Can You Ever Be Too Smart for Your Own Good? Comparing Linear and Nonlinear Effects of Cognitive Ability on Life Outcomes

Abstract

Despite a long-standing expert consensus about the importance of cognitive ability for life outcomes, contrary views continue to proliferate in scholarly and popular literature. This divergence of beliefs presents an obstacle for evidence-based policymaking and decision-making in a variety of settings. One commonly held idea is that greater cognitive ability does not matter or is actually harmful beyond a certain point (sometimes stated as > 100 or 120 IQ points). We empirically tested these notions using data from four longitudinal, representative cohort studies comprising 48,558 participants in the United States and United Kingdom from 1957 to the present. We found that ability measured in youth has a positive association with most occupational, educational, health, and social outcomes later in life. Most effects were characterized by a moderate to strong linear trend or a practically null effect (mean R² range = .002–.256). Nearly all nonlinear effects were practically insignificant in magnitude (mean incremental R² = .001) or were not replicated across cohorts or survey waves. We found no support for any downside to higher ability and no evidence for a threshold beyond which greater scores cease to be beneficial. Thus, greater cognitive ability is generally advantageous—and virtually never detrimental.

Keywords

individual differences cognition cognitive ability intelligence IQ curvilinear longitudinal study

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References

Ackerman

P. L.

Heggestad

E. D.

(1997). Intelligence, personality, and interests: Evidence for overlapping traits. Psychological Bulletin, 121, 219–245.

Aguinis

Culpepper

S. A.

Pierce

C. A.

(2016). Differential prediction generalization in college admissions testing. Journal of Educational Psychology, 108, 1045–1059.

Allemand

Job

Mroczek

D. K.

(2018). Self-control development in adolescence predicts love and work in adulthood. Journal of Personality and Social Psychology, 117, 621–634.

Alloway

(2014, January 23). The end of IQ (and the dawn of working memory). Huffington Post. https://www.huffpost.com/entry/iq-tests_b_4168628

Alvesson

Spicer

(2016). The stupidity paradox: The power and pitfalls of functional stupidity at work. Profile Books

Anderson

N. C.

(2020, May 21). University of California takes huge step towards dropping SAT and ACT from admissions. The Washington Post. https://www.washingtonpost.com/education/2020/05/21/sats-university-california-system/

Andreasen

N. C.

(2014, July/August). Secrets of the creative brain. The Atlantic. https://www.theatlantic.com/magazine/archive/2014/07/secrets-of-the-creative-brain/372299

Antonakis

House

R. J.

Simonton

D. K.

(2017). Can super smart leaders suffer from too much of a good thing? The curvilinear effect of intelligence on perceived leadership behavior. Journal of Applied Psychology, 102, 1003–1021.

Arneson

J. J.

Sackett

P. R.

Beatty

A. S.

(2011). Ability-performance relationships in education and employment settings: Critical tests of the more-is-better and the good-enough hypotheses. Psychological Science, 22, 1336–1342.

10.

Aronofsky

(Director). (1998). Pi [Film]. Artisan Entertainment.

11.

Arvan

M. L.

Pindek

Andel

S. A.

Spector

P. E.

(2019). Too good for your job? Disentangling the relationships between objective overqualification, perceived overqualification, and job dissatisfaction. Journal of Vocational Behavior, 115, Article 103323. https://doi.org/10.1016/j.jvb.2019.103323

12.

Associated Press. (1999, September 9). Metro news briefs: Connecticut; Judge rules that police can bar high I.Q. scores. The New York Times. https://www.nytimes.com/1999/09/09/nyregion/metro-news-briefs-connecticut-judge-rules-that-police-can-bar-high-iq-scores.html

13.

Banks

G. C.

Pollack

J. M.

Bochantin

J. E.

Kirkman

B. L.

Whelpley

C. E.

O’Boyle

E. H.

(2016). Management’s science-practice gap: A grand challenge for all stakeholders. Academy of Management Journal, 59, 2205–2231.

