Designed to assist community college practitioners in understanding and utilizing standardized test results for making instructional, guidance, and administrative decisions, this three-part guidebook examines the uses of test results, the evaluation of standardized tests, and procedures for interpreting test scores. Section I discusses the reporting of test performance, and reviews the functions of number ordering and ranking as they relate to test scoring. This section includes an examination of the nominal, ordinal, interval, and ratio measuring scales, and the data organizing procedures of two-way classification, qualitative classification, ranking, and scores expressed in uniform units. Section II reviews factors to consider when selecting a test, presents a 14-item test evaluation outline, cites sources for information about tests, and describes test evaluation criteria, including content validity, construct validity, predictive validity, face validity, reliability, standardization, and norms. The final section presents a 12-step test interpretation procedure oriented around student involvement (i.e., a procedure that allows students to apply the test results to their own educational, vocational, and personal circumstances and decisions). The 12 steps include discussing the test; inquiring about students' feelings while taking the test and their perceptions of why the test was selected; discussing norm groups; asking students to estimate their performance; discussing the use of ranges in test interpretation; providing self-estimate forms; and discussing actual scores. A list of sources for information about standardized tests is appended. (PAA)