Robert watches for shooting stars on a clear night, and sees one approximately every two minutes. This is an example of a schedule of reinforcement.

Fixed-interval

Explanation:

Fixed-interval schedule: In psychology, the term "fixed-interval schedule" is described as one of the different reinforcement schedules and is a part of the operant conditioning. In fixed-interval schedule, reinforcement is being provided to a specific and desired response after a "predictable amount" of time has elapsed.

In the question above, the given statement represents "fixed-interval schedule" of reinforcement.

answer; /// i believe the correct answer is (when one group has an extremely high score at pretest;

the question deals with financial planning and the answer is that dan did not stay on budget due to the fact that this guy needs to start decreasing his discretionary spending. according to the financial plan, he needed to balance his expenses and resources.