Why g matters: The complexity of everyday life
TL;DR: In this paper, the authors provide evidence that intelligence has pervasive utility in work settings because it is essentially the ability to deal with cognitive complexity, in particular, with complex information processing, and the more complex a work task, the greater the advantages that higher g confers in performing it well.
About: This article is published in Intelligence.The article was published on 1997-01-01 and is currently open access. It has received 1300 citations till now. The article focuses on the topics: Everyday life & Cognitive complexity.
Summary (1 min read)
Jump to: [Why g Matters: The Complexity of Everyday Life] – [WHAT DOES “IMPORTANT” MEAN?] – [INFLUENCE OF INTELLIGENCE ON OVERALL LIFE OUTCOMES] and [THE FUTURE]
Why g Matters: The Complexity of Everyday Life
- This article provides evidence that g has pervasive utility in work settings because it is essentially the ability to deal with cognitive complexity, in particular, with complex information processing.
- Few claims in the social sciences are backed by such massive evidence but remain so hotly contested in public discourse.
- Besides demonstrating that g is important in practical affairs, I seek to demonstrate why intelligence has such surprisingly pervasive importance in the lives of individuals.
- I then use both the employment and literacy data to sketch a portrait of life’s challenges and opportunities at different levels of intelligence.
WHAT DOES “IMPORTANT” MEAN?
- The nature of the job and its context seem to determine whether g has any direct effect on task proficiency, net of job knowlege.
- As is well known in psychometrics (see also Gordon, 1997), the fact that an individual passes or fails any single test item says little about that person’s general intelligence level.
INFLUENCE OF INTELLIGENCE ON OVERALL LIFE OUTCOMES
- The effects of intelligence-like other psychological traits-are probabilistic, not deterministic.
- White adults in this range marry, work, and have children (Hermstein & Murray, 1994), but, as Table 10 shows, they are nonetheless at great risk of living in poverty (30%), bearing children out of wedlock (32%), and becoming chronic welfare dependents (31%).
- At this IQ level, fewer than half the high school graduates and none of the dropouts meet the military’s minimum AFQT enlistment standards.
- Most occupations are within reach cognitively, because these individuals learn complex material fairly easily and independently.
- Such as divorce, illness, and occasional unemployment, they rarely become trapped in poverty or social pathology.
THE FUTURE
- Complexity enriches social and cultural life, but it also risks leaving some individuals behind.
- Society has become more complex-and g loaded-as the authors have entered the information age and postindustrial economy.
- Accordingly, organizations are “flatter” (have fewer hierarchical levels), and increasing numbers of jobs require high-level cognitive and interpersonal skills (Camevale, 1991; Cascio, 1995; Hunt, 1995; Secretary’s Commission on Achieving Necessary Skills, 1991).
- There is evidence that increasing proportions of individuals with below-average IQs are having trouble adapting to their increasingly complex modern life (Granat & Granat, 1978) and that social inequality along IQ lines is increasing (Herrnstein & Murray, 1994).
- As the military experience also illustrates, however, what is good pedagogy for the low-aptitude learner may be inappropriate for the high-aptitude person.
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TL;DR: In this article, an intervention simultaneously operating on fluid reasoning (FR), visuospatial, narrative, and motor abilities could boost these competencies in a group of Italian preschoolers (N = 108, 54 males 54 females, Agemean Â= 4.04).
Abstract: Cognitive abilities are essential to children's overall growth; thus, the implementation of early and effective training interventions is a major challenge for developmental psychologists and teachers. This study explores whether an intervention simultaneously operating on fluid reasoning (FR), visuospatial, narrative, and motor abilities could boost these competencies in a group of Italian preschoolers (N = 108, 54 males 54 females, Agemean = 4.04). FR and visuospatial abilities showed training-related increases at the end of the training and 1-year follow-up (moderate effect size). Interestingly, positive correlations with working memory and mathematical abilities were found. Beyond their scientific relevance, the short- and long-term effects provide fundamental indications for designing and implementing educational programs dedicated to preschoolers.
5 citations
01 Jan 2011
TL;DR: In this paper, a neuropsychologically based performance model was used for representing WISC-IV subtest reliability and the manner in which individuals use their brains when they engage tasks.
Abstract: Subtest-level interpretation of intelligence tests is necessary for understanding the relationship between cognitive deficiencies and academic problems and for designing interventions based on assessment results. However, the practice of subtest interpretation continues to be discouraged by those who claim that subtests have poor reliability and thus minimal interpretative power. This perception of subtest instability may be the result of misguided conceptions of reliability and not actual properties of subtests. With this in mind, the present study sought to determine the extent to which a neuropsychologically based performance model fit WISC-IV subtest test-retest data and offered an alternate means of understanding and interpreting the concept of subtest reliability. Higher rates of score progression versus regression were demonstrated for all subtests regardless of whether or not time 1 scores were above or below the mean. Rates of score increases from time 1 to time 2 varied based on the neuropsychological basis of the task being assessed. Results suggest that a neuropsychologically based performance model is superior to a traditional psychometric model for representing WISC-IV subtest reliability and the manner in which individuals use their brains when they engage tasks.
