[A collection of papers by Phillip J. Rulon

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[A collection of papers by Phillip J. Rulon

by Phillip Justin Rulon

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More by Phillip Justin Rulon

The sound motion picture in science teaching

The sound motion picture in science teac...

An occupational classification for research workers

An occupational classification for resea...

The Profile problem

A comparison of phonographic recordings with printed material in terms of knowledge gained through their use alone

A comparison of phonographic recordings ...

Summary of the shorthand study

Summary of the shorthand study

On statistical tests of group differences

On statistical tests of group difference...