I have long-standing interests in the area of personality measurement. For the most part, these are currently focused on the issues related to test construction in general and to the concept of social desirability. Some of my work has been specifically devoted to the deliberate faking of responses in personality measures, which is conceptually distinct from socially desirable responding. The latter appears to be more systematic, evaluative characteristic that has broader implications for psychological functioning. At a construct level, socially desirable responding needs to be controlled in order to have more accurate assessment of the other constructs, while its relationship to the operation of normal personality continues to be a matter of ongoing study.