Match List-I with List-II

List I	List II
A. Premack principle	I. The rapid change in performance level as the size of reinforcement is varied
B. Zeigarnik effect	II. Reinforcement strengthens the neighbouring response in addition to the response that it produced
C. Crespi effect	III. The opportunity to engage in a frequently occurring activity can be used to reinforce a less frequently occurring activity
D. Spread of effect	IV. The tendency to remember incomplete tasks longer than complete ones

1. AA-II, B-I, C-IV, D-III
2. BA-I, B-III, C-II, D-IV
3. CA-IV, B-III, C-I, D-II
4. DA-III, B-IV, C-I, D-II

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Correct answer: D. A-III, B-IV, C-I, D-II

Explanation

Premack – a frequent activity reinforces a rare one; Zeigarnik – incomplete tasks remembered better; Crespi – performance shifts with reward size; spread of effect – reinforcement strengthens neighbouring responses.