Jacob Cohen (statistician)

Jacob Cohen
Born(1923-04-20)April 20, 1923
DiedJanuary 20, 1998(1998-01-20) (aged 74)
NationalityAmerican
Alma materNew York University
Known forCohen's kappa, Cohen's d, and Cohen's h
Scientific career
FieldsPsychology
Statistics
ThesisA comparative analysis of the factors underlying intelligence test performance of different neuropsychiatric groups (1950)

Jacob Cohen (April 20, 1923 – January 20, 1998) was an American psychologist and statistician best known for his work on statistical power and effect size, which helped to lay foundations for current statistical meta-analysis and the methods of estimation statistics. He gave his name to such measures as Cohen's kappa, Cohen's d, and Cohen's h.