spector | R Documentation |
A study to determine the effectiveness of a new teaching method in Economics
A data frame with 32 observations on the following 4 variables.
1 = exam grades improved, 0 = not improved
1 = student exposed to PSI (a new teach method), 0 = not exposed
a measure of ability when entering the class
grade point average
Spector, L. and Mazzeo, M. (1980), "Probit Analysis and Economic Education", Journal of Economic Education, 11, 37 - 44.
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