Studies in Expressive Movement

The book's central claim is that expressive movement—the distinctive, individualized aspects of gesture, gait, and handwriting—exhibits measurable consistency within persons across different motor tasks, and that this consistency exceeds what chance would predict . Allport and Vernon argue this provides empirical support for the unity of personality: if expressive acts are organized and self-consistent, the personality producing them is likely organized too. What the book rejects is the behaviorist assumption that motor acts are merely specific habits with no cross-situational coherence. It also rejects the notion that personality can be adequately studied only through inner traits or test scores; expression is presented as a more direct, observable level of personality data .

The authors recorded twenty-five male subjects on diverse tasks measuring speed, pressure, area, and style of movement, then intercorrelated the measures. They found that consistency across different expressive acts exceeded chance, and they identified three group factors: areal, centrifugal, and emphatic . However, they found no single general factor of individual consistency—expression is patterned but not unified by one underlying trait . The evidence was modest: a contemporary review noted that raw correlations were small and the authors relied on correction formulas to boost them to acceptable levels, cautioning that more reliable original measures were needed before strong conclusions could be drawn .

Part B of the book, supplemented by a chapter from Edwin Powers, subjected graphological claims to experimental scrutiny. Allport and Vernon were cautiously sympathetic: while acknowledging that graphological analysis barely exceeded chance in some tests, they argued the aggregate results suggested handwriting bears an appreciable relation to personality and that the experimental conditions were too crude to dismiss the field outright . This stance was controversial. Mainstream American psychologists largely regarded graphology as a pseudo-science, and a reviewer noted that Allport, "by virtue of his name and status," had gained for this "black sheep" of characterology at least a reconsideration . The book's tolerance was methodological, not credulous.

The book is best understood as an empirical foundation for Allport's lifelong argument that personality has real internal organization and consistency. The introduction explicitly frames expression as one of three levels of personality data, alongside inner traits and the impressions of observers, and argues that studying expression directly is the most natural approach to personality . This commitment to the individual's patterned unity, observable in behavior without reduction to a single trait, anticipates his later critiques of trait atomism and his development of the proprium and functional autonomy. The book also demonstrates his early willingness to engage controversial topics—graphology—with experimental rigor rather than dismissal, a posture that recurs in his later work on prejudice and rumor.

Reviewers were respectful but pointed. One noted that the authors made "no very great claims for the theoretical conclusions drawn," treating the work as exploratory . The most substantive critique came from a reviewer who observed that the data did not meet the statistical conditions for the correction formulas the authors used, that raw coefficients were small, and that many psychologists would interpret the same data as evidence for specificity of function rather than consistency . Another reviewer asked the pointed question: even granting that expressive movement is "intricately woven with the deep-lying determinants of conduct," are we any nearer an objective measure of personality ? The book opened a research path without delivering a validated assessment tool.

It is primarily historical, but historically important. The specific experimental findings have not been robustly replicated: only two studies attempted replication, one of which confirmed the factor structure while the other could neither confirm nor disconfirm it, and the personological study of expressive movement ceased to be a major concern in mainstream psychology after the 1940s . However, the book remains valuable as a document of Allport's early effort to ground personality theory in observable behavior rather than speculative inner dispositions. It also provides a case study in how a major psychologist engaged a marginalized field—graphology—with experimental methods, and its qualified conclusions about the limits of that engagement are more instructive than either credulity or blanket dismissal would be.