Difficulties in inter- and intrapersonal functioning are central features of personality pathology. While several measures of psychosocial functioning exist, there is presently a lack of freely available measures specifically designed to assess facets of inter- and intrapersonal problems. In response to this issue, Boudreaux, Wright, Ozer, and Oltmanns (under review) recently developed a novel, 64-item measure of interpersonal problems (i.e., the Circumplex Scales of Interpersonal Problems) derived from an item pool of 400 specific social, emotional, and behavioral problems (Boudreaux, 2016). The present study aims to expand on Boudreaux et al. (under review) by developing and validating a measure of intrapersonal problems that can be used in conjunction with the Circumplex Scales of Interpersonal Problems, or as an independent measure. Based on an initial “scale development” sample of 1,197 university students, we explored the factor structure of a subset of 262 problems independently coded as “intrapersonal.” Seven factors were extracted and rotated, and labeled “Emotional Vulnerability,” “Self-Uncertainty,” “Rule-Breaking/Impulsivity,” “Self-Directedness,” “Behavioral Rigidity,” “Fantasy Proneness,” and “Apathea.” In the current study, we aim to replicate these findings and construct scales to assess these seven dimensions. University students (N ~ 250) will complete a reduced subset of 168 intrapersonal problems, along with measures of personality functioning [i.e., the General Assessment of Personality Disorder (Livesley, 2006); Severity Indices of Personality Problems (Verheul et al., 2008); and Circumplex Scales of Interpersonal Problems (Boudreaux et al., under review)] and consequential life outcomes (e.g., life satisfaction, social functioning, substance abuse). We will perform a second exploratory factor analysis on the subset of 168 items and examine factor congruence coefficients to assess the similarity of factors across samples. Eight markers of each factor will be selected to construct scales. Construct validity of the resulting scales will be assessed by examining correlations with external measures of personality functioning. Finally, we will perform a series of hierarchical regression analyses to assess the incremental validity of the new intrapersonal problems scales in predicting several life outcomes after accounting for existing measures of problem behavior. Data collection is presently underway. We expect that the intrapersonal problems scales will demonstrate strong internal consistency, converge with other measures of personality functioning, and ultimately serve as an effective means of studying the intrapersonal consequences of personality and psychopathology. Clinical implications and future directions will also be discussed.