Patterns of mean-level change in personality traits across the life course: a meta-analysis of longitudinal studies.
TL;DR: The present study used meta-analytic techniques to determine the patterns of mean-level change in personality traits across the life course and showed that people increase in measures of social dominance, conscientiousness, and emotional stability in young adulthood and decrease in both of these domains in old age.
Abstract: The present study used meta-analytic techniques (number of samples = 92) to determine the patterns of mean-level change in personality traits across the life course. Results showed that people increase in measures of social dominance (a facet of extraversion), conscientiousness, and emotional stability, especially in young adulthood (age 20 to 40). In contrast, people increase on measures of social vitality (a 2nd facet of extraversion) and openness in adolescence but then decrease in both of these domains in old age. Agreeableness changed only in old age. Of the 6 trait categories, 4 demonstrated significant change in middle and old age. Gender and attrition had minimal effects on change, whereas longer studies and studies based on younger cohorts showed greater change.
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TL;DR: The metafor package provides functions for conducting meta-analyses in R and includes functions for fitting the meta-analytic fixed- and random-effects models and allows for the inclusion of moderators variables (study-level covariates) in these models.
Abstract: The metafor package provides functions for conducting meta-analyses in R. The package includes functions for fitting the meta-analytic fixed- and random-effects models and allows for the inclusion of moderators variables (study-level covariates) in these models. Meta-regression analyses with continuous and categorical moderators can be conducted in this way. Functions for the Mantel-Haenszel and Peto's one-step method for meta-analyses of 2 x 2 table data are also available. Finally, the package provides various plot functions (for example, for forest, funnel, and radial plots) and functions for assessing the model fit, for obtaining case diagnostics, and for tests of publication bias.
11,237 citations
Cites methods from "Patterns of mean-level change in pe..."
...The metafor package grew out of a function called mima() (Viechtbauer 2006), which was written by the author several years ago and which has since been successfully applied in several meta-analyses (e.g., Krasopoulos et al. 2008; Petrin et al. 2008; Roberts et al. 2006)....
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Book•
19 Nov 2008TL;DR: This meta-analyses presents a meta-analysis of the contributions from the home, the school, and the curricula to create a picture of visible teaching and visible learning in the post-modern world.
Abstract: Preface Chapter 1 The challenge Chapter 2 The nature of the evidence: A synthesis of meta-analyses Chapter 3 The argument: Visible teaching and visible learning Chapter 4: The contributions from the student Chapter 5 The contributions from the home Chapter 6 The contributions from the school Chapter 7 The contributions from the teacher Chapter 8 The contributions from the curricula Chapter 9 The contributions from teaching approaches - I Chapter 10 The contributions from teaching approaches - II Chapter 11: Bringing it all together Appendix A: The 800 meta-analyses Appendix B: The meta-analyses by rank order References
6,776 citations
TL;DR: Following a cohort of 1,000 children from birth to the age of 32 y, it is shown that childhood self-control predicts physical health, substance dependence, personal finances, and criminal offending outcomes, following a gradient of self- control.
Abstract: Policy-makers are considering large-scale programs aimed at self-control to improve citizens’ health and wealth and reduce crime. Experimental and economic studies suggest such programs could reap benefits. Yet, is self-control important for the health, wealth, and public safety of the population? Following a cohort of 1,000 children from birth to the age of 32 y, we show that childhood self-control predicts physical health, substance dependence, personal finances, and criminal offending outcomes, following a gradient of self-control. Effects of children's self-control could be disentangled from their intelligence and social class as well as from mistakes they made as adolescents. In another cohort of 500 sibling-pairs, the sibling with lower self-control had poorer outcomes, despite shared family background. Interventions addressing self-control might reduce a panoply of societal costs, save taxpayers money, and promote prosperity.
3,622 citations
Cites background from "Patterns of mean-level change in pe..."
...It has been shown that self-control can change (31)....
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TL;DR: Brief self-report and informant-report versions of the Grit Scale are introduced, which measures trait-level perseverance and passion for long-term goals, and evidence is presented for its internal consistency, test–retest stability, consensual validity with informant- report versions, and predictive validity.
Abstract: In this article, we introduce brief self-report and informant-report versions of the Grit Scale, which measures trait-level perseverance and passion for long-term goals. The Short Grit Scale (Grit-S) retains the 2-factor structure of the original Grit Scale (Duckworth, Peterson, Matthews, & Kelly, 2007) with 4 fewer items and improved psychometric properties. We present evidence for the Grit-S's internal consistency, test-retest stability, consensual validity with informant-report versions, and predictive validity. Among adults, the Grit-S was associated with educational attainment and fewer career changes. Among adolescents, the Grit-S longitudinally predicted GPA and, inversely, hours watching television. Among cadets at the United States Military Academy, West Point, the Grit-S predicted retention. Among Scripps National Spelling Bee competitors, the Grit-S predicted final round attained, a relationship mediated by lifetime spelling practice.
