Asociology instructor asks students to make lists of the characteristics of the best and worst possible instructors. these lists, which would be used to evaluate all instructor's, would form an example of a(n)a. typology.
b. ideal type.
c. verstehen.
d. hypothesis.

B. ideal type.

Explanation:

A sociology instructor asks students to make lists of the characteristics of the best and worst possible instructors. These lists will be used to evaluate all instructors. This is an example of ideal type.

Ideal type in sociology also known as pure type is typological term most commonly used with sociologist Max Weber, who used  it as an analytical tool to study history.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

can you explain it better