Construction of the achievement motivation scale for the study
Abstract
The construction and the psychometric analysis of a Scale of Motivation of Achievement for the study (EMLPE) was carried out, based on the theoretical constructs of Weiner (1989) on the motivations and atributions that people make to explain the causes of behaviors and events of reality. The sample was of 517 applicants to the Universidad Continental , men and women from 18 to 49 years of age, residing in the departments of Junín, Lima, Arequipa and the constitutional province of Callao, among others; for this the initial scale of 20 items was applied via internet and after the analysis of reliability with the Crombach alpha (0,73) and the empirical validity of the total ítem through the corrected Pearson`s r with values greater than 0,20, there were 14 items that were grouped into 3 factors throught the factors analysis of varimax rotation. The results obtained show that although expert judgment, it has adequate psychometric properties of reliability and validity. The scale has good internal consistency, since Crombach´s alpha exceeds the minium recommended criterion of 0,70. The 14 definitive ítems present a corrected Pearson r with values esqual to or greater than 0,20, which confirms the empirical validity of the scale test ítem. The factor analysis with Varimax rotation of the scale and the internal consistency of the scale reflect that the 14 items are adequate indicators of the construct with factor loads greater than 0,40.
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