Syntes: Holmes (2011) — museum exhibit visit raised science achievement short-term; lasting effects not shown

Källa: Holmes, J. A. (2011). Informal learning: Student achievement and motivation in science through museum-based learning. https://doi.org/10.1007/s10984-011-9094-y

Verified content

• [publisher abstract] N = 228 grade-6 students randomly assigned to control, exhibit, lesson, or exhibit/lesson.
• [publisher abstract] Significant within-group achievement gains for the exhibit group from pretest to posttest and posttest to delayed posttest; lesson group showed motivation change.
• [publisher abstract] No other significant findings supporting long-term effects of the treatments on motivation or achievement across the four groups.

Limits

• Read level: abstract. Numbers only from what was read; do not use for a ledger verdict until full text is checked where marked abstract-only or secondary.

Why it is in the library

Second source (museum RCT) for the out-of-school candidate; short-term gain, weak long-term — useful limit (Phase B Near seed).

Added 2026-10-27 by the project (Phase B expansional push). [abstract] = published abstract; [full text] = full text; [assessment] = judgement; [secondary] = secondary summary pending paper check.