Displaying 1 result from an estimated 1 matches for "pschometric".
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psychometric
2002 Jun 20
1
Psychometric curves, two altnerative force choice, glm, and budbworms
Dear R-Listers,
to measure the psychometric curve of pitch discrimination, one sequentially
presents two tones of slightly different pitch to an observer (animal will
do), and asks "which is higher". The pschometric curve is the fraction of
correct responses plotted against the pitch difference. It passes through
50% (pure guessing) at zero and normally approaches 100% at large
difference.
To compare two psychometric curves, the conventional way is to fit two
logistic curves and compare the 75% correct "t...