Lecture 8 in the class COMU346 at Caledonian University.
This lecture looks at Expert Evaluation techniques including Cognitive Walkthrough and Heuristic Evaluation
17. Think Aloud/Online Self Report “ Think aloud technique is pretty much what it sounds like. You ask someone to do a task, and to think aloud about what they are doing while they are doing it.” - Rugg, 2007
18. “ The basic concept is simple: you tell the respondent what the task is, and ask them to think aloud while doing it. If they are silent for more than a set length of time (e.g. five seconds) then you use a prearranged prompt to get them talking again” - Rugg, 2007 “ Could you tell me what you’re thinking about now?” “ Are you looking at the background of the picture?” “ Could you tell me what you’re thinking about now?” “ Are you looking at the background of the picture?”
19. “… if you have to transcribe the data, then this can be very time-consuming (in the order of ten hours of transcription per hour of tape, depending on how good your typing is and how loquacious your respondents are).” - Rugg, 2007
20. “ the convention on transcripts is to use one full stop per second of silence (so “….” shows four seconds of silence). “Um” and “er” sounds are also worth noting, for the same reason, particularly when the respondent is otherwise articulate.” - Rugg, 2007