Handbook of educational psychology & measurementMartin Johan Nelson · First published 1941Open the Tome
A practical guide and wordbook in statistics for teachersMartin Johan Nelson · First published 1940Open the Tome
Tests and measurements in elementary educationMartin Johan Nelson · First published 1939Open the Tome
The differences in the achievement of elementary school pupils before and after the summer vacationMartin Johan Nelson · First published 1929Open the Tome
