Garcia checked at five-minute intervals to see if Jane was playing appropriately in a small group. He was using:

a. interval recording

b. time sampling

Mr. Garcia was using time sampling.

Option: (B)

Explanation:

The method that was used by Mr. Garcia was characterized by time intervals and the data that he collected after each time interval. As he was concerned with whether or not Jane is playing appropriately or not, the information that he collected after every five minutes can be referred to as a sample. After processing these samples, Mr. Garcia can conclude that Jane plays with the group appropriately for the entire time she is with the group.