Eysenck is known for flawed research on counseling that showed little results. His research spurred new research that showed effectiveness of counseling.
Hans Eysenck was a German-British psychologist who made significant contributions to the field of psychology, particularly in the areas of personality and intelligence. Eysenck is best known for his work on the structure of personality and the development of the Eysenck Personality Questionnaire (EPQ), which is a widely used measure of personality.
Eysenck's theories of personality were based on the idea that personality is made up of three dimensions: extraversion-introversion, neuroticism, and psychoticism. He argued that these dimensions are relatively stable and can be used to predict an individual's behavior and mental health.
Eysenck's work on intelligence focused on the idea that intelligence is a unitary construct that can be measured by intelligence tests. He argued that intelligence is largely inherited and is a stable trait that does not change significantly over the course of an individual's lifetime.
Overall, Eysenck was a influential psychologist known for his work on the structure of personality and intelligence.