Measures of potentiality for machine calculation

"A battery of nine pencil-and-paper tests was constructed in an attempt to obtain measures of abilities needed for proficiency in the operation of a crank-driven calculator. The selection of tests was based upon an analysis of the job in terms of the worker characteristics which appeared necessary and upon results found in previous studies. The scores made on these tests by a group of 44 women learning to operate the crank-driven calculator were correlated with criterion measures based upon examinations in calculator work taken during the training course." The final test battery selected by the Wherry-Doolittle method included three tests: Number-Dot Location, Arithmetic Computations, Tapping. Test-retest reliabilities of these tests were found to be .81, .92, and .68. The three tests yielded a shrunken R of .54 with the criterion. The author believes this R to be too low because of the homogeneity of the subjects used and errors in criterion measures. Samples and brief descriptions of the tests used are presented.