Question 1
The requirement of statistical analyses for independent observations
◦ Makes research on casework harder than research on group work
◦ Makes research on casework easier than research on group work
◦ Does not affect research on group work
◦ Effects group work research more than casework research
Question 2
To improve practice, practice wisdom
◦ Should not be combined with evaluation methods
◦ Can be combined with evaluation methods
◦ Has no place in improving practice methods
◦ Should be given priority over evaluation methos