Why g matters: The complexity of everyday life
Summary (1 min read)
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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Citations
28 citations
Cites background from "Why g matters: The complexity of ev..."
...The consistency and intensity of the attention devoted to intelligence is partly due to its power to predict many important practical outcomes [3,4]....
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28 citations
Cites background from "Why g matters: The complexity of ev..."
...Two thirds of a job's incumbents typically fall within a range of 15 to 17 IQ points, or about one standard deviation in IQ; 95% generally fall within a range of 30 to 34 IQ points (Gottfredson, 1997b, p. 90)....
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...…conclusions is now truly massive (e.g., Brody, 1992; Jensen, 1998; Neisser et al., 1996; Wigdor & Garner, 1982a, 1982b; see also the bibliography in Gottfredson, 1997a), so many skeptics have switched from finding fault with the supporting evidence to mostly ignoring it and pointing instead to…...
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...Evidence suggests, in fact, that they measure g, or phenotypic intelligence (Gottfredson, 1997b)....
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28 citations
Cites background from "Why g matters: The complexity of ev..."
...…Quotient (IQ) tests measure” to the proposal of a latent variable reflecting a very general capability that, among other things, involves the ability to reason, plan, solve problems, think abstractly, understand complex ideas, learn quickly, and learn from experience (Gottfredson, 1997)....
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28 citations
Cites methods from "Why g matters: The complexity of ev..."
...For years IQ was used as the main predictor of success and with some accuracy (Gottfredson, 1997; Hartigan & Wigdor, 1989)....
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...For years IQ was used as the main predictor of success and with some accuracy (Gottfredson, 1997; Hartigan & Wigdor, 1989)....
[...]
28 citations
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