A participant in a cognitive psychology study is given 50 words to remember

and later asked to recall as many as he can of them. This participant recalls 17.
What is the (a) variable, (b) possible values, and (c) score?

(a) The variable in this scenario is the participant's recall of words.

(b) The possible values for this variable are the number of words the participant recalls. In this case, the participant recalled 17 words out of the initial 50.

(c) The score refers to the specific value that the participant achieved on the variable. In this case, the score is 17, which indicates the number of words the participant was able to recall from the initial set of 50.