The validation of a performance-based assessment battery

Abstract

Legislative pressures are being brought to bear on South African employers to demonstrate that occupational assessment is scientifically valid and culturefair. The development of valid and reliable performance-based assessment tools will enable employers to meet these requirements. The general aim of this research was to validate a performance-based assessment battery for the placement of sales representatives. A literature survey examined alternative assessment measures and methods of performance measurement, leading to the conclusion that the combination of the work sample as a predictor measure and the managerial rating of performance as a criterion measure offer a practical and cost-effective assessment process to the sales manager. The empirical study involved 54 sales persons working for the Commercial division of an oil marketing company, selling products and services to the commercial and industrial market. By means of the empirical study, a significant correlation was found between performance of sales representatives in terms of the performance-based assessment battery for the entry level of the career ladder and their behaviour in the field as measured by the managerial performance rating instrument. The limitations of the sample, however, prevent the results from being generalised to other organisations.