The results from two informal measures (a cloze test and a group reading inventory and a standardized reading test were compared in a study of instruments available for measuring adult reading performance. The three instruments were administered to 158 undergraduates enrolled in reading improvement classes. From this group, 75 subjects were randomly selected for analysis. The resulting data indicated that, in general, both a cloze test and a group reading inventory accurately discriminate levels of adult reading performance. The results suggest that the two informal measures, when used with adults, may provide appropriate alternatives to standardized tests. (FL)