Development of a public service motivation measurement scale: Corroborating and extending Perry's measurement instrument

Despite the existence of multiple measurement instruments, measuring public service motivation still generates controversy. The most common cited measurement issues are the application of the measurement scale outside the United States, the dimensionality of public service motivation and the length of the original measurement scale. This article discusses these issues and evaluates a measurement instrument developed in a non-US environment, based upon empirical data. Although differences in items are noted, the factorial structure of the original measurement instrument remains in place. Nevertheless, there is some evidence that an additional dimension, "democratic governance'' could supplement the other existing measurement instruments.