Validation of a scale to evaluate the performance of the personnel of a technology services company

Abstract

According to the theory, every instrument that is designed must be subjected to statistical tests that ensure that it measures what it must measure (validity) and has an adequate internal consistency (reliability), over all those used to evaluate personnel in companies of the aerospace sector, as is the company under study. However, in this company this instrument has not been validated, it was only adapted from a standard and adjusted by experience. For this reason, the aim is to statistically validate the evaluation instrument currently used by the company, in order to obtain a reliable and valid measurement system.The instrument was applied 354 times to evaluate 64% of the employees of the company. Statistical software was used to perform the reliability analysis through the calculation of Cronbach's alpha, which was good (0.942). Likewise, an acceptable KMO (0.937) and a level of significance of Bartlett's sphericity test of 0 were obtained, data that serve to confirm that factor analysis is worthwhile. The latter generated the matrix with five rotated factors that explain 56.9% of the initial variance. In this way, the following were established as criteria to evaluate: interpersonal relationships, skills & knowledge, communication & English language proficiency, assistance and values, which encompassed the items that have a better correlation.