# Spector and Mazzeo (1980) - Program Effectiveness Data¶

## Description¶

Experimental data on the effectiveness of the personalized system of instruction (PSI) program

## Notes¶

Number of Observations - 32

Number of Variables - 4

Variable name definitions::

improved.  1 indicates an improvement.
TUCE  - Test score on economics test
PSI   - participation in program
GPA   - Student's grade point average


## Source¶

http://pages.stern.nyu.edu/~wgreene/Text/econometricanalysis.htm

The raw data was downloaded from Bill Greene’s Econometric Analysis web site, though permission was obtained from the original researcher, Dr. Lee Spector, Professor of Economics, Ball State University.