2,102 citations
Cites result from "Patterns of mean-level change in pe..."
...This account is consistent with evidence that interests stabilize over time ( Swanson, 1999 ) and also that traits associated with psychological maturity increase over the life course ( Roberts, Walton, & Viechtbauer, 2006 )....
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References
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TL;DR: A convenient, although not comprehensive, presentation of required sample sizes is providedHere the sample sizes necessary for .80 power to detect effects at these levels are tabled for eight standard statistical tests.
Abstract: One possible reason for the continued neglect of statistical power analysis in research in the behavioral sciences is the inaccessibility of or difficulty with the standard material. A convenient, although not comprehensive, presentation of required sample sizes is provided here. Effect-size indexes and conventional values for these are given for operationally defined small, medium, and large effects. The sample sizes necessary for .80 power to detect effects at these levels are tabled for eight standard statistical tests: (a) the difference between independent means, (b) the significance of a product-moment correlation, (c) the difference between independent rs, (d) the sign test, (e) the difference between independent proportions, (f) chi-square tests for goodness of fit and contingency tables, (g) one-way analysis of variance, and (h) the significance of a multiple or multiple partial correlation.
38,291 citations
"Patterns of mean-level change in pe..." refers background in this paper
...Whole populations changing one full standard deviation constitutes what is typically considered a large effect in psychology (Cohen, 1992)....
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Book•
03 Mar 1992TL;DR: The Logic of Hierarchical Linear Models (LMLM) as discussed by the authors is a general framework for estimating and hypothesis testing for hierarchical linear models, and it has been used in many applications.
Abstract: Introduction The Logic of Hierarchical Linear Models Principles of Estimation and Hypothesis Testing for Hierarchical Linear Models An Illustration Applications in Organizational Research Applications in the Study of Individual Change Applications in Meta-Analysis and Other Cases Where Level-1 Variances are Known Three-Level Models Assessing the Adequacy of Hierarchical Models Technical Appendix
23,126 citations
TL;DR: This chapter discusses Hierarchical Linear Models in Applications, Applications in Organizational Research, and Applications in the Study of Individual Change Applications in Meta-Analysis and Other Cases Where Level-1 Variances are Known.
19,282 citations
TL;DR: Theories of the self from both psychology and anthropology are integrated to define in detail the difference between a construal of self as independent and a construpal of the Self as interdependent as discussed by the authors, and these divergent construals should have specific consequences for cognition, emotion, and motivation.
Abstract: People in different cultures have strikingly different construals of the self, of others, and of the interdependence of the 2. These construals can influence, and in many cases determine, the very nature of individual experience, including cognition, emotion, and motivation. Many Asian cultures have distinct conceptions of individuality that insist on the fundamental relatedness of individuals to each other. The emphasis is on attending to others, fitting in, and harmonious interdependence with them. American culture neither assumes nor values such an overt connectedness among individuals. In contrast, individuals seek to maintain their independence from others by attending to the self and by discovering and expressing their unique inner attributes. As proposed herein, these construals are even more powerful than previously imagined. Theories of the self from both psychology and anthropology are integrated to define in detail the difference between a construal of the self as independent and a construal of the self as interdependent. Each of these divergent construals should have a set of specific consequences for cognition, emotion, and motivation; these consequences are proposed and relevant empirical literature is reviewed. Focusing on differences in self-construals enables apparently inconsistent empirical findings to be reconciled, and raises questions about what have been thought to be culture-free aspects of cognition, emotion, and motivation.
18,178 citations
Book•
01 Jan 1950
TL;DR: Erikson's Childhood and Society as discussed by the authors deals with the relationship between childhood training and cultural accomplishment, analyzing the infantile and the mature, the modern and the archaic elements in human motivation.
Abstract: The original and vastly influential ideas of Erik H. Erikson underlie much of our understanding of human development. His insights into the interdependence of the individuals' growth and historical change, his now-famous concepts of identity, growth, and the life cycle, have changed the way we perceive ourselves and society. Widely read and cited, his works have won numerous awards including the Pulitzer Prize and the National Book Award. Combining the insights of clinical psychoanalysis with a new approach to cultural anthropology, Childhood and Society deals with the relationships between childhood training and cultural accomplishment, analyzing the infantile and the mature, the modern and the archaic elements in human motivation. It was hailed upon its first publication as "a rare and living combination of European and American thought in the human sciences" (Margaret Mead, The American Scholar). Translated into numerous foreign languages, it has gone on to become a classic in the study of the social significance of childhood.
13,662 citations