Answer - D - The BDI, or Beck Depression Inventory, has been extensively studied for content validity, concurrent validity, and construct validity. The MMPI-TM2 is an empirically-based assessment of adult psychopathology. The QOLI is a quality of life inventory. The HTP, or the house-tree-person projective drawing technique, was designed to aid clinicians in obtaining information concerning an individual's sensitivity, maturity, flexibility, efficiency, degree of personality integration, and interaction with the environment.