Psychological Test:
A psychological test is a standardized measure of a person's behavior, personality traits, cognitive abilities, emotional functioning, or other psychological variables. These tests are administered and scored in a consistent manner to ensure reliability and validity of the results.

Chief Characteristics of Psychological Tests:

Standardization:
- Psychological tests are administered and scored in a consistent manner to ensure that the results are reliable and valid.
- Standardization involves using the same instructions, procedures, and scoring methods for all test takers.

Reliability:
- Reliability refers to the consistency of a test's results. A reliable test will produce similar results when administered multiple times to the same individual.
- Different types of reliability measures, such as test-retest reliability and inter-rater reliability, are used to assess the reliability of a psychological test.

Validity:
- Validity refers to the extent to which a test measures what it is intended to measure. A valid test accurately assesses the construct or behavior it is designed to measure.
- Different types of validity, such as content validity, criterion-related validity, and construct validity, are used to evaluate the validity of a psychological test.

Norms:
- Norms are established based on the performance of a representative sample of individuals who have taken the test. These norms provide a frame of reference for interpreting an individual's test scores.
- Norms help to compare an individual's performance on the test to that of a similar group of people.

Objectivity:
- Psychological tests are designed to minimize subjective bias in administration and scoring. Objectivity ensures that the results of the test are not influenced by the examiner's personal beliefs or opinions.
In conclusion, a psychological test is a standardized measure of psychological variables that possess characteristics such as standardization, reliability, validity, norms, and objectivity to ensure accurate and consistent assessment of individuals.