Telling students it tested intelligence had mixed effects on how long they kept going
HelpedThe short version
After positive feedback, students not told of the test kept going longer.

- 145
- university students in three lab studies
- Recorded
- behaviour was recorded
- 1 tool
- tested
The study
Who took part
145 university students took part in three lab experiments. The first had 48 students, the second 54 (26 men and 28 women), and the third 43 men.
What they did
Some students were told the task tested intelligence, and others got a plain description. Feedback was positive, about average, or none, and students were then left alone for 2 to 6 minutes.
What happened
After positive feedback, students told it tested intelligence stayed on about 4 minutes, against about 5. With no feedback, they kept going about 4 minutes, against about 2. With average feedback, 70 in 100 such students kept working, against 48 in 100.
What the study found
- HelpedFocus
After positive feedback, students not told of the test kept going longer.
Trial of 145 university students in three lab studies · vs students told it measured intelligence · behaviour was recorded
- MixedFocus
With positive feedback, students not told of the test kept going longer. With no feedback, it was the other way round.
Trial of 145 university students in three lab studies · vs students told it measured intelligence · behaviour was recorded
- HelpedMotivation
Students not told of the test rated their choice and enjoyment higher.
Trial of 145 university students in three lab studies · vs students told it measured intelligence · behaviour was recorded
How solid is this?
- Behaviour was recorded
Source
Ego-Involved Persistence: When Free-Choice Behavior Is Not Intrinsically Motivated (1991)
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