Final answer:
Careless completion of the PAI would likely result in elevated scores on the L scale for infrequent responses, as well as potential increases on the P and K scales for overly positive portrayal and defensiveness.
Step-by-step explanation:
If a client completes the Personality Assessment Inventory (PAI) carelessly, you should expect elevations on scales c) P, L, and K. These scales are concerned with the client's approach to the test-taking process: P (Positive Impression Management) reflects attempts to portray oneself overly positively, L (Infrequency) identifies inconsistent or rare responses, and K (Defensiveness) detects attitudes of denial or minimization of problems. Careless responding could result in atypical and infrequent answer patterns, which would likely raise scores on the L scale, and could also be related to elevations in the P and K scales if the random responses are skewed towards overly positive or defensive answers.