Objective: This study adds to the literature on the psychometric properties of the Problem Areas in Diabetes-Teen (PAID-T) and Parent (P-PAID-T) Versions. It also aims to shorten the measures of diabetes-specific distress, determine construct validity, and establish cutoff scores. Methods: Data are from two independent studies (N = 1,265). Adolescent-caregiver dyads completed measures of emotional distress, diabetes strengths, hemoglobin A1c, blood glucose checks, and average blood glucose. Exploratory and confirmatory factor analyses assessed factor structures for each measure. Correlational analyses provided support for concurrent validity. Receiver-operating characteristic curves identified cutoff scores based on clinically meaningful groups identified with latent profile analysis. Results: Analyses supported a 14-item PAID-T and a 15-item P-PAID-T, with preliminary cutoff scores >/=44 and >/=54, respectively. Measures were associated with emotional and health outcomes as hypothesized. Conclusions: The PAID-T and P-PAID-T are valid, reliable, and useful measures of diabetes-specific distress for teenagers with type 1 diabetes and parents of teenagers.