Protocol analysis is a psychological research method that elicits verbal reports from research participants. Protocol analysis is used to study thinking in cognitive psychology (Crutcher, 1994), cognitive science (Simon & Kaplan, 1989), and behavior analysis (Austin & Delaney, 1998). It has found further application in the design of surveys and interviews (Sudman, Bradburn & Schwarz, 1996), usability testing (Henderson, Smith, Podd, & Varela-Alvarez, 1995), educational psychology (Pressley & Afflerbach 1995; Renkl, 1997) and design research (Gero & McNeill 1998). See also Content analysis Partial concurrent thinking aloud Think aloud protocol References Austin, J., & Delaney, P. F. (1998). Protocol analysis as a tool for behavior analysis. Analysis of Verbal Behavior, 15, 41–56. Crutcher, R. J. (1994). Telling what we know: The use of verbal report methodologies in psychological research. Psychological Science, 5, 241–244. Ericsson, K. A., & Crutcher, R. J. (1991). Introspection and verbal reports on cognitive processes - two approaches to the study of thought processes: A response to Howe. New Ideas in Psychology, 9, 57–71. Ericsson, K. A., & Simon, H. A. (1993). Protocol analysis: Verbal reports as data. MIT Press, Cambridge, MA. Gero, J. S. & McNeill, T (1998) An approach to the analysis of design protocols, Design Studies 19(1): 21-61. Pressley, M., & Afflerbach, P. (1995). Verbal protocols of reading: The nature of constructively responsive reading. Hillsdale, NJ, USA: Erlbaum. Renkl, A. (1997). Learning from worked-out examples: A study on individual differences. Cognitive Science, 21, 1–29. Sudman, S., Bradburn, N. M., & Schwarz, N. (Eds.)(1996). Thinking about answers: The application of cognitive processes to survey methodology. San Francisco, CA, USA: Jossey-Bass. External links protocol analysis : A tool for facilitating verbal protocol analysis in English, German, Spanish, or Chinese. Psychological methodology Cognitive science