Statistical laboratory for vision tests at Purdue University

Abstract

This laboratory analyzes vision test data from several industrial plants. Persons trained at the Industrial Vision Institute, Purdue University, administer the vision tests and send the test scores to Purdue. Here the data are transcribed to punched cards by machine, after which they are analyzed and reports forwarded to the particular industrial companies concerned. The various types of statistical analyses include preparation of scattergrams (plotting measures of vision against measures of job success), tabulation of vision test statistics based on large groups, computation of correlation coefficients, and item analysis. (PsycInfo Database Record (c) 2025 APA, all rights reserved)