Tests such as the MMPI-2, in which a small sample of behavior is assessed to determine larger patterns, are examples of a. Cross-sectional tests b. Projective tests c. Achievement tests d. Self-report tests

Recognize that the MMPI-2 is a psychological test used in mental health fields to measure personality traits and psychopathology. It is based on the individual's own perceptions, emotions, and behaviors which are reported directly without an investigator's interpretations.

Analyzing the options for the correct answer: \na. Cross-sectional tests:These involve examining a group of individuals at one specific point in time. This is not true for the MMPI-2 because it does not look at different age groups or stages at one specific point in time. \nb. Projective tests:Projective tests involve uncovering unconscious desires by presenting ambiguous tasks or stimuli, and then asking respondents to interpret them. This is not true for the MMPI-2. The MMPI-2 is not ambiguous and does not aim to uncover unconscious desires. \nc. Achievement tests: These are used to measure the level of a person's knowledge in a certain subject matter. The MMPI-2 does not measure achievement. \nd. Self-report tests: These are tests in which responses are provided directly by the person who is being assessed. The questions are usually specific and require yes/no type answers or a rating scale. Therefore, option D is aligned with the approach used in the MMPI-2 test.

Based on the analysis of the given options, it can be determined that the MMPI-2 fits best under the definition of 'Self-report tests.'