“…195-201. This article presents brief historical background on the ITPA, reviews highlights of some ITPA research findings, outlines the validity studies undertaken by McCarthy and Olson (1964) Children, NEA, 1963, pp. 183-187. Four studies (Smith, 1962;Mueller and Smith, 1964;Mueller and Weaver, 1963;and Semmel and Mueller, 1962) on the ITPA are reviewed. Ease of learning ITPA administration and certain problems in the administration and test materials are discussed.…”