ObjectivePsychotherapist management of client resistance (i.e., opposition to change or the therapy process) has a significant impact on therapy outcomes. This study aimed at assessing psychotherapists' and nontherapists' abilities to recognise empirically supported correct and erroneous therapist responses to client resistance.MethodSeventy‐eight therapists and 111 nontherapists completed a rapidly administered novel skills test, Therapist Errors in Resistance Management (TERM), assessing recognition of correct and erroneous resistance management.ResultsParticipants were, on average, less than half as accurate at recognising therapist errors (recognised below chance levels) compared with correct therapist responses to resistance (recognised above chance levels). Therapists outperformed nontherapists in accurate recognition of therapist responding. However, among the therapist group, greater clinical experience did not predict superior recognition of therapist errors.ConclusionThese results indicate that therapists and nontherapists alike may have difficulty detecting erroneous therapist responses to resistance, tending to mistake empirically contraindicated directive responses for correct responding. This may reflect the difficult and unintuitive nature of correct resistance responding and may suggest a need for increased training in process acuity and resistance management in therapist education.