The Construct, Convergent and Divergent Validity, and Reliability of Three Optimism Scales among North American University Students.
Psychol Rep
; 124(3): 1412-1430, 2021 Jun.
Article
em En
| MEDLINE
| ID: mdl-32576093
ABSTRACT
The primary objective of this study is to compare the construct, convergent and divergent validity and the reliability of three optimism scales. The study relied on a nonprobability sample of 100 social work students at Western Michigan University in the United States (Seventy-nine percent of the sample were female, and 21% were male). The sample's mean age was 26.35 years, SD = 7.70. Sixty-nine percent (69%) of the respondents self-identified as White, and 31% self-identified as African American, Hispanic/Latino, multiethnic, Native American or Asian American. The study used confirmatory factor and multiple regression analyses (CFA and MRA). The findings show that the Life Orientation Test-Revised (LOT-R) and the Personal Optimism Scale (POS) were supported by three indicators of goodness of fit, while the Brief Interactive Optimism Scale-Garcia (BIOS-G) was supported by eight. The LOT-R showed no acceptable internal consistency indicators, but the POS and the BIOS-G showed several good internal consistency indicators. Correlations of all of these scales with the Physical Well-being Scale-Garcia (PWS-G) ranged from r (100) = .303, p = .002 to r (100) = .439, p = .000. The three scales had divergent validity because their scores did not differ by gender (LOT-R t(100) = -.885, p = .383; POS t(100) = -.263, p = .794; BIOS-G t(100) = -.840, p = .407). The findings suggest the advisability of recommending the BIOS-G, which is short and easy to use and understand.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Psicometria
/
Estudantes
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Universidades
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Otimismo
Tipo de estudo:
Prognostic_studies
Limite:
Adult
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Female
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Humans
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Male
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Psychol Rep
Ano de publicação:
2021
Tipo de documento:
Article