14.

Batty

G. D.

Deary

I. J.

Schoon

Gale

C. R.

(2007). Childhood mental ability in relation to food intake and physical activity in adulthood: The 1970 British Cohort Study. Pediatrics, 119, e38–e45.

15.

Beier

M. E.

Oswald

F. L.

(2012). Is cognitive ability a liability? A critique and future research agenda on skilled performance. Journal of Experimental Psychology: Applied, 18, 331–345.

16.

Belasco

A. S.

Rosinger

K. O.

Hearn

J. C.

(2015). The test-optional movement at America’s selective liberal arts colleges: A boon for equity or something else? Educational Evaluation and Policy Analysis, 37, 206–223.

17.

Berg

Judge

Lassally

Rotenberg

(Producers). (2014). Silicon valley [TV series]. HBO.

18.

Berry

C. M.

Clark

M. A.

McClure

T. K.

(2011). Racial/ethnic differences in the criterion-related validity of cognitive ability tests: A qualitative and quantitative review. Journal of Applied Psychology, 96, 881–906.

19.

Berry

C. M.

Gruys

M. L.

Sackett

P. M.

(2006). Educational attainment as a proxy for cognitive ability in selection: Effects on levels of cognitive ability and adverse impact. Journal of Applied Psychology, 91, 696–705.

20.

Bertua

Anderson

Salgado

J. F.

(2005). The predictive validity of cognitive ability tests: A UK meta-analysis. Journal of Occupational and Organizational Psychology, 78, 387–409.

21.

Blum

Holling

(2017). Spearman’s law of diminishing returns: A meta-analysis. Intelligence, 65, 60–66.

22.

Boehm

V. R.

(1980). Research in the “real world”—A conceptual model. Personnel Psychology, 33, 495–503.

23.

Briner

R. B.

Rousseau

D. M.

(2011). Evidence-based I-O psychology: Not there yet. Industrial and Organizational Psychology, 4, 3–22.

24.

Brooks

(2011). The social animal. Random House.

25.

Bureau of Labor Statistics. (2019a). National Longitudinal Survey of Youth, 1979 cohort (rounds 1–27). U.S. Department of Labor. https://www.bls.gov/nls/nlsy79.htm

26.

Bureau of Labor Statistics. (2019b). National Longitudinal Survey of Youth, 1997 cohort (rounds 1–18). U.S. Department of Labor. https://www.bls.gov/nls/nlsy97htm

27.

Caprar

D. V.

Rynes

S. L.

Bartunek

J. M.

(2016). It’s personal: An exploration of students’ (non) acceptance of management research. Academy of Management Learning & Education, 15, 207–231.

28.

Carlson

(2010). World’s best chess players deny brilliance. The Atlantic. https://www.theatlantic.com/culture/archive/2010/03/world-s-best-chess-players-deny-brilliance/341160/

29.

Carretta

T. R.

Ree

M. J.

(2018). The relations between cognitive ability and personality Convergent results across measures. International Journal of Selection and Assessment, 26, 133–144.

30.

Caspi

Wright

B. R. E.

Moffitt

T. E.

Silva

P. A.

(1998). Early failure in the labor market: Childhood and adolescent predictors of unemployment in the transition to adulthood. American Sociological Review, 63, 424–451.

31.

Cheng

Furnham

(2012). Childhood cognitive ability, education, and personality traits predict attainment in adult occupational prestige over 17 years. Journal of Vocational Behavior, 81, 218–226.

32.

Chessbase. (2010, March 15). Magnus Carlsen on his chess career. https://en.chessbase.com/post/magnus-carlsen-on-his-che-career (Translated from “Ich bin chaotisch und faul,” 9, Der Spiegel, https://www.spiegel.de/spiegel/a-683764.html)

33.

Cohen

D. J.

(2007). The very separate worlds of academic and practitioner publications in human resource management: Reasons for the divide and concrete solutions for bridging the gap. Academy of Management Journal, 50, 1013–1019.

34.

Cohen

West

S. G.

Aiken

L. S.

(2003). Applied multiple regression/correlation analysis for the behavioral sciences (3rd ed.). Erlbaum.

35.

Colvin

(2008). Talent is overrated: What really separates world-class performers from everybody else. Penguin.

36.

Cook

T. D.

Campbell

D. T.

Peracchio

(1990). Quasi experimentation. In Dunnette

M. D.

Hough

L. M.

(Eds.), Handbook of industrial & organizational psychology (pp. 491–576). Consulting Psychologists Press.

37.

Cottrell

J. M.

Newman

D. A.

Roisman

G. I.

(2015). Explaining the Black-White gap in cognitive test scores: Toward a theory of adverse impact. Journal of Applied Psychology, 100, 1713–1736.

38.

Coward

W. M.

Sackett

P. M.

(1990). Linearity of ability-performance relationships: A reconfirmation. Journal of Applied Psychology, 75, 297–300.

39.

Coyle

(2009). The talent code: Greatness isn’t born. It’s grown. Here’s how. Bantam Dell.

40.

Coyle

T. R.

(2015). Relations among general intelligence (g), aptitude tests, and GPA: Linear effects dominate. Intelligence, 53, 16–22.

41.

Dahlke

J. A.

Sackett

P. R.

Kuncel

N. R.

(2019). Effects of range restriction and criterion contamination on differential validity of the SAT by race/ethnicity and sex. Journal of Applied Psychology, 104, 814–831.

42.

Daly

Egan

O’Reilly

(2015). Childhood general cognitive ability predicts leadership role occupancy across life: Evidence from 17,000 cohort study participants. The Leadership Quarterly, 26, 323–341.

43.

Deary

I. J.

(2000). Looking down on human intelligence: From psychometrics to the brain. Oxford University Press.

44.

Deary

I. J.

Weiss

Batty

G. D.

(2010). Intelligence and personality as predictors of illness and death: How researchers in differential psychology and chronic disease epidemiology are collaborating to understand and address health inequalities. Psychological Science in the Public Interest, 11, 53–79.

45.

Dunlap

W. P.

(1994). Generalizing the common language effect size indicator to bivariate normal correlations. Psychological Bulletin, 116, 509–511.

46.

Elliott

Shepherd

(2006). Cohort profile: 1970 British Birth Cohort (BCS70). International Journal of Epidemiology, 35, 836–843.

47.

Ericsson

Pool

(2016). Peak: Secrets from the new science of expertise. Houghton Mifflin Harcourt.

48.

Fairtest.org. (2021). 1,685+ accredited, 4-year colleges & universities with ACT/SAT-optional testing policies for Fall, 2021 admissions. http://fairtest.org/university/optional

49.

Fergusson

(2019, June/July). The curse of genius. The Economist 1843 Magazine. https://www.1843magazine.com/features/the-curse-of-genius

50.

Ferriman-Robertson

Smeets

Lubinski

Benbow

C. P.

(2010). Beyond the threshold hypothesis: Even among the gifted and top math/science graduate students, cognitive abilities, vocational interests, and lifestyle preferences matter for career choice, performance, and persistence. Current Directions in Psychological Science, 19, 346–351.

51.

Funder

D. C.

Ozer

D. J.

(2019). Evaluating effect size in psychological research: Sense and nonsense. Advances in Methods and Practices in Psychological Research, 2, 156–168.

52.

Gale

C. R.

Batty

G. D.

McIntosh

A. M.

Porteous

D. J.

Deary

I. J.

Rasmussen

(2013). Is bipolar disorder more common in highly intelligent men? A cohort study of a million men. Molecular Psychiatry, 18, 190–194.

53.

Galperin

R. V.

Hahl

Sterling

A. D.

Guo

(2020). Too good to hire? Capability and inferences about commitment in labor markets. Administrative Science Quarterly, 65, 275–313.

54.

Ganzach

(1998). Intelligence and job satisfaction. Academy of Management Journal, 41, 526–539.

55.

Ganzach

Gotlibobski

Greenberg

Pazy

(2013). General mental ability and pay: Nonlinear effects. Intelligence, 41, 631–637.

56.

Gatiss

Moffat

Vertue

(Producers). (2010). Sherlock [TV series]. BBC

57.

Gignac

G. E.

Darbyshire

Ooi

(2018). Some people are attracted sexually to intelligence: A psychometric evaluation of sapiosexuality. Intelligence, 66, 98–111.

58.

Gignac

G. E.

Starbuck

C. L.

(2019). Exceptional intelligence and easygoingness may hurt your prospects: Threshold effects for rated mate characteristics. British Journal of Psychology, 110, 151–172.

59.

Gignac

G. E.

Szodorai

E. T.

(2016). Effect size guidelines for individual differences researchers. Personality and Individual Differences, 102, 74–78.

60.

Gladwell

(2008). Outliers: The story of success. Little, Brown & Co.

61.

Gonzalez-Mule

Carter

K. M.

Mount

M. K.

(2017). Are smarter people happier? Meta-analyses of the relationships between general mental ability and job and life satisfaction. Journal of Vocational Behavior, 99, 146–164.

62.

Gottfredson

L. S.

Deary

I. J.

(2004). Intelligence predicts health and longevity, but why? Current Directions in Psychological Science, 13, 1–4.

63.

Grant

A. M.

Schwartz

(2011). Too much of a good thing: The challenge and opportunity of the inverted U. Perspectives on Psychological Science, 6, 61–76.

64.

Grossman

(2007). Soon I will be invincible. Pantheon Books.

65.

Guilford

J. P.

(1967). The nature of human intelligence. McGraw-Hill.

66.

Halberstam

(1972). The best and the brightest. Random House.

67.

Hauser

S. M.

(2000). Education, ability, and civic engagement in the contemporary United States. Social Science Research, 29, 556–582.

68.

Helms

J. E.

(2012). A legacy of eugenics underlies racial-group comparisons in intelligence testing. Industrial and Organizational Psychology: Perspectives on Science and Practice, 5, 176–178.

69.

Herd

Carr

Roan

(2014). Cohort profile: Wisconsin Longitudinal Study (WLS). International Journal of Epidemiology, 43, 34–41.

70.

Highhouse

Rada

T. B.

(2015). Different worldviews explain perceived effectiveness of different employment tests. International Journal of Selection and Assessment, 23, 109–119.

71.

Hornsey

M. J.

Bain

P. G.

Harris

E. A.

Lebedeva

Kashima

E. S.

Guan

González

Chen

S. X.

Blumen

(2018). How much is enough in a perfect world? Cultural variation in ideal levels of happiness, pleasure, freedom, health, self-esteem, longevity, and intelligence. Psychological Science, 29, 1393–1404.

72.

Howard

(Director). (2001). A beautiful mind [Film]. Universal Pictures.

73.

Howe

M. J. A.

(2001). IQ in question: The truth about intelligence. SAGE.

74.

Erdogan

Bauer

T. N.

Jiang

Liu

(2015). There are lots of big fish in this pond: The role of peer overqualification on task significance, perceived fit, and performance for overqualified employees. Journal of Applied Psychology, 100, 1228–1238.

75.

Hunt

(2010). Human intelligence. Cambridge University Press.

76.

Hunter

J. E.

Schmidt

F. L.

(2004). Methods of meta-analysis: Correcting error and bias in research findings (2nd ed.). SAGE.

77.

Jackson

D. J. R.

Dewberry

Gallagher

(2018). A comparative study of practitioner perceptions of selection methods in the United Kingdom. Journal of Occupational and Organizational Psychology, 91, 33–56.

78.

Jauk

Benedek

Dunst

Neubauer

A. C.

(2013). The relationship between intelligence and creativity: New support for the threshold hypothesis by means of empirical breakpoint detection. Intelligence, 41, 212–221.

79.

Jensen

A. R.

(1980). Bias in mental testing. The Free Press.

80.

Joo

Aguinis

Bradley

K. J.

(2017). Not all nonnormal distributions are created equal: Improved theoretical and measurement precision. Journal of Applied Psychology, 102, 1022–1053.

81.

Judge

T. A.

Colbert

A. E.

Iles

(2004). Intelligence and leadership: A quantitative review and test of theoretical propositions. Journal of Applied Psychology, 89, 542–552.

82.

Judge

T. A.

Ilies

Dimotakis

(2010). Are health and happiness the product of wisdom? The relationship of general mental ability to educational and occupational attainment, health, and well-being. Journal of Applied Psychology, 95, 454–468.

83.

Judge

T. A.

Klinger

R. L.

Simon

L. S.

(2010). Time is on my side: Time, general mental ability, human capital, and extrinsic career success. Journal of Applied Psychology, 95, 92–107.

84.

Kanazawa

(2012). The intelligence paradox: Why the intelligent choice isn’t always the smart one. Wiley.

85.

Karpinski

R. I.

Kolb

A. M. K.

Tetreault

N. A.

Borowski

T. B.

(2018). High intelligence: A risk factor for psychological and physiological overexcitabilities. Intelligence, 66, 8–23.

86.

Karwowski

Gralewski

(2013). Threshold hypothesis: Fact or artifact? Thinking Skills and Creativity, 8, 25–33.

87.

Kaufman

S. B.

DeYoung

C. G.

Gray

J. R.

Jiménez

Brown

Mackintosh

(2010). Implicit learning as an ability. Cognition, 116, 321–340.

88.

Keyes

(1966). Flowers for Algernon. Harcourt, Brace & World.

89.

Kohout

F. J.

Berkman

L. F.

Evans

D. A.

Cornoni-Huntley

(1993). Two shorter forms of the CES-D depression symptoms index. Journal of Aging and Health, 5, 179–193.

90.

Kuncel

N. R.

Hezlett

S. A.

(2007). Standardized tests predict graduate students’ success. Science, 315, 1080–1081.

91.

Kuncel

N. R.

Hezlett

S. A.

Ones

D. S.

(2004). Academic performance, career potential, creativity, and job performance: Can one construct predict them all? Journal of Personality and Social Psychology, 86, 148–161.

92.

Langin

(2019). Ph.D. programs drop standardized exam. Science, 364, 816.

93.

W. D.

Arvey

R. D.

Song

(2011). The influence of general mental ability, self-esteem and family socioeconomic status on leadership role occupancy and leader advancement: The moderating role of gender. The Leadership Quarterly, 22, 520–534.

94.

Lorre

Prady

(Producers). (2007). The big bang theory [TV series]. CBS Television.

95.

Lowenstein

(2000). When genius failed: The rise and fall of long-term capital management. Random House.

96.

Ludwig

A. M.

(1996). The price of greatness: Resolving the creativity and madness controversy. Guilford Press.

97.

Lykken

D. T.

(1968). Statistical significance in psychological research. Psychological Bulletin, 70, 151–159.

98.

Macnamara

B. N.

Hambrick

D. Z.

Oswald

F. L.

(2014). Deliberate practice and performance in music, games, sports, education, and professions: A meta-analysis. Psychological Science, 25, 1608–1618.

99.

Madden

(Director). (2005). Proof [Film]. Miramax Pictures.

100.

Maisel

(2013). Why smart people hurt: A guide for the bright, the sensitive, and the creative. Conari Press.

101.

Major

J. T.

Johnson

Deary

I. J.

(2014). Linear and nonlinear associations between general intelligence and personality in Project TALENT. Journal of Personality and Social Psychology, 106, 638–654.

102.

Maltarich

M. A.

Nyberg

A. J.

Reilly

(2010). A conceptual and empirical analysis of the cognitive ability–turnover relationship. Journal of Applied Psychology, 95, 1058–1070.

103.

Maranto

Wai

(2020). Why intelligence is missing from American education policy and practice, and what can be done about it. Journal of Intelligence, 8, Article 2. https://doi.org/10.3390/jintelligence8010002

104.

Matta

Gritti

E. S.

Lang

(2019). Personality assessment of intellectually gifted adults: A dimensional trait approach. Personality and Individual Differences, 140, 21–26.

105.

McLean

Elkind

(2003). The smartest guys in the room: The amazing rise and scandalous fall of Enron. Portfolio/Penguin.

106.

Miller

(1983). The drama of the gifted child and the search for the true self. Faber & Faber.

107.

Muller

C. B.

Ride

S. M.

Fouke

Whitney

Denton

D. D.

Cantor

Nelson

D. J.

Plummer

Busch-Vishniac

Meyers

Rosser

S. V.

Schiebinger

Roberts

Burgess

Beeson

Metz

S. S.

Sanders

Watford

B. A.

. . . Rosser

S. V.

(2005). Gender differences and performance in science [Letter to the Editor]. Science, 307, 1043. doi:10.1126/science.307.5712.1043b

108.

Nickel

L. B.

Roberts

B. W.

Chernyshenko

O. S.

(2019). No evidence of a curvilinear relation between conscientiousness and relationship, work, and health outcomes. Journal of Personality and Social Psychology, 116, 296–312.

109.

Nikolaev

McGee

J. J.

(2016). Relative verbal intelligence and happiness. Intelligence, 59, 1–7.

110.

Nisbett

R. E.

(2009). Intelligence and how to get it: Why schools and cultures count. Norton.

111.

Ones

D. S.

Dilchert

Viswesvaran

Salagado

(2017). Cognitive abilities: Measurement and validity for employee selection. In Farr

Tippins

N. T.

(Eds.), Handbook of employee selection (pp. 251–276). Routledge.

112.

Park

Lubinski

Benbow

C. P.

(2007). Contrasting intellectual patterns for creativity in the arts and sciences: Tracking intellectually precocious youth over 25 years. Psychological Science, 18, 948–952.

113.

Park

Lubinski

Benbow

C. P.

(2008). Ability differences among people who have commensurate degrees matter for scientific creativity. Psychological Science, 19, 957–961.

114.

Penney

A. M.

Miedema

V. C.

Mazmanian

(2015). Intelligence and emotional disorders: Is the worrying and ruminating mind a more intelligent mind? Personality and Individual Differences, 74, 90–93.

115.

Pluchino

Biondo

A. E.

Rapisarda

(2018). Talent versus luck: The role of randomness in success and failure. Advances in Complex Systems, 21, Article 1850014. https://doi.org/10.1142/S0219525918500145

116.

Preckel

Baudson

T. G.

Krolak-Schwerdt

Glock

(2015). Gifted and maladjusted? Implicit attitudes and automatic associations related to gifted children. American Educational Research Journal, 52, 1160–1184.

117.

Ree

M. J.

Carretta

T. R.

(1995). Group differences in aptitude factor structure on the ASVAB. Educational and Psychological Measurement, 55, 268–277.

118.

Reitan

Stenberg

S. A.

(2019). From classroom to conscription: Leadership emergence in childhood and early adulthood. The Leadership Quarterly, 30, 298–319.

119.

Roberts

B. W.

Kuncel

N. R.

Shiner

Caspi

Goldberg

L. R.

(2007). The power of personality: The comparative validity of personality traits, socioeconomic status, and cognitive ability for predicting important life outcomes. Perspectives on Psychological Science, 2, 313–345.

120.

Robson

(2019). The intelligence trap: Why smart people do stupid things and how to make wiser decisions. W.W. Norton.

121.

Rothwell

(2019). A republic of equals: A manifesto for a just society. Princeton University Press.

122.

Rutter

Tizard

Whitmore

(1970). Education, health, and behavior. Longmans.

123.

Ryff

C. D.

Keyes

C. L. M.

(1995). The structure of psychological well-being revisited. Journal of Personality and Social Psychology, 69, 719–727.

124.

Rynes

S. L.

(2012). The research-practice gap in I/O psychology and related fields: Challenges and potential solutions. In Kozlowski

S. W. J.

(Ed.), Oxford handbook of organizational psychology (Vol. 1, pp. 409–452). Oxford University Press.

125.

Rynes

S. L.

Colbert

A. E.

Brown

K. G.

(2002). HR professionals’ beliefs about effective human resource practices: Correspondence between research and practice. Human Resource Management, 41, 149–174.

126.

Sackett

P. R.

Borneman

Connelly

B. S.

(2008). High stakes testing in education and employment: Evaluating common criticisms regarding validity and fairness. American Psychologist, 63, 215–227.

127.

Sackett

P. R.

Ostgaard

D. J.

(1994). Job-specific applicant pools and national norms for cognitive ability tests: Implications for range restriction corrections in validation research. Journal of Applied Psychology, 79, 680–684.

128.

Sassenberg

Ditrich

(2019). Research in social psychology changed between 2011 and 2016: Larger sample sizes, more self-report measures, and more online studies. Advances in Methods and Practices in Psychological Science, 2, 107–114.

129.

Schmidt

F. L.

Hunter

J. E.

(1998). The validity and utility of selection methods in personnel psychology: Practical and theoretical implications of 85 years of research findings. Psychological Bulletin, 124, 262–274.

130.

Schmidt

F. L.

Hunter

J. E.

(2000). Select on intelligence. In Locke

E. A.

(Ed.), Blackwell handbook of principles of organizational behavior (pp. 3–14). Blackwell.

131.

Schmidt

F. L.

Hunter

J. E.

(2004). General mental ability in the world of work: Occupational attainment and job performance. Journal of Personality and Social Psychology, 86, 162–173.

132.

Scorsese

(Director). (2004). The aviator [Film]. Warner Brothers Pictures.

133.

Shen

Kiger

T. B.

Davies

S. E.

Rasch

R. L.

Simon

K. M.

Ones

D. S.

(2011). Samples in applied psychology: Over a decade of research in review. Journal of Applied Psychology, 96, 1055–1064.

134.

Silver

I. A.

(2019). Linear and non-linear: An exploration of the variation in the functional form of verbal IQ and antisocial behavior as adolescents age into adulthood. Intelligence, 76, Article 101375. https://doi.org/10.1016/j.intell.2019.101375

135.

Silverberg

(2017, October 15). The surprising damage smart workers can cause. BBC Worklife. https://www.bbc.com/worklife/article/20171013-the-surprising-damage-smart-workers-can-cause

136.

Simonsohn

(2018). Two lines: A valid alternative to the invalid testing of U-shaped relationships with quadratic regression. Advances in Methods and Practices in Psychological Sciences, 1, 538–555.

137.

Simonton

D. K.

(1985). Intelligence and personal influence in groups: Four nonlinear models. Psychological Review, 92, 532–547.

138.

Stavrova

Ehlebracht

(2019). The cynical genius illusion: Exploring and debunking lay beliefs about cynicism and competence. Personality and Social Psychology Bulletin, 45, 254–269.

139.

Stephan

Sutin

A. R.

Kornadt

Caudroit

Terracciano

(2018). Higher IQ in adolescence is related to a younger subjective age in later life: Findings from the Wisconsin Longitudinal Study. Intelligence, 69, 195–199.

