Explanation:

• Option 1: Long and Sherer (1985)

- Their research involves anger management and social skills training.

• Option 2: Elias and Clabby (1992)

- Focus on social decision-making skills.

• Option 3: Wager (1992-1993)

- No distinct focus relating to perspective-taking and delinquency.

• Option 4: Chandler (1973)

- Correct Answer

- Conducted experiments on perspective-taking skills and delinquency in youths.

- Involves delinquent subjects aged 11-13 assigned to intervention groups.

- Chandler is the correct answer.

• Option 5: Gottfredson (1987)

- Work is more about crime prevention and community involvement.