“…Subjective measures are generally questionnaires completed by supervisors, peers or the individuals themselves (self-rating) (Sawyerr et al, 2009;Skyrme et al, 2005) whereas objective measures are "direct measures of countable behaviours or outcomes" (Bommer, Johnson, Rich, Podsakoff & Mackenzie, 1995:588) which typically include sales volume, productivity or revenue (Barrick et al, 2001). Other objective performance measures have been based on sales per hour, talk time, adjusted sign-on time and wrap time (Hakstian et al, 1997), amount of calls completed in a certain time frame (Fellows & Mawhinney, 1997), number of successes divided by sum of successes and failures (Skryme et al, 2005), thoroughness of agent in providing information and swiftness and skill of responding to customer problems (Sawyerr et al, 2009). Other authors argue that customer service plays a major role in their job description and that dealing with customer queries takes up a large portion of their work (Conte & Gintoft, 2005).…”