Final answer:
Counselors make a common error of moving too quickly from data collection to treatment planning, without thoroughly analyzing and interpreting the collected data.
Step-by-step explanation:
A common error that counselors make when conducting an assessment is: b. moving too quickly from data collection to treatment planning. Counselors may rush the process of gathering information and fail to thoroughly analyze and interpret the data collected from the client. This can result in inadequate treatment plans or interventions that do not adequately address the client's needs. It is important for counselors to take the time to carefully review and process the information before moving on to treatment planning.