The Bias Index significantly predicts all four WIAT-II achievement measures, with over-confidence associated with lower achievement¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2017 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? In regression models explaining 12% to 18% of variance, the Bias Index was a significant predictor of Word Reading, Numerical Operations, Spelling and Composite Score, with higher (over-confident) scores associated with lower achievement. → Freeman 2017

Evidence¶

Freeman 2017¶

Freeman, Emily E.; Karayanidis, Frini; Chalmers, Kerry A. (2017). Metacognitive monitoring of working memory performance and its relationship to academic achievement in Grade 4 children. Learning and Individual Differences, Vol. 57. http://dx.doi.org/10.1016/j.lindif.2017.06.003

q3 · i? · associational · r2

Multiple linear regressions (gender and age included as covariates) on the Grade 4 sample; the Bias Index was significant in all four models, with negative regression weights, e.g. β = -.37 for Spelling and Composite Score in Table 2.

"The models that included the Bias Index were all significant and explained from 12% to 18% of the variance in the measures of achievement. The Bias Index was a significant predictor in all four models, with higher scores (indicating over-confidence) associated with lower academic achievement scores."

Discussion¶

Related Claims¶

• Better calibration (lower Absolute Accuracy Index) is associated with higher Word Reading and Composite achievement scores — related
• Confidence on the WMPT predicts numeracy but not reading or spelling — related