Over 95% of student-authored questions included an explanation, mostly of good or excellent quality¶

Claim · All claims
Evidence · 1 study · design r2 · q3 · i2 medium
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? In Physics 1A repositories, over 95% of questions had an explanation and approximately two-thirds were rated good or excellent in each year. → Bates 2013

Evidence¶

Bates 2013¶

Bates, S. P., Galloway, R. K., Riise, J., and Homer, D. (2013). Assessing the quality of a student-generated question repository. https://arxiv.org/abs/1308.2202 doi:10.48550/arxiv.1308.2202

q3 · i2 · design · r2

Rating of explanations accompanying sampled Physics 1A questions (N=150 and N=200) on a five-point rubric (Table II), shown in Figure 3. The article reports "over 95% of cases students did construct an explanation" and roughly two-thirds good or excellent. No effect size is printed.

"The figure shows that in over 95% of cases students did construct an explanation of some kind, and in the vast majority of cases these were of good or excellent quality (approximately two-thirds of the questions sampled were in the ‘good’ or ‘excellent’ categories for each of the two years)."

Discussion¶

Related Claims¶

• 75% of student-authored physics questions met combined high-quality criteria (clear, correct, plausible distractors, above recall, adequate explanation) — related
• Explanation-quality distributions differed significantly between years for Physics 1A (2011 slightly lower) but not Physics 1B — related