Control Experimental

1. 500 word intro. passage historical

2. Studied steel passage for 35 min.

3. Took multiple choice test 3 days later

4. Mean 14.1S.D. 5.4

1. 500 word intro. passage higher level of abstraction - serve as organizer

2. Same

3. Same

4. Mean 16.7

S.D. 5.8

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