Experimental and control groups differed only in use of instructional videos¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person
Design limits · Expósito 2020: the intervention came bundled with another change (read from the study by two models, 2026-10-29)

Subclaims¶

q3 i? The experiment was designed so that the only significant difference between the two treatment groups was the use of the instructional videos. → Expósito 2020

Evidence¶

Expósito 2020¶

Expósito, A., Sánchez-Rivas, J., Gómez-Calero, M. P., & Pablo-Romero, M. P. (2020). Examining the use of instructional video clips for teaching macroeconomics. Computers & Education, 143, 103705. https://doi.org/10.1016/j.compedu.2019.103709

q3 · i? · causal · r2

The experimental group received online access to videos via the university virtual platform for one week, while the control group attended two chalk-and-talk lectures covering similar content and received written static material. The design ensured "the only significant difference between the two treatment groups was the use of the instructional videos."

"the experiment was designed so that the only significant difference between the two treatment groups was the use of the instructional videos; one group of students with online access to the media materials (experimental group) and others in a pure face-to-face setting (control group)."

Discussion¶

Related Claims¶

• Video-enhanced analytic rubrics did not significantly outperform text-based analytic rubrics on oral presentation performance, though a marginal trend favored video-enhanced rubrics — related
• No significant pre-test difference existed between the two groups' entry listening knowledge — a broader claim this one bears on
• Instructional video clips improved macroeconomics test scores relative to control — related