The present study analyzes Imposter Phenomenon (IP) through the lens of three different motivational frameworks. Expectancy Value Theory, Attribution Theory, and Self-Determination Theory were used to study IP among academics. With 72% of participants experiencing frequent or intense IP levels, IP was prevalent among those sampled. Females experienced higher IP than males, although race and first-generation status did not significantly impact IP levels. Post docs had higher IP scores than tenured faculty and full-time non-tenured faculty had higher IP scores than tenured faculty. Younger academics had higher IP scores. Analyses of the motivational frameworks showed significant differences by IP level.