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We statistically controlled fitness (1.5-mile run), outcome-expectancy values, and perceived barriers for physical activity and then compared internal health locus of control (IHLOC) with internal exercise locus of control (IEXLOC) for predicting the physical activity of college students (N = 84). Prospective observations of self-reported free-living physical activity (seven-day recall) and supervised running (time x distance) were made at 2-, 5-, and 9-week intervals. IHLOC predicted seven-day recall at Week 2 (beta = .19) and Week 5 (beta = .36) (increase in adjusted R2 ranged from .05 to .12, p less than .05). Consistent with theory, the prediction was not reproducible when generalized outcome-expectancy value rather than outcome-expectancy value for health was assessed. IHLOC was unrelated to supervised running. IEXLOC was unrelated to activity in all analyses, even though exercise-specific measures of outcome-expectancy values (beta s = .20) and perceived barriers (beta s = .27-.32) predicted both seven-day recall and supervised running (p less than .05). IHLOC also discriminated (p less than .05) high active and low active subjects when criterion groups were formed from population norms on seven-day recall (greater than or less than 280 kcal.kg-1.week-1). Results indicate that tests of decision theories that include locus of control measures specific to health or exercise must adjust for fitness, perceived barriers to physical activity, and behaviorally relevant outcome-expectancy values of physical activity when studying college students. The construct validity of exercise locus of control remains uncertain for college students. 相似文献
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We examined the factorial validity and factorial invariance of the 3-day physical activity recall (3DPAR) using confirmatory factor analysis. Adolescent girls from two cohorts (N = 955, N = 1,797) completed the 3DPAR in the eighth grade; participants in Cohort 2 (N = 1,658) completed the 3DPAR again 1 year later in the ninth grade. The 3DPAR was best represented by two uncorrelated factors in Cohort 1. The two-factor, uncorrelated measurement model exhibited evidence of cross-validity between Cohorts 1 and 2. This model also exhibited configural and partial metric invariance between race and across time. Hence, the 3DPAR consisted of two uncorrelated factors underlying three indicators of both moderate and vigorous physical activity in this sample of Black and White girls across a 1-year period. The 3DPAR can be used in cross-sectional, prospective cohort and intervention studies that examine mediators and moderators of physical activity among Black and White adolescent girls. 相似文献
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Dowda M Pate RR Felton GM Saunders R Ward DS Dishman RK Trost SG 《Research quarterly for exercise and sport》2004,75(4):352-360
The purposes of this study were to describe and compare the specific physical activity choices and sedentary pursuits of African American and Caucasian American girls. Participants were 1,124 African American and 1,068 Caucasian American eighth-grade students from 31 middle schools. The 3-Day Physical Activity Recall (3DPAR) was used to measure participation in physical activities and sedentary pursuits. The most frequently reported physical activities were walking, basketball, jogging or running, bicycling, and social dancing. Differences between groups were found in 11 physical activities and 3 sedentary pursuits. Participation rates were higher in African American girls (p < or = .001) for social dancing, basketball, watching television, and church attendance but lower in calisthenics, ballet and other dance, jogging or running, rollerblading, soccer, softball or baseball, using an exercise machine, swimming, and homework. Cultural differences of groups should be considered when planning interventions to promote physical activity. 相似文献
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Rod K. Dishman 《Research quarterly for exercise and sport》2013,84(2):286-298
Abstract Response distortion is an acknowledged concomitant variable in psychometric research. Although the influence of response bias on the Estimation scale of the Physical Estimation and Attraction Scales (PEAS) has previously been considered for adolescent males, experimental evidence concerning the sensitivity of the adult versions of both the Attraction and Estimation scales to “faking” has not been provided. To determine this sensitivity, adult versions of the PEAS were administered to male and female undergraduates (N = 122). Subjects were randomly assigned to one of three groups and received either “fake bad,” “fake good,” or standard instructional sets. Results generally supported the view that the total score on each of the Attraction and Estimation scales is relatively insensitive to attempts to “fake good.” However, attempts to “fake bad” consistently resulted in a significant decrease (p < .01) in both Attraction and Estimation scores as compared to a standard control group. These findings suggest the need for a criterion to detect suspected “fake bad” Attraction and Estimation responses and possibly a “fake good” Attraction response. Statistical procedures for determining test bias indicated that specific PEAS items discriminated between the experimental and control groups, and these items were incorporated into embedded scales for the detection of a distorted PEAS response. Evidence for the predictive validity of these “fake bad” and “fake good” scales was provided. 相似文献
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Calls to strengthen education in science, technology, engineering, and mathematics (STEM) are underscored by employment trends and the importance of STEM innovation for the economy. The Study of Mathematically Precocious Youth (SMPY) has been tracking over 5,000 talented individuals longitudinally for 40 years, throwing light on critical questions in talent identification and development in STEM. SMPY includes individuals identified in 7th/8th grade as in the top 1% or higher in mathematical or verbal ability, and a comparison group identified as top STEM graduate students. SMPY findings cover the educational and occupational attainments of participants, including a large percentage earning a degree or pursuing high powered careers in STEM; gender differences; the extent to which high school experiences, abilities, and interests predict later outcomes; and subsequent creative production. Mathematical reasoning ability as measured by standardized tests is a reliable predictor for later math/science engagement and achievement in adulthood, and spatial ability adds predictive value. Exposure to appropriate educational opportunities do correlate with career achievement and creative production. SMPY researchers have concluded that potential future STEM innovators can be identified early and that educational interventions can increase their chances of success. 相似文献
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The article processing charge (APC) is currently the primary method of funding professionally published open access (OA) peer‐reviewed journals. The pricing principles of 77 OA publishers publishing over 1,000 journals using APCs were studied and classified. The most commonly used pricing method is a single fixed fee, which can either be the same for all of a publisher's journals or individually determined for each journal. Fees are usually only levied for publication of accepted papers, but there are some journals that also charge submission fees. Instead of fixed prices, many publishers charge by the page or have multi‐tiered fees depending on the length of articles. The country of origin of the author can also influence the pricing, in order to facilitate publishing for authors from developing countries. 相似文献
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Rod K. Dishman 《Quest (Human Kinetics)》2013,65(2):166-180
The association between vigorous exercise and certain aspects of mental health is well documented. Explanations for this relationship are not well understood, however, and recent developments in sport psychology suggest a renewed interest in health-related topics. Paradoxically, the more fundamental or prerequisite issue of exercise adherence has received little attention from a psychological perspective. Moreover, the research related to adherence has tended ro be atheoretical and unsystematic. The following discussion is designed to reinforce the significance of understanding influences on habitual exercise behavior and to characterize the nature of previous research in this area. An attempt is also made to provide some heuristic advantages which may facilitate future study of the exercise adherence question at both basic and applied levels. 相似文献
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