Assess means to evaluate or measure the effectiveness, value, or quality of something. In psychology, it refers to gathering information and making judgments about a person's behavior, thoughts, feelings, or abilities.
Related terms
Measurement: The process of assigning numbers or scores to behaviors, thoughts, or feelings for assessment purposes.
Evaluation: The systematic process of determining the worth or significance of something based on predetermined criteria.
Validity: Refers to the accuracy and appropriateness of the conclusions made based on an assessment tool or method.