If two or more informants are available to complete the OABCL, should they collaborate in completing a single OABCL, or should they independently complete separate OABCLs?

Answer: Each informant should independently complete a separate OABCL to reflect his/her own views of the older adult. Collaboration by multiple informants may obscure variations in the older adult’s functioning and in different informants’ views that can be captured by OABCLs completed independently by each informant.

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