, and processes that represent and generalize abstract information. Those developments point toward a new approach for understanding category specificity in terms of the coordinated influences of diverse regions and cognitive systems.

Journal ArticleDOI
TL;DR: Discrete patterns of cognitive deficits occur in AD and several neuropathologically distinct age-associated neurodegenerative disorders and knowledge of these differences helps to clinically distinguish among various causes of dementia and provides useful models for understanding brain-behavior relationships that mediate cognitive abilities affected in various neurodegenersative diseases.
Abstract: Neuropsychological studies show that cognitive deficits associated with Alzheimer's disease (AD) are distinct from age-associated cognitive decline. Quantitative and qualitative differences are apparent across many cognitive domains, but are especially obvious in episodic memory (particularly delayed recall), semantic knowledge, and some aspects of executive functions. The qualitatively distinct pattern of deficits is less salient in very old AD patients than in younger AD patients. Although decline in episodic memory is usually the earliest cognitive change that occurs prior to the development of the AD dementia syndrome, asymmetry in cognitive abilities may also occur in this "preclinical" phase of the disease and predict imminent dementia. Discrete patterns of cognitive deficits occur in AD and several neuropathologically distinct age-associated neurodegenerative disorders. Knowledge of these differences helps to clinically distinguish among various causes of dementia and provides useful models for understanding brain-behavior relationships that mediate cognitive abilities affected in various neurodegenerative diseases.

Journal ArticleDOI
TL;DR: These findings argue against the simple notion that conceptual development is either supplied by the environment or innately specified, and instead demonstrate how the two work together.
Abstract: Much of children's knowledge is derived not from their direct experiences with the environment but rather from the input of others. However, until recently, the focus in studies of concept development was primarily on children's knowledge, with relatively little attention paid to the nature of the input. The past 10 years have seen an important shift in focus. This article reviews this approach, by examining the nature of the input and the nature of the learner, to shed light on early conceptual learning. These findings argue against the simple notion that conceptual development is either supplied by the environment or innately specified, and instead demonstrate how the two work together. The implications for how children reconcile competing belief systems are also discussed.

Journal ArticleDOI
TL;DR: The need for more research focusing on construct validity and prevention issues as well as for methodologies that minimize the likelihood of mono-method bias and that strengthen the ability to make causal inferences is pointed to.
Abstract: Consistent with the relative recency of research on workplace aggression and the considerable media attention given to high-profile incidents, numerous myths about the nature of workplace aggression have emerged. In this review, we examine these myths from an evidence-based perspective, bringing greater clarity to our understanding of the predictors of workplace aggression. We conclude by pointing to the need for more research focusing on construct validity and prevention issues as well as for methodologies that minimize the likelihood of mono-method bias and that strengthen the ability to make causal inferences.

Journal ArticleDOI
TL;DR: Although people everywhere can conceive of each other in terms of personality traits, people in collectivistic cultures appear to rely on traits to a lesser degree when understanding themselves and others, compared with those from individualistic cultures.
Abstract: There appears to be a universal desire to understand individual differences. This common desire exhibits both universal and culturally specific features. Motivations to view oneself positively differ substantially across cultural contexts, as do a number of other variables that covary with this motivation (i.e., approach-avoidance motivations, internalexternal frames of reference, independent-interdependent views of self, incremental-entity theories of abilities, dialectical self-views, and relational mobility). The structure of personality traits, particularly the five-factor model of personality, emerges quite consistently across cultures, with some key variations noted when the structure is drawn from indigenous traits in other languages. The extent to which each of the Big 5 traits is endorsed in each culture varies considerably, although we note some methodological challenges with comparing personality traits across cultures. Finally, although people everywhere can conceive of each other in terms of personality traits, people in collectivistic cultures appear to rely on traits to a lesser degree when understanding themselves and others, compared with those from individualistic cultures.

