The question asks to identify the statement that is NOT true regarding the use of group discussion (GD) as a method for health communication. We need to evaluate each option based on principles of effective group dynamics and communication.

Group Discussion Effectiveness Factors

Effective group discussions, especially in contexts like health communication, rely on several factors:

• Participant Visibility: Members should be able to see each other easily to facilitate non-verbal cues and engagement.
• Facilitation: A leader or facilitator is usually beneficial to guide the discussion, manage time, and ensure everyone participates.
• Group Composition: While ideal sizes vary, familiarity among members can sometimes encourage freer expression, though it's not always a prerequisite for success.

Analyzing the Statements

Let's examine each statement:

• Statement 1: "The group should comprise less than 6 members, for effective group discussion." This statement presents a specific, strict upper limit (less than 6) as a requirement for effectiveness. While smaller groups (often cited around 6-10 members) can be more manageable, the claim that effectiveness is *only* achieved with *less than 6* members is debatable and often too restrictive. Larger groups can be effective with proper facilitation, and smaller groups might lack diverse viewpoints. This is likely the statement that is NOT universally true.
• Statement 2: "Participants should be seated such that each is fully visible to all the others." This condition promotes better eye contact and awareness among participants, enhancing communication flow and engagement. This is generally considered true for effective GD.
• Statement 3: "There should be a group leader." A leader helps structure the discussion, keep it focused on objectives, encourage participation from quieter members, and manage time. This is a common and beneficial practice for GD effectiveness. This is generally considered true.
• Statement 4: "It is best successful if the members know each other before hand, when they can discuss freely." Familiarity can reduