Full-scale IQ does not predict GPA in older learners¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2017 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? WAIS full-scale IQ was not a significant predictor of GPA in the initial regression (β = 0.007, p = 0.936). → Imlach 2017

Evidence¶

Imlach 2017¶

Imlach, A.-R., Ward, D. D., Stuart, K. E., Summers, M. J., Valenzuela, M. J., King, A. E., Saunders, N. L., Summers, J., Srikanth, V. K., Robinson, A. & Vickers, J. C. (2017). Age is no barrier: predictors of academic success in older learners. npj Science of Learning 2:13. https://doi.org/10.1038/s41539-017-0014-5

q2 · i? · associational · r2

In the initial multiple regression (N = 181), WAIS full-scale IQ was non-significant (β = 0.007, p = 0.936, sr² = 0.000). The authors note substantial IQ variance remained in the sample (M = 119.96, range = 85–155), so restriction of range does not explain the null.

"In this study, IQ was not a predictor of success in older learners."

Discussion¶

Learner Variables¶

• General Cognitive Ability — predictor: learners who differ on it differ in outcomes

Related Claims¶

• Candidate gene polymorphisms (APOE, BDNF, COMT, KIBRA, SERT) are not associated with GPA in older learners — related
• Working memory predicts GPA in the initial model but not the final full-sample model — related
• Language processing and episodic memory predict first-year GPA in older university learners — reports the opposite
• Letter fluency shows no age-group difference in ANOVA, but older adults outperform young adults once processing speed and IQ are controlled — related
• Years of prior education significantly predict GPA in older learners — related