The Group Development Questionnaire Short (GDQS) Scales, a 13-item short form of the 60-item Group Development Questionnaire, was developed and validated across four studies. The GDQS scales with four items for Scale I, and three items for Scales II–IV, had consistent and acceptable internal consistencies across Studies 1 and 2 (α at or well above .65), similar to the parent measure. Moreover, the GDQS scales showed a comparable pattern of convergent, and criterion-related validity (Studies 1–3), and concurrent validity (Study 4). Collectively, these results indicate that the GDQS is a psychometrically acceptable and practically useful short measure of team/group development. The GDQS can freely be used for research, with written permission, and we conclude the paper with norm data and practical guidelines for researchers wanting to apply the measurement.