Confronting structures of values: a comparative study between PVQ-40 and PVQ-21

Several measurement scales have been developed in order to translate constructs and their value structure. Among these are the Schwartz's Values Survey (SVS) and the Portrait Values Questionnaire with 40 and 21 items, respectively (PVQ-40 and PVQ-21). The two forms of the questionnaire allow a wider use because they have showed fewer and less abstract items compared to the SVS, however, there have not been found studies that compare both instruments regarding their value structure. Therefore, this is the objective of the present study. A sample of 217 university students answered the PVQ-40 and the PVQ-21 at two different moments in time. The data were analyzed by Confirmatory Multidimensional Scaling. The results indicate that both scales are equivalent in terms of bidimensional and bipolar value structures, however, differences were found with regard to the spatial distribution of values measuring Stimulation, Self-Direction, Power and Achievement.

Scale; basic values; PVQ-40; PVQ-21; Confirmatory Multidimensional Scaling