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ERIC Number: ED310452
Record Type: Non-Journal
Publication Date: 1989-Aug
Pages: 23
Abstractor: N/A
Reference Count: N/A
Messages as Experimental Stimuli: Design, Analysis, and Inference.
Slater, Michael D.
The use of messages as experimental stimuli brings with it problems regarding the interpretability and generalizability of findings. Some psychologists and communication researchers have argued that message stimuli must be treated as random effects. A review of the literature examined data regarding experimental designs used in recent experimentation in the communication field, and appraised alternative uses of message stimuli with respect to interpretability and generalizability. Also studied were researchers' assumptions implicit in the use of random or fixed effect models, as well as the appropriateness of each approach in certain contexts. Findings suggest the treatment of messages as random effects when a variable has been operationalized by selecting several messages representative of values on that variable, but not when the variable has been operationalized by manipulating the message or messages themselves. (Two tables of data are included, and 16 references are attached.) (SR)
Publication Type: Speeches/Meeting Papers; Information Analyses
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A