Results from different methods of measuring the autokinetic phenomenon are not comparable. The present study presents results of a factor analysis of 5 response measures of autokinetic movement under the conditions of a moving pinpoint of light and of a stationary light. A 3 principal-factor structure of the 5 measures was obtained which highlights the importance of procedural differences between tracing methods and timed-event recording. The results give empirical evidence for the paradoxical fact that some Ss experience the light as moving without the light's spatial displacement.
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