فهرست نشریات علمی دسترسی آزاد ایران

Background and AimThe concept of hopefulness in adolescents and its role in the health of this group are very important. Therefore, a valid and reliable tool to measure this concept is essential. This methodological study was performed to identify psychometric properties (validity and reliability) of “Hopefulness Scale for Adolescents” (HSA) in high school students of Tehran. Materials and MethodsIn this methodological research, 1918 girl and boy students from districts 3, 5, 9, 10 and 18 of Education Organization in Tehran were selected by random cluster sampling method. The subjects were asked to complete the scale along with a demographic questionnaire and Self-efficacy scale of Sherer et al. as a criterion scale. Construct and criterion validities were identified for the validity of the scale and internal consistencies as well as test-retest were measured for its reliability. Data were analyzed by calculation of factor analysis, coefficients of correlation and Cronbach’s alpha.  FindingsConstruct validity was measured by exploratory factor analysis and revealed 2 factors, namely, optimistic and pessimistic thinking toward future. Coefficient correlation (r) of scores between the scale and Self-efficacy scale of Sherer et al. was 0.588 (P