Final answer:
James McKeen Cattell, an American psychologist, made significant contributions to the psychological sciences through his work in industrial-organizational psychology and by founding the Psychological Corporation. His mentorship at Columbia University furthered advances in various psychology subfields, including clinical psychology.
Step-by-step explanation:
Contributions of James McKeen Cattell to Clinical Psychology
The history of clinical psychology acknowledges several key individuals who've contributed significantly to its development. James McKeen Cattell (1860-1944), an American psychologist, had a profound impact on psychological science and industrial-organizational psychology.
Cattell was a student of Wilhelm Wundt and contributed to the field of psychology by founding the Psychological Corporation. While Cattell's work was not directly within clinical psychology, his efforts in industrial psychology and the founding of a psychological consulting firm are a testament to his influence on the application of psychology in practical settings—a concept integral to clinical psychology.
In addition to his work in industrial psychology, Cattell influenced the field by mentoring students at Columbia University who continued to make advances in various subfields of psychology, including the clinical domain. Cattell's multidimensional approach set a precedent for how modern psychology understands the behavior and mental processes in both clinical and organizational contexts.