Data Set 1-1

Data Set 1-1: . Albert Bandura promotes cognitive therapy. In one study (Bandura, Blanchard, and Ritter, 1969) , 48 volunteers who wanted to rid themselves of a snake phobia were randomly assigned to therapy groups. One group watched a film in which actors (models) handled a four-foot king snake. If participants began to get anxious, they stopped the film and relaxed until they were ready to continue. A second group watched a live model handle the snake and was encouraged to join in when they felt like it. A third group received desensitization therapy. A fourth group served as an untreated control group. After the therapy sessions the number of snake-approach responses was recorded for each participant. (Group 2 showed the most.)
-The three kinds of active therapy in the snake-phobia experiment in Data Set 1-1 represent measures on a scale of measurement.

A) nominal
B) ordinal
C) Interval
D) ratio.