Intervention students reported significantly higher exam confidence than controls (M=4.3 vs 3.4 on a 5-point scale, d=0.76)¶

Claim · All claims
Evidence · 1 study · causal r2 · q2 · i2 medium
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i2 Self-reported Exam Confidence was significantly higher in the intervention group (M=4.3/5.0) than the control group (M=3.4/5.0), t(140) = 4.56, p < .001, d= 0.76. → Matey Yordanov 2026

Evidence¶

Matey Yordanov 2026¶

Matey Yordanov, Mikhail Bychkov, and Andrei Kuchma. (2026). The Effect of High-Frequency, Automatically-marked Formative Assessments on Student Outcomes in A-Level Sciences. https://arxiv.org/abs/2607.23566 doi:10.48550/arxiv.2607.23566

q2 · i2 · causal · r2

Independent samples t-test on post-intervention survey data; composite Likert-scale constructs adapted from Bandura's self-efficacy scales with Cronbach's α > .80. The article reports the printed statistics above, including effect size d = 0.76, and qualitative feedback that ECF validation "systematically reduced mathematics anxiety."

"Self-reported “Exam Confidence“ was significantly higher in the intervention group (M= 4.3/5.0) compared to the control group (M= 3.4/5.0),t(140) = 4.56,p < .001,d= 0.76."

Discussion¶

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