| Abstract [eng] |
Assessment of human cognitive functioning is an important part of activity of practician psychologist as well as researcher. Despite of huge variety of standardized reliable and valid methods around the world, in the meantime we have only several of them here in Lithuania. They are intelligence tests for children – WISC-III and Raven’s Coloured Progressive Matrices. Not standardized methods for evaluating adults cognitive functions are in common use. 10 words method and J.Jacobs (Forward and backward repetition of digital span) method for memory research and Kraepelin method for attention research are notably popular. IDA method for vocational features measurement and MELBA documentation tool are used in Valakupiai Rehabilitation Center. WASI (Wechsler Abbreviated Intelligence Scale, 1999) and AFES (Functioning Efficiency Scale, 2006) as objective and subjective evaluation methods are on standardization process today in Lithuania. Our purpose of the present study was to examine the client group (N=32) of rehabilitation center and to find out the relations between indices of cognitive functioning while using various assessment tools – objective methods (WASI, Kraepelin, 10 words, J.Jacobs methods) and subjective (AFES), semi-subjective methods (IDA, MELBA). An evaluation of psychometric properties of all those methods is also on our purpose. The presented data provide support for the hypothesis that correlations between subjective and objective indices of cognitive functioning are statistically significant. We also revealed the fact that stronger correlations exist among objective, semi-subjective methods (WASI, Kraepelin, 10 words, J.Jacobs, IDA, MELBA methods) and weaker correlations among subjective and objective methods (AFES and others). An evaluation of Crombach α coefficients was made: WASI – 0,74, 10 words – 0,93, J.Jacobs – 0,84; Kraepelin – 0,70, IDA – 0,70, MELBA – 0,65. The reliability of AFES method is quite ambivalent: Crombach α is 0,87, but percentage coefficients of variation (CVP) to all variables of the method are more than 100%, zero dispersion of even four AFES variables is also significant sign. Finally, it is important to notice that there was quite small sample of participants in our study, what means that it is required more comprehensive studies for definitive decision making on psychometric properties of methods in the future. |
