PMID- 32576093 OWN - NLM STAT- MEDLINE DCOM- 20210809 LR - 20210809 IS - 1558-691X (Electronic) IS - 0033-2941 (Linking) VI - 124 IP - 3 DP - 2021 Jun TI - The Construct, Convergent and Divergent Validity, and Reliability of Three Optimism Scales among North American University Students. PG - 1412-1430 LID - 10.1177/0033294120933144 [doi] AB - 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. FAU - Garcia Cadena, Cirilo H AU - Garcia Cadena CH AUID- ORCID: 0000-0001-6066-7745 AD - Universidad Autonoma de Nuevo Leon, Mexico. FAU - Diaz, Hector L AU - Diaz HL AD - 4175Western Michigan University, USA. FAU - Caycho-Rodriguez, Tomas AU - Caycho-Rodriguez T AUID- ORCID: 0000-0002-5349-7570 AD - 33220Universidad Privada del Norte, Peru. LA - eng PT - Journal Article DEP - 20200623 PL - United States TA - Psychol Rep JT - Psychological reports JID - 0376475 SB - IM MH - Adult MH - Factor Analysis, Statistical MH - Female MH - Humans MH - Male MH - Michigan MH - Optimism/*psychology MH - Psychometrics/*standards MH - Reproducibility of Results MH - Students/*psychology MH - *Universities OTO - NOTNLM OT - American university students OT - Reliability OT - construct validity OT - convergent validity OT - divergent validity OT - three optimism scales EDAT- 2020/06/25 06:00 MHDA- 2021/08/10 06:00 CRDT- 2020/06/25 06:00 PHST- 2020/06/25 06:00 [pubmed] PHST- 2021/08/10 06:00 [medline] PHST- 2020/06/25 06:00 [entrez] AID - 10.1177/0033294120933144 [doi] PST - ppublish SO - Psychol Rep. 2021 Jun;124(3):1412-1430. doi: 10.1177/0033294120933144. Epub 2020 Jun 23.