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Effects of No Feedback, Task-Related Comments, and Grades on Intrinsic Motivation and Performance
Butler & Nisan 1986 · RCT (class-randomised) · touches 1 claim · used in 1 attack
Read the study itself (doi.org) ↗
Which beliefs it touches
- C4 Task feedback vs praise sets a limit on it
Grades alone matched task comments on a later quantitative speed task; comments won on the qualitative task.
Attacks that used it
- C4 attack #1, 16 October 2026: narrowed