He also discussed personality development, psychopathology, psychotherapy, syntality , and specification equation . The evaluation of Cattell's theory has been largely positive. In addition to the above mentioned theorists, a number of the current mini-theories warrant mention. It is accepted that examining naturally occurring relationships among several variables without manipulating any of them offers a means of describing relationships without disruption. While even a perfect correlation is not evidence for causation, using the cross lagged correlational procedure , data involving degrees of relationships can be interpreted to suggest predictions.
People consistently regard themselves more positively and less negatively than they regard others.
When an individual believes he perceives a relationship between variables, he will tend to see a relationship even in the absence of a relationship. This phenomena, the illusionary correlation effect , has not gone unresearched. A reference page of major suggested readings is provided.