Journal ArticleDOI
TL;DR: The history of the use of field experiments, some of the reasons for their current renaissance, and the particular technical developments that have made this renaissance possible across four kinds of widely used experimental and quasi-experimental designs are reviewed.
Abstract: Most experiments are done in laboratories. However, there is also a theory and practice of field experimentation. It has had its successes and failures over the past four decades but is now increasingly used for answering causal questions. This is true for both randomized and—perhaps more surprisingly—nonrandomized experiments. In this article, we review the history of the use of field experiments, discuss some of the reasons for their current renaissance, and focus the bulk of the article on the particular technical developments that have made this renaissance possible across four kinds of widely used experimental and quasi-experimental designs—randomized experiments, regression discontinuity designs in which those units above a cutoff get one treatment and those below get another, short interrupted time series, and nonrandomized experiments using a nonequivalent comparison group. We focus this review on some of the key technical developments addressing problems that previously stymied accurate effect es...

Journal ArticleDOI
TL;DR: An overview of co-occurring disorders among adolescents is presented, general considerations for co-Occurring disorders treatment are highlighted, selected treatment models and outcomes are reviewed, and recommendations and best practice strategies are discussed.
Abstract: Co-occurring disorders present serious challenges to traditional mental health and substance abuse treatment systems. Among adolescents in need of behavioral health services, co-occurring disorders are highly prevalent and difficult to treat. Without effective intervention, youth with co-occurring disorders are at increased risk of serious medical and legal problems, incarceration, suicide, school difficulties and dropout, unemployment, and poor interpersonal relationships. In general, current service systems are inadequately prepared to meet this need due to a variety of clinical, administrative, financial, and policy barriers. This article presents an overview of co-occurring disorders among adolescents, highlights general considerations for co-occurring disorders treatment, reviews selected treatment models and outcomes, and discusses recommendations and best practice strategies.

Journal ArticleDOI
TL;DR: An ecological perspective on recent developments in community psychology is adopted, beginning with philosophy of science and progressing through a series of substantive research and intervention domains that characterize current work.
Abstract: Community psychology has historically focused on understanding individual behavior in sociocultural context, assessing high-impact contexts, and working in and with communities to improve their resources and influence over their futures. This review adopts an ecological perspective on recent developments in the field, beginning with philosophy of science and progressing through a series of substantive research and intervention domains that characterize current work. These domains include research on the ecology of lives, the assessment of social settings and their impact on behavior, culture and diversity as expressed in the community research process, and community intervention.

Journal ArticleDOI
TL;DR: It is concluded that animals are excellent ethologists, but on the whole, poor psychologists, and those studies that present a good case for mental attribution all possess high ecological validity, including studies on food competition by chimpanzees and cache-protection strategies by corvids.
Abstract: Theory of mind is said to be uniquely human. Is this statement justified? Thirty years of research on a variety of species has produced differences in opinion, from unequivocal positive evidence to no evidence at all for mental attribution in animals. Our review concludes that animals are excellent ethologists, but on the whole, poor psychologists. Those studies that we believe present a good case for mental attribution all possess high ecological validity, including studies on food competition by chimpanzees and cache-protection strategies by corvids. Even though the current focus of research on prediction rather than explanation may be misplaced, we believe the field is now in a strong position to discover what animals really know about their fellow beings, be it based on simple associations, behavior reading, mind reading, or something else.

Journal Article
TL;DR: In this article, two complementary analytical approaches, Latent Moderated Structural (LMS) Equations and Local Structural Equation Models (LSEM), are presented and discussed, which allow treating contextual factors as continuous variables and are appropriate to detect nonlinear relations.
Abstract: Sample-related invariance is an important topic in psychometric research. The generalizability of findings in a broad range of application samples requires equivalence of interpretations based on the measurement outcomes across respective samples. Contextual factors like gender, age, culture, ethnicity, socio-economical status etc. may affect the meaning and interpretation of psychological measures. Sample-related invariance is frequently investigated using Multiple-Group Mean and Covariance Structure (MGMCS) analyses. This method builds upon natural or artifical categories of contextual variables. Many contextual variables are continuous variables and their categori zation is associated with an information loss and potentially overly simplistic data analyses. We present and discuss two complementary analytical approaches – Latent Moderated Structural (LMS) Equations and Local Structural Equation Models (LSEM). Both approaches allow treating contextual factors as continuous variables and are appropriate to detect non-linear relations. The use of these methods is exemplified based on real data. We investigated measurement equivalence of a battery of cognitive tests across age (N = 448; age range 18-82 years). Based on a higher-order factor model of cognitive abilities factorial equivalence could be established – contradicting the agededifferentiation hypothesis. Advantages and disadvantages of MGMCS, LMS, and LSEM and further implementations beyond aging-research are discussed.

