Developing informal norms can be achieved by
A. comparing the target student to a typical student identified by the teacher.
B. comparing students in different grades.
C. comparing several separate observations of the behavior of the target student.
D. only A and B.
E. all of the above.
Question 2
In order to minimize threats to the reliability of observations, which of the following should be considered? (Circle all that apply.)
A. the observation forms should use simple, uncomplicated codes.
B. observations should be conducted in as unobtrusive a manner as possible.
C. observations should occur as infrequently as possible.
D. observers should be well trained and should be monitored.
Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how
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