5 citations
Cites background from "Why g matters: The complexity of ev..."
...they cite studies documenting the relationship between g and overall life success, including educational and occupational attainment, marital satisfaction, and emotional health (Buckholdt, 2001; Gottfredson, 1997; Kranzler, 2001)....
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...As evidence for this latter claim, they cite studies documenting the relationship between g and overall life success, including educational and occupational attainment, marital satisfaction, and emotional health (Buckholdt, 2001; Gottfredson, 1997; Kranzler, 2001)....
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...In Gottfredson’s (1998) words: Because every mental test is “contaminated” by the effects of specific mental skills, no single test measures only g....
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...26) As thus intimated by Gottfredson (1998), the interpretation of FSIQ requires adherence to the assumption that individual performance across the multiple subtests and indexes from which it is derived is relatively uniform....
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...G is conceptualized as a trait that is stable over time and not easily modified by educational or environmental interventions (Gottfredson, 1997)....
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TL;DR: It is argued that the availability and easy access to alcohol drinking opportunities likely make people irrational and tempts them to drink frequently and authorities might consider revising current policies regarding alcohol availability and accessibility to limit alcohol consumption.
Abstract: Alcohol consumption is an important public health issue in Japan due to its association with numerous side effects. Recent studies find that financial literacy helps people abstain from risky health behaviors such as smoking, lack of exercise, and gambling. This study investigates how financial literacy, as a rational decision-making instrument, is associated with alcohol consumption behavior in Japan. Using data from the Preference Parameter Study (PPS) of Osaka University, we categorize respondents into daily drinkers and non-daily drinkers. We find that financial literacy is not significantly associated with alcohol consumption among Japanese people. We argue that the prevailing social belief that alcohol consumption is not entirely negative from the health perspective and can be beneficial for socialization to some extent overrides people’s rationality and plays a significant role in alcohol consumption decisions. However, our study provides evidence that respondents who are males, middle-aged, have children, have higher household income, have smoking habits, and place more importance on the future are more likely to be daily drinkers. We argue that the availability and easy access to alcohol drinking opportunities likely make people irrational and tempts them to drink frequently. Thus, authorities might consider revising current policies regarding alcohol availability and accessibility to limit alcohol consumption.
5 citations
TL;DR: It is suggested that intelligence, or g/G, is reflected in a biological capacity that evolved from object manipulation in animals, into mental manipulation in humans, in response to various environmental conditions.
Abstract: Many attempts have been made to classify and evaluate the nature of intelligence in humans and other species (referred to as the 'g' factor in the former and the G factor in the latter). The search for this essential structure of mental life has generated various models and definitions, yet open questions remain. Specifically, referring to intelligence by overemphasizing the anthropocentric terminology and its ethnocentric overlay is insufficient to account for individual differences and limits its generalizability in biological and cultural contexts. The present work is an attempt to adopt a different perspective on the 'g/G' factor and its measurement. We suggest that intelligence, or g/G, is reflected in a biological capacity that evolved from object manipulation in animals, into mental manipulation in humans, in response to various environmental conditions.
5 citations
Additional excerpts
...(Gottfredson 1997, p 13)....
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TL;DR: In this paper , eye movements were used to predict whether a participant will succeed in solving a Culture-Fair IQ Test (CFT 20-R) to assess fluid intelligence and showed that the information related to eye movements complemented the information provided by socio-demographic data when it comes to success prediction.
Abstract: Understanding the main factors contributing to individual differences in fluid intelligence is one of the main challenges of psychology. A vast body of research has evolved from the theoretical framework put forward by Cattell, who developed the Culture-Fair IQ Test (CFT 20-R) to assess fluid intelligence. In this work, we extend and complement the current state of research by analysing the differential and combined relationship between eye-movement patterns and socio-demographic information and the ability of a participant to correctly solve a CFT item. Our work shows that a participant’s eye movements while solving a CFT item contain discriminative information and can be used to predict whether the participant will succeed in solving the test item. Moreover, the information related to eye movements complements the information provided by socio-demographic data when it comes to success prediction. In combination, both types of information yield a significantly higher predictive performance than each information type individually. To better understand the contributions of features related to eye movements and socio-demographic information to predict a participant’s success in solving a CFT item, we employ state-of-the-art explainability techniques and show that, along with socio-demographic variables, eye-movement data. Especially the number of saccades and the mean pupil diameter, significantly increase the discriminating power. The eye-movement features are likely indicative of processing efficiency and invested mental effort. Beyond the specific contribution to research on how eye movements can serve as a means to uncover mechanisms underlying cognitive processes, the findings presented in this work pave the way for further in-depth investigations of factors predicting individual differences in fluid intelligence.
5 citations
References
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Book•
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