This study investigates how students perceivedsocial loafing and social interdependence influence grouplearning performance through group affective tone inundergraduate hospitality and tourism curricula. A ques-tionnaire survey was administered to collect data fromcollege students majoring hospitality and tourism man-agement at four Taiwanese universities. Of 660 distributedquestionnaires, 634 questionnaires were returned, accoun-ted for a 96 % response rate. To justify the aggregatedindividual data to the group level, this study used thewithin-group inter-rater agreement (rwg) to assess anddetermine 123 valid learning groups for data analysis. Theanalytical results show that group affective tone signifi-cantly mediates the effect of social loafing and socialinterdependence on group productivity, but not on groupfinal grades. Specific implications and suggestions are also discussed

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• Effects of Perceived Social Loafing, Social Interdependence,and Group Affective Tone on Students’ Group Learning Performance