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Related Experiment Video

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Training Synesthetic Letter-color Associations by Reading in Color

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What Makes It Look Like That? Prototypicality and Color Diagnosticity for the Rorschach.

Marzia Di Girolamo¹, Ruam P F A Pimentel², Andrea Corgiat-Loia¹

¹University of Turin, Italy.

|May 19, 2026

Summary

This study on the Rorschach Performance Assessment System (R-PAS) found that color-object associations can be ambiguous, impacting personality assessment. Standardized guidelines and training are crucial to reduce subjective biases in coding Rorschach responses.

Keywords:

Rorschach cluster analysis color diagnosticity prototypicality

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Area of Science:

Psychological assessment
Personality psychology
Psychometrics

Background:

The Rorschach test is a widely used tool for assessing personality.
Determinants in Rorschach coding can be subjective, leading to ambiguities.
The Rorschach Performance Assessment System (R-PAS) aims to standardize administration.

Purpose of the Study:

To investigate prototypicality and color diagnosticity within the R-PAS.
To examine how color-object associations influence Rorschach test administration.
To identify potential sources of subjective bias in Rorschach coding.

Main Methods:

Administered a questionnaire to 587 nonclinical participants.
Examined color-object associations through object description, color-item association, and object-color selection tasks.
Analyzed responses using hierarchical cluster analysis.

Main Results:

Certain objects showed high prototypicality with specific colors.
Other objects displayed more ambiguous color associations.
Color-object associations varied among participants.

Conclusions:

Color-object associations can introduce ambiguity in Rorschach interpretation.
Standardized guidelines and administration training are essential for R-PAS.
Mitigating subjective bias is key for accurate personality assessment.