Journal ArticleDOI
TL;DR: Key areas for future work include bridging the fields of adolescent development and treatment design, matching treatments to developmental trajectories of smoking behavior, better understanding treatment processes and treatment moderators, and building demand for evidence-based cessation treatments.
Abstract: Cigarette smoking is the leading cause of premature morbidity and mortality in the United States. The majority of children smoke their first cigarette in early adolescence, and many older teens have well-established dependence on nicotine. Efforts to promote and support smoking cessation among these youth smokers are critical. The available experimental studies of youth cessation interventions find that behavioral interventions increase the chances of youth smokers achieving successful cessation. Currently there is insufficient evidence for the effectiveness of pharmacological treatments with youth smokers. Many innovative studies have been compromised by challenges in recruiting sufficient numbers of youth, obtaining approval for waivers of parental consent, and high attrition in longitudinal studies. Key areas for future work include bridging the fields of adolescent development and treatment design, matching treatments to developmental trajectories of smoking behavior, better understanding treatment pr...

Journal Article
TL;DR: Ganzach et al. as mentioned in this paper found that if at least one parent's education level is high, the educational expectations of the child will also be high, even if the level of education of the other parent is quite low.
Abstract: Numerous theories within the social and behavioral sci-ences hypothesize interaction, quadratic effects, or both between multiple independent and dependent variables (Ajzen, 1987; Cronbach & Snow, 1977; Karasek, 1979; Lusch & Brown, 1996; Snyder & Tanke, 1976). For exam-ple, Ganzach (1997) studies the relationship between par-ents’ educational level and child’s educational expectations. He hypothesizes and finds a simultaneous interactive and quadratic relationship: If at least one parent’s education lev-el is high, the educational expectations of the child will also be high, even if the level of education of the other parent is quite low. In terms of the statistical model, this compensa-tory hypothesis is represented by two positive quadratic ef-fects (for each parent’s educational level) and one negative interaction effect. Within the measured variable framework, such hypotheses can be tested by specifying a multiple re-gression model (see Aiken & West, 1991):

Journal Article
TL;DR: Kajtna et al. as mentioned in this paper examined the way Slovene coaches work with their athletes and concluded that the quality of a coach-athlete relationship depends on the contribution of both sides.
Abstract: 47 The article is based on the common idea in sport psychology that the coach, besides his/her athletes, is the key figure in sports. Our goal was to test this idea in Slovene sport and examine the way Slovene coaches work with their athletes. Systematic study should result in scientific insight on the role and work of coaches in sport, and provide relevant information about importance of coaches in the development of sport. Authors of numerous books single out a coach as a crucial person in athletes’ sports career progression (Tušak & Tušak, 2001; Krevsel, 2001; Chelladurai, 1990; Martens, 1990; Gummerson, 1992; Sabock, 1985). Solomon (2001) found that the coach’s estimate of athlete’s self-confidence is the best predictor of athlete’s performance in competitions. Dick (1997) defines coaching as “more an art than a science”. The process of training consists of two components: the first, skill improvement, regards knowledge transfer, and the second is the development of a relationship between the coach and athletes which influence athletes’ development of the self-efficacy and can facilitate their psychological growth (Jowett & Cockerill, 2003). Self-efficacy depends primarily on how much we believe we have been successful in various activities within a particular field (Bandura, 1977). Poczwardowski, Barott and Henschen (2002) regard the coach-athlete relationship being responsible for the entire sports experience, quality of training, and competition performance. Quality of coach-athlete relationship depends on the contribution of both sides. The relationship will be effective if both sides are satisfied. Research studies have demonstrated that, on the coach side, various dispositional and situational factors are important, as well as certain acquired skills. These factors are: coach’s personality traits, emotional control, expertise/competency, innovativeness, communication skills, leadership style, motivational structure, gender and the like (Reimer & Toon, 2001, Serpa, 2001; Tušak & Tušak, 2001). On the athlete’s side, there are also several interrelated factors that interactively influence coach-athlete relationship quality. Studies have already demonstrated that the most important factors for athletes are: their personality traits, chosen sporting discipline, age, gender, and competition quality level (Taylor & Wilson, 2005). Kajtna, Tanja, University of Ljubljana, Faculty of Sports, Slovenia;