Graphology, Disciplines
Standing
Concerns Replication Status
Currently States A meta-analytic review by Gershon Ben-Shakhar and colleagues found graphologists' apparent predictive validity tracked the informational content of what was written rather than the physical form of the handwriting; on neutral, content-free text their accuracy was no better than chance, and no better than untrained laypeople.
Gershon Ben-Shakhar, Maya Bar-Hillel, Yoram Bilu, Edor Ben-Abba and Anat Flug published The Predictive Validity of Graphological Inferences: A Meta-Analytic Approach in Personality and Individual Differences in 1986. The method was meta-analysis, pooling multiple published studies testing graphologists' ability to infer personality traits from handwriting, comparing performance on samples where the writer had copied a fixed, content-free text against samples where the writer had written freely. The review found graphologists' apparent accuracy tracked the informational content of what was written rather than the physical form of the handwriting; on the neutral, content-free text their accuracy was no better than chance, and no better than untrained laypeople. Because the effect disappears exactly when informational content is controlled for, the review treats handwriting form itself as carrying no diagnostic signal.
Source The Predictive Validity of Graphological Inferences: A Meta-Analytic Approach, Gershon Ben-Shakhar, Maya Bar-Hillel, Yoram Bilu, Edor Ben-Abba, Anat Flug