The construction and evaluation of the Perception of Social Closeness Scale (PSCS) is described. The PSCS, designed to measure classroom social distance, is modeled after the Classroom Social Distance Scale and is constructed in a manner to be used with classroom teachers. Following a description of the scale's development, items were selected to construct a five item scale with consideration given to ambiquity (as evidenced by low Q values), the relevance of the items content, and the need for statements representing varying degrees of acceptance along the continuum from positive to negative. The format of the PSCS requires a horizontal placement of subjects and a vertical listing of statements. Classroom students and teachers are asked to place a check in the space opposite the one statement which most clearly expresses their feelings about the person. Test-retest reliability for PSCS gave a Pearson r of .780, using 29 grade 2 students on two consecutive days. Reliability using 20 teachers gave an r of .924. Concurrent validity gave a Spearman rank correlation coefficient of .971 for 10 boys and .772 for 11 girls using 21 grade 3 students on two consecutive days. (RL)