Speech anxiety as a multiplicative function of size of audience and social desirability

Social impact theory, especially the constructs of importance and number of people present, have been useful in explaining the magnitude of speech anxiety experienced by speakers. In the present study, Crowne and Marlowe's social desirability construct was evaluated as an operational definition of importance. A multiple regression analysis indicated that speech anxiety is best explained by a multiplicative rather than a simple linear model, using size of audience and social desirability as independent variables for 50 speakers.