Psychological assessment typically involves a comprehensive assessment of an individual. Psychological assessment is a process that incorporates information from multiple sources, such as tests of normal and abnormal personality, tests of ability or intelligence, tests of interests or attitudes, as well as information from personal interviews. Information is also collected from records or from integrating information with parents, teachers, or previous therapists or physicians. A psychological test is one mean of data used within the assessment; typically more than one test is used. Psychologists may complete some level of assessment when providing services to clients by utilizing simple check lists to assess some traits or symptoms. Psychological assessment is a detailed, in-depth process.