SOME PITFALLS IN ADAPTIVE TESTING . COMMENTS ON TEMPORAL INTEGRATION AND PERIODICITY PITCH

Campbell and Counter (1969) measured “thresholds” for various short durations of low frequency sinusoidal signals. The adaptive psychophysical procedure they used is shown to yield uninterpretable results; values they report can represent a wide range of performance levels. In this note, we take Campbell's and Counter's study as an example of the methodological traps in seemingly straightforward testing methods. © 1969, Acoustical Society of America. All rights reserved.