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The purpose of this study was to examine the effects of 95-in. and 110-in. racket head-sizes in relation to beginning player skills test, daily playing achievement, and self-efficacy over a 13-day tennis unit. Participants ( n = 35) were randomly assigned to one of two treatment groups within one of two instructional classes. From the analysis of the data, it was concluded that students who used the larger 110-in. head-sized racket attained greater skill test scores and daily practice achievement for the forehand and backhand groundstrokes. In addition, participants using the 110-in. head-sized rackets improved their tennis self-efficacy to a larger degree and reported significantly less negative feeling states when compared to those using the 95-in. headsized racket.
Pellett et al. (Wed,) studied this question.