1. Try to include at least one nonreactive measure, especially if a reactive measure is being used. 2. Try not to overburden one person with all the measurement responsibilities. 3. Try to obtain...

1. Try to include at least one nonreactive measure, especially if a reactive measure is being used.

2. Try not to overburden one person with all the measurement responsibilities.

3. Try to obtain measurement information from more than one person (e.g., client and relevant other).