In this addendum, we present a measure of discrimination ability that is free of the downwardly biasing assumptions of previous discrimination measures. We discuss the magnitude of the bias in the previous measures, the reliability of all of the measures, intercorrelations among them, and their...

An early dismissal policy for unproductive recruiters is proposed. The policy is based on a bivariate stochastic model for productivity; this model considers both incidence of reporting a positive quantity of sales and the quantity per report. All recruiters are observed for a probational period;...

Frequency questions (“How many times did you do X in the last month?”) are often used to measure respondents' behavior rates. Under suitable assumptions, frequency data can be analyzed in the context of the Negative Binomial Distribution model. Recency questions (“How long ago did you last...

Researchers often test consumers' abilities to discriminate between two product formulations. Such tests are used in new product development, quality control, and competitive assessment. This paper investigates three paired comparison taste tests, each requiring a different judgment. These are:...