Inventory of adjectives for assessment of five general personality dimensions

The goal of the study is to document assembling of the Inventory of adjecti ves (IPJ), which is designated for screening of the five personality dimens ions in Czech language, and to introduce its psychometric properties. The b asis for the selection of the Big Five markers was formed by the results of a representative taxonomy of Czech personality-relevant adjectives and by results of analysis of inventories containing Big Five markers which were t ranslated to Czech language from American English. On the basis of results of these two studies, 60 pairs of contradictory adjectives were chosen (12 for each dimension) which represent the five-factor personality structure i n Czech language. Having determined the factor structure of self-ratings on scales composed from these adjectives, revision of some items of IPJ was c arried out and a revised form IPJ-R was compiled. The reliability of IPJ sc ales ranges between .81 (Intellect/Openness) and .92 (Conscientiousness), a nd between .76 (Intellect/Openness) and .90 (Extraversion) in the revised v ersion. The reliability of IPJ-R was lower in comparison with the original inventory IPJ and the amount of items with relevant factor load being lower than .30 increased from one to four. In IPJ-R, however, the number of item s decreased which attained required load on relevant factor but at the same time attained factor load .30 or higher on other factors as well. Correlat ion between factor scores of IPJ and NEO-FFI was calculated, the values of convergent validity ranging between .71 (Conscientiousness) and .44 (Intell ect/Openness). Psychometric properties of the revised version did not impro ve that can probably be explained by the low age of respondents who rated t hemselves on the scales of IPJ-R (M = 17 years). It will therefore be neces sary to further verify whether the inventory constitutes a suitable instrum ent also for assessment of personality structure of adolescents.