140.

Taleb

N. N.

(2019, January 1). IQ is largely a pseudoscientific swindle. Incerto. https://medium.com/incerto/iq-is-largely-a-pseudoscientific-swindle-f131c101ba39

141.

Tao

(2007). Re: Does one have to be a genius to do maths? [Comment on the post “Does one have to be a genius to do maths?] What’s new. https://terrytao.wordpress.com/career-advice/does-one-have-to-be-a-genius-to-do-maths/#comment-22648

142.

Tenhiala

Giluk

T. L.

Kepes

Simon

I. S.

Kim

(2016). The research-practice gap in human resource management: A cross-cultural study. Human Resource Management, 55, 179–200.

143.

Tennant

Hiller

Fishwick

Platt

Joseph

Weich

Parkinson

Secker

Stewart-Brown

(2007). The Warwick-Edinburgh Mental Well-being scale (WEMWBS): Development and UK validation. Health and Quality of Life Outcomes, 5, Article 63. https://doi.org/10.1186/1477-7525-5-63

144.

Tyler

L. E.

(1974). Individual differences: Abilities and motivational directions. Prentice-Hall, Inc.

145.

Van Iddekinge

C. H.

Aguinis

Mackey

J. D.

DeOrtentiis

P. S.

(2018). A meta-analysis of the interactive, additive, and relative effects of cognitive ability and motivation on performance. Journal of Management, 44, 249–279.

146.

Vasquez

M. J.

Jones

J. M.

(2006). Increasing the number of psychologists of color: Public policy issues for affirmative diversity. American Psychologist, 61, 132–142.

147.

Wai

(2014). Experts are born, then made: Combining prospective and retrospective longitudinal data shows that cognitive ability matters. Intelligence, 45, 74–80.

148.

Wai

Brown

M. I.

Chabris

C. F.

(2018). Using standardized test scores to include general cognitive ability in education research and policy. Journal of Intelligence, 6, Article 37. https://doi.org/10.3390/jintelligence6030037

149.

Wai

Lubinski

Benbow

C. P.

(2005). Creativity and occupational accomplishments among intellectually precocious youths: An age 13 to 33 longitudinal study. Journal of Educational Psychology, 97, 484–492.

150.

Wai

Rindermann

H. R.

(2017). What goes into high educational and occupational achievement? Education, brains, hard work, networks, and other factors. High Ability Studies, 28, 127–145.

151.

Wainer

(2011). Uneducated guesses: Using evidence to uncover misguided education policies. Princeton University Press.

152.

Ware

J. E.

Kosinski

Keller

S. D.

(1996). A 12-item Short-Form Health Survey: Construction of scales and preliminary tests of reliability and validity. Medical Care, 34, 220–233.

153.

Warne

R. T.

Burningham

(2019). Spearman’s g found in 31 non-western nations: Strong evidence that g is a universal phenomenon. Psychological Bulletin, 145, 237–272.

154.

Warren

J. R.

Hauser

R. M.

Sheridan

J. T.

(2002). Occupational stratification across the life course: Evidence from the Wisconsin Longitudinal Study. American Sociological Review, 67, 432–455.

155.

Watson

C. G.

Klett

W. G.

(1975). The Henmon-Nelson, Cardall-Miles, Slosson, and quick tests as predictors of WAIS IQ. Journal of Clinical Psychology, 31, 310–313.

156.

Wiliam

(2019). Some reflections on the role of evidence in improving education. Educational Research and Evaluation, 25, 127–139.

157.

Wraw

Deary

I. J.

Der

Gale

C. R.

(2016). Intelligence in youth and mental health at age 50. Intelligence, 58, 69–79.

158.

Wrulich

Brunner

Stadler

Schalke

Keller

Martin

(2014). Forty years on: Childhood intelligence predicts health in middle adulthood. Health Psychology, 33, 292–296.

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