Social loafing may be reduced by:

Making the efforts of each person identifiable.

The correct answer is Option 1: Making the efforts of each person identifiable.

Option 1: Making the efforts of each person identifiable. This statement is correct because when individual efforts are identifiable, group members feel more responsible and are less likely to engage in social loafing.

Option 2: Decreasing the pressure to work hard. This statement is incorrect because reducing pressure may further decrease motivation and increase social loafing.

Option 3: Decreasing the importance or value of a task. This statement is incorrect because people put in less effort when they consider the task unimportant.

Option 4: Encouraging group members to become free riders. This statement is incorrect because free riding is itself a form of social loafing and increases the problem.

NCERT: To reduce social loafing, the following strategies can be employed:

• Making individual efforts identifiable and traceable.
• Increasing the pressure to work hard by fostering a commitment to successful task performance among group members.
• Enhancing the perceived importance or value of the task.
• Instilling the belief that each individual's contribution is vital.
• Strengthening group cohesiveness, which heightens motivation for achieving successful group outcomes.