Hotz, Steven,Junnarkar, Gauri.2009-03-232009-03-2320002000Source: Masters Abstracts International, Volume: 39-04, page: 1262.9780612571266http://hdl.handle.net/10393/9444http://dx.doi.org/10.20381/ruor-16319Background. This thesis was guided by a series of research objectives, which were to: examine the literature to identify motivational factors for regular vigorous physical activity; draft an instrument that measures these motivational factors and pre-test it; conduct additional testing into how the items and instruction sets of the instrument were being understood; conduct an initial evaluation of the content, criterion-related, and construct validity of the instrument; and to assess the internal consistency and test-retest reliability of the instrument. Methods. (1) Instrument: Following scale development work, the final scale comprised 82-items that were scored on a five-point type scale, measuring the following fifteen sub-scales: Affect, Attitude, Affiliation, Barriers, Goals, Outcome expectancy, personal Normative Beliefs (PNB), Rewards, Self-determination, Self-efficacy, Self-evaluation, Self-presentation, Social comparison, Social support, Time. (2) Procedure: This cross-sectional study was conducted using a non-probability sample recruited from several private and governmental worksites or organizations. (Abstract shortened by UMI.)242 p.Health Sciences, Recreation.Thesis