Interteaching: How much does each component increase its efficacy?

Jimenez et al. (2021) asked which part of interteaching really helps college students.

They split students into groups. Everyone got a prep guide and reading. Some groups added peer discussion. Some added a short lecture after the talk.

The team then compared test scores to see which pieces mattered most.

The big winner was peer discussion. Test scores jumped when students talked it out.

Adding a teacher lecture after the talk gave no extra gain.

Reading plus prep guide alone helped a little, but discussion was the engine.

Hurtado-Parrado et al. (2022) pooled 38 studies and found the same: interteaching beats lecture. Their meta-analysis includes this 2021 trial, so the new result sits inside their bigger picture.

Brown et al. (1972) and Born et al. (1974) showed that early personalized instruction also topped lecture. Back then, teachers still ran the show. Jimenez now shows students can run the show themselves—just keep the discussion.

Rumsey (1985) used the same “strip it to the core” method with spelling. Both papers prove you can drop extra teacher steps once you find the active part.

You can save class time. Drop the clarifying lecture and let students discuss. The score gains stay the same, so you gain minutes for more practice or quicker dismissal. Try it next week: give the prep sheet, set a five-minute peer huddle, and move on.