Washington University Sentence Completion Test

The Washington University Sentence Completion Test (WUSCT) is a sentence completion test created by Jane Loevinger, which measures ego development along Loevinger's stages of ego development. The WUSCT is a projective test; a type of psychometric test designed to measure psychic phenomenon by capturing a subject's psychological projection and measuring it in a quantifiable manner. The test has been characterized as a good test for clinical use as it can measure across distinct psychopathologies and help in choosing treatment modalities; to this end, it is used by many clinical psychologists and psychiatrists.

Stated simply, ego development refers to the observation that people do not remain psychologically static throughout their lives; rather, they undergo a long process of internal evolution. As such, the concept itself is ancient in origin and has received some form of treatment in almost all systems of philosophy and all schools of psychology. Loevinger conceived of an ego development system that would closely resemble moral development but be both broader in scope and utilize empirical methods of study. Loevinger started by creating an objective test of mother's attitudes to problems in family life, which she christened the Family Problems Scale. This first test did not yield the expected results, but Loevinger noticed a strong similarity between the Authoritarian Family Ideology and the concept of authoritarian personality being developed at UC Berkeley in the early 1960s. Loevinger noticed that the women who scored at the most extreme ends of the authoritarian scale also tended to be the most immature, endorsing items like "A mother should be her daughter's best friend", while simultaneously endorsing punitive behavior. Additionally, she noted that a liberal, non-authoritarian personality was not the opposite of a high authoritarian personality. Rather, anomie, a disorganized and detached social style was the opposite of the high authoritarian, exhibiting a curvilinear relationship. Loevinger theorized that this was because the Authoritarian Family Ideology scale was not measuring just authoritarianism but some broader concept which weighed heavily upon all the other constructs she measured. By combining this theoretical framework with Sullivan and Grant's interpersonal maturity continuum, the concept of ego development was born.

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