Abstract:
The purpose of this thesis was to compare attitude score on product evaluation between high and low self monitoring persons (HSM, LSM) who received messages from different source variable and argument quality in advertisement. One hundred and twenty eight students from Chulalongkorn University, sixty four HSM and sixty four LSM students, were randomly assigned equally to each of four conditions: attractive model and strong argument, attractive model and weak argument, expert model and strong argument, and expert model and weak argument. The instruments were: a) self monitoring scale developed by Nittaya Rattanapichit (1990), based on Mark Snyders theory (1987) b) eight advertisements with different source variable and argument quality and c) semantic differential product evaluation scale. The results show, as predicted, that: 1. HSM persons who received strong argument from attractive model evaluate the product significantly more positive than HSM persons who received weak argument from attractive model (p<.01). 2. HSM persons who received strong argument from expert model do not evaluate the product differently from HSM persons who received weak argument from expert model.3. LSM persons who received strong argument from expert model evaluate the product significantly more positive than LSM persons who received weak argument from expert model (p<.01). 4. LSM persons who received strong argument from attractive model do not evaluate the product differently from LSM persons who received weak argument from attractive model.