Modern Psychological Studies
University of Tennessee at Chattanooga
Place of Publication
The effect of question phrasing on speed estimation is assessed by means of two rating systems, a verbal rating scale (VRS) and a visual analogue scale (VAS). Subjects were asked to watch a short video depicting the scene of a car accident and then answer a short memory test concerning the video. The test contained the question, "About how fast was the car going when the crash occurred?" Other subjects received the word "fender-bender" or "impact" in place of the word "crash". Subjects were asked to estimate speed using either a verbal rating or a visual analogue scale. Results indicated that using a visual analogue scale elicited a higher speed estimate than using a verbal rating measure. The highest speed estimate was given with the word crash and the visual analogue scale, p<.05. No significant difference was found due to the phrasing of the question alone.
BF1 .M63 v. 8 no. 1 2001
Winter, Melissa M. and Marmolejo, Gloria
"Influence of question-phrasing and response-scale in speed estimation of witnessed accidents,"
Modern Psychological Studies: Vol. 8
, Article 5.
Available at: http://scholar.utc.edu/mps/vol8/iss1/5