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	Points of Attachment Index	Motivation Scale for Sport Consumption
Field	Sport Leisure Studies	Sport Leisure Studies
Family	Latent structure	Latent structure
Year of origin	2003	2001
Originator	Galen T. Trail, Matthew J. Robinson, Ronald J. Dick & Andrew J. Gillentine	Galen T. Trail & Jeffrey D. James
Type	Multidimensional latent-construct measurement scale	Multidimensional self-report psychometric scale
Seminal source	Trail, G. T., Robinson, M. J., Dick, R. J., & Gillentine, A. J. (2003). Motives and Points of Attachment: Fans Versus Spectators in Intercollegiate Athletics. Sport Marketing Quarterly, 12(4), 217-227.	Trail, G. T., & James, J. D. (2001). The motivation scale for sport consumption: Assessment of the scale's psychometric properties. Journal of Sport Behavior, 24(1), 108-127.
Aliases	PAI, Points of Attachment Scale, Multidimensional Sport Attachment Measure, Trail Points of Attachment	MSSC, Sport Consumption Motivation Scale, Trail-James Motivation Scale
Related	4	3
Summary	The Points of Attachment Index (PAI) is a multidimensional measurement instrument, developed by Galen Trail, Matthew Robinson, Ronald Dick, and Andrew Gillentine in 2003, that captures the several distinct objects to which sport fans become psychologically attached. Where earlier work treated fan identification as attachment to the team alone, the PAI recognizes that an individual may identify with the players, the coach, the surrounding community, the sport itself, the university or organization, and the level of sport, in addition to the team. Each of these objects is measured as a separate reflective latent factor through multi-item survey scales and validated with confirmatory factor analysis. Robinson and Trail's 2005 study extended the index, showing how these points of attachment relate to spectator motives, gender, and sport preference, and how they differentially predict attendance, loyalty, and consumption behavior.	The Motivation Scale for Sport Consumption (MSSC) is a multidimensional self-report instrument that measures why people consume spectator sport, developed by Galen Trail and Jeffrey James in 2001. Rather than treating sport interest as a single drive, the MSSC distinguishes nine separable motives — achievement, acquisition of knowledge, aesthetics, drama, escape, family, physical skill of the players, physical attractiveness of participants, and social interaction — each measured as its own latent factor. Trail and James built the scale to address psychometric weaknesses they saw in earlier spectator-motivation measures, assessing its content, criterion, and construct validity and its internal consistency in their Journal of Sport Behavior paper. Because different motives predict different consumption behaviors, the MSSC lets researchers and marketers profile a fan base on the specific reasons people attend, watch, and spend, and it became one of the most widely used spectator-motivation instruments in sport marketing.