Glancing at the television in the next room in hopes of seeing the beginning of the evening news is likely to be reinforced on a schedule.

This question lacks options, options are: a. intermittent-variable b. fixed-interval c. variable-interval d. variable-ratio e. fixed-ratio. The correct answer is b.

Explanation:

When we carry out operant conditioning following a fixed interval reinforcement schedule, we administer the reinforcing stimulus to the subject only when a certain time has passed since the last presentation of the reinforcement, that is, with a constant time interval, for example, every minute, in other words, the reinforcement occurs each time a certain number of responses is issued. The constant time is counted from the preceding reinforcer and upon completion, the first response is reinforced.