Which is a principle for interviewing IDD clients?

• A. Do not assume an individual will exhibit any particular limitation.
• B. Always assume the individual has a limitation.
• C. Do not collect relevant facts before deciding a limitation.
• D. Disbelieve testimony because of IDD.

Answer: (A)

Respecting individual variation and avoiding stereotypes is essential when interviewing IDD clients. People with intellectual or developmental disabilities show a wide range of abilities and communication styles, so you assess each person on their own evidence and what they convey, not on preconceived ideas about what they can do. This means using clear, plain language, checking for understanding, and gathering relevant facts before drawing conclusions about any limitation. By focusing on what the person demonstrates and what supports they need, you get a more accurate picture of their capabilities and the situation.

Bang-on practice avoids blanket assumptions that a limitation exists for every IDD individual, and it also prevents biased conclusions. Conversely, assuming universal limitations or disbelieving testimony solely because of IDD would bias the investigation and distort the facts.