This report deals with the analysis of paper-pencil laboratory tests in general physics, constructed and administered at the University of Minnesota, 1952–1953. The characteristics of the tests were investigated and the relationships with other achievement measures were explored. With the exception of the Identification and Function, pretest intercorrelations were low. These two pretests were fair predictors for the corresponding posttests in Mechanics. All the pretests in Electricity were fair predictors for the corresponding posttests. The correlations between the paper-pencil tests and other criteria of achievement in elementary physics were either nonsignificantly different from zero, or low. On three of the four tests in Mechanics, boys scored significantly higher than girls. On all the posttests the means were significantly higher than for the pretests, irrespective of sex or course taken. The investigation lends support to the hypothesis that paper-pencil laboratory tests contain elements other than those evaluated by performance tests and the conventional measures of achievement in elementary physics.