Affect (anxiety, depression, and hostility) in one-day experiential groups was studied as a function of group composition (three levels), leader (five trainers), and elapsed time (three measurement occasions). Analyses of covariance yielded only one significant main effect (trainers on the hostility scale) and no significant interactions. Findings are discussed in terms of the probability of insufficient time for group composition and leaders to produce significant arousal of anxiety and depression.
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