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Psychometric properties of optimism and pessimism: results from the Girls' Health Enrichment Multisite Studies.
Prev Med 2004; 38 Suppl:S69-77PM

Abstract

Background. This study investigated the relationships among optimism, pessimism, physical activity, and dietary behaviors among 8- to 10-year-old African-American girls in the Girls' Health Enrichment Multisite Studies (GEMS). Methods. Ninety-two girls were randomly assigned to a 12-week physical activity and diet intervention or comparison group and completed psychosocial assessments including the Youth Life Orientation Test (YLOT) of optimism and pessimism, physical performance self-concept, physical activity self-efficacy, physical activity outcome expectancies, and physical activity and sedentary preferences. Also, preferences for bottled water and sweetened beverages were assessed. Physical activity and dietary intake were assessed by self-report and parent-report at baseline and follow-up. Also, physical activity was objectively assessed by wearing an accelerometer for 3 days. The psychometric properties of the optimism-pessimism subscales were analyzed. Results. The measures of optimism and pessimism in children were reliable (r = 0.75-0.82). In the multiple regression analyses without the intervention interaction terms, pessimism was positively and significantly related to increases in MET-adjusted usual activity (P = 0.008) and sedentary behaviors (P = 0.0004). Additionally, a negative (P = 0.026) pessimism by intervention interaction term for MET-adjusted usual activity was found such that the intervention group had a lower change in physical activity per unit increase in pessimism compared to the control group.

CONCLUSIONS

Among 8- to 10-year-old African-American girls, pessimism was related to increased sedentary behaviors and usual activity. Previous studies have reported relationships between optimism and health-compromising behaviors. This study found that pessimism may positively or negatively influence efforts to increase health-promoting behaviors. Future research should confirm and clarify the meaning of these findings.

Authors+Show Affiliations

Center for Health Promotion and Prevention Research (CHPPR), School of Public Health, University of Texas Health Science Center at Houston, 77030, USA. wtaylor@sph.uth.tmc.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Evaluation Study
Journal Article
Randomized Controlled Trial
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

15072861

Citation

Taylor, Wendell C., et al. "Psychometric Properties of Optimism and Pessimism: Results From the Girls' Health Enrichment Multisite Studies." Preventive Medicine, vol. 38 Suppl, 2004, pp. S69-77.
Taylor WC, Baranowski T, Klesges LM, et al. Psychometric properties of optimism and pessimism: results from the Girls' Health Enrichment Multisite Studies. Prev Med. 2004;38 Suppl:S69-77.
Taylor, W. C., Baranowski, T., Klesges, L. M., Ey, S., Pratt, C., Rochon, J., & Zhou, A. (2004). Psychometric properties of optimism and pessimism: results from the Girls' Health Enrichment Multisite Studies. Preventive Medicine, 38 Suppl, pp. S69-77.
Taylor WC, et al. Psychometric Properties of Optimism and Pessimism: Results From the Girls' Health Enrichment Multisite Studies. Prev Med. 2004;38 Suppl:S69-77. PubMed PMID: 15072861.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Psychometric properties of optimism and pessimism: results from the Girls' Health Enrichment Multisite Studies. AU - Taylor,Wendell C, AU - Baranowski,Tom, AU - Klesges,Lisa M, AU - Ey,Sydney, AU - Pratt,Charlotte, AU - Rochon,Jim, AU - Zhou,Ainong, PY - 2004/4/10/pubmed PY - 2004/7/23/medline PY - 2004/4/10/entrez SP - S69 EP - 77 JF - Preventive medicine JO - Prev Med VL - 38 Suppl N2 - UNLABELLED: Background. This study investigated the relationships among optimism, pessimism, physical activity, and dietary behaviors among 8- to 10-year-old African-American girls in the Girls' Health Enrichment Multisite Studies (GEMS). Methods. Ninety-two girls were randomly assigned to a 12-week physical activity and diet intervention or comparison group and completed psychosocial assessments including the Youth Life Orientation Test (YLOT) of optimism and pessimism, physical performance self-concept, physical activity self-efficacy, physical activity outcome expectancies, and physical activity and sedentary preferences. Also, preferences for bottled water and sweetened beverages were assessed. Physical activity and dietary intake were assessed by self-report and parent-report at baseline and follow-up. Also, physical activity was objectively assessed by wearing an accelerometer for 3 days. The psychometric properties of the optimism-pessimism subscales were analyzed. Results. The measures of optimism and pessimism in children were reliable (r = 0.75-0.82). In the multiple regression analyses without the intervention interaction terms, pessimism was positively and significantly related to increases in MET-adjusted usual activity (P = 0.008) and sedentary behaviors (P = 0.0004). Additionally, a negative (P = 0.026) pessimism by intervention interaction term for MET-adjusted usual activity was found such that the intervention group had a lower change in physical activity per unit increase in pessimism compared to the control group. CONCLUSIONS: Among 8- to 10-year-old African-American girls, pessimism was related to increased sedentary behaviors and usual activity. Previous studies have reported relationships between optimism and health-compromising behaviors. This study found that pessimism may positively or negatively influence efforts to increase health-promoting behaviors. Future research should confirm and clarify the meaning of these findings. SN - 0091-7435 UR - https://www.unboundmedicine.com/medline/citation/15072861/Psychometric_properties_of_optimism_and_pessimism:_results_from_the_Girls'_Health_Enrichment_Multisite_Studies_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0091743504000507 DB - PRIME DP - Unbound Medicine ER -