In the search for unitary mental traits it appears that the answer may not be finite. In view of this conclusion on the part of several investigators (2), the writer suggests the probability that psychological tests intended to measure ability in a specified area may contain a number of psychological components. As mechanical comprehension is one of the important areas of psychological testing, the writer believes that determination of the components of this area would be of great value.
Proceedings of the Iowa Academy of Science
©1951 Iowa Academy of Science, Inc.
Miller, Gilbert E.
"Some Components of Mechanical Composition,"
Proceedings of the Iowa Academy of Science, 58(1), 385-389.
Available at: https://scholarworks.uni.edu/pias/vol58/iss1/48