Find over 25,000 psychological definitions


ethnic identity

an individual’s sense of being a person who is defined, in part, by membership in a specific ethnic group. This sense is usually considered to be a complex construct involving shared social, cultural, linguistic, religious, and often racial factors but identical with none of them.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

March 2nd 2024

ascertainment bias

ascertainment bias

error in selecting individuals or units for a sample, such that those units selected are not representative of the relevant population. For example, a medical researcher who studies a sample of patients that omits certain types of people who have the disorder of interest is likely to obtain results having an ascertainment bias. The term is often preferred over sampling bias in clinical contexts.