ADAPTÁCIA A ORIENTAČNÉ OVEROVANIE PSYCHOMETRICKÝCH CHARAKTERISTÍK TESTU ŽIVOTNEJ ORIENTÁCIE LOT-R.

Paper brings information about Slovak adaptation of Life Orientation Test (LOT-R). In this framework, both, factor structure of instrument and reliability and validity of LOT-R were examined. The data obtained from 226 high school students (119 boys, 107 girls) in the age range 16-19 years were put through two confirmatory factor analyses in order to test plausibility of one-factor versus two-factor model for LOT-R factor structure. Results showed that both models fulfill acceptably criteria for their confirmation as concurring factor representations of LOT-R structure. Although the two-factor model reproduced original data with a higher accuracy, this solution should be considered rather as an artifact of differently articulated items (positively and negatively) but holding semantics of the same quality. Very high correlation between both factors which was found in confirmatory analysis supports this issue, too. In second part of paper, results of reliability and validity examinations (based on the data received from the sample of 54 university students) are reported. Test- retest correlations show that LOT-R results are sufficiently stabile over time (rtt = 0.77 for three weeks span, rtt = 0.76 for two months span and rtt = 0.68 for three monhts span). Also internal consistency of the test was acceptable (Alpha coefficient = 0.73). Finally, correlations between LOT-R and four other instruments measuring subjective well-being, self-esteem, hope and anxiosity have offered support for convergent and discriminatory validity of the LOT-R as an instrument measuring dispositional optimism. [ABSTRACT FROM AUTHOR]