In this paper we detail the construction and validation process for a new personality-oriented work analysis instrument, in the form of a standardized questionnaire, based on extant research that shows that personality traits are good predictors of job performance. We present the process of item development, frame of reference training, rating scale creation, and the selection of subject matter experts. By administering the instrument to three distinct positions, the interrater reliability coefficients resulted between .80 and .94. We also investigated the instrument’s ability to discriminate between the same rated positions, and the results for this indicator were quite low. Conclusions provide some possible explanations for the lower resulted discriminability. Practical and theoretical implications are discussed as well as other future research for general improvement of data quality.