Related Experiment Video
Updated: Aug 14, 2026

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
Published on: March 1, 2022
A comparison of statistical infrequency and subjective judgment as criteria in the measurement of originality
1Department of Educational Psychology, University of Southern California, Los Angeles 90007, USA.
Abstract:
The Alternate Uses test was administered to a sample of 60 college students. Three different criteria of originality were used in scoring: subjective judgment, statistical infrequency, and random numbers. Correlations among the three methods exceeded .67 (p < .01). The explanation for this finding is that the originality scores are strongly influenced by the number of responses (i.e., ideational fluency). Because the total originality score is based on a sum of the originality weightings for each response, individuals who give many responses are more likely to get high originality scores. Further analysis demonstrated that the subjective and statistical infrequency scoring techniques are not correlated when ideational fluency is controlled. Implications for the measurement of originality are discussed.
Related Concept Videos
Statistical Analysis: Overview
One of the most commonly used statistical quantifiers is the mean, which is the ratio between the sum of the numerical values of all results and the...
Detection of Gross Error: The Q Test
Quantifying and Rejecting Outliers: The Grubbs Test
Identifying Statistically Significant Differences: The F-Test
Comparing Experimental Results: Student's t-Test
Unusual Results
According to the range rule of thumb, any value above or below two standard deviations, 2σ from the mean, μ is considered unusual.
Maximum unusual value = μ + 2σ
Minimum unusual value...

