Kelley, Truman Lee 1884-1961.
Crossroads in the mind of man : a study of differentiable mental abilities / Trumanl L. Kelley - Stanford University, Calif. : Stanford university press, 1928. - vii, 238 p. : illus., forms. ; 23 cm.
Includes bibliographical references and index.
28014912
Ability.
Educational tests and measurements
Child psychology.
Characters and characteristics.
Statistics.
150 / KEC
Crossroads in the mind of man : a study of differentiable mental abilities / Trumanl L. Kelley - Stanford University, Calif. : Stanford university press, 1928. - vii, 238 p. : illus., forms. ; 23 cm.
Includes bibliographical references and index.
28014912
Ability.
Educational tests and measurements
Child psychology.
Characters and characteristics.
Statistics.
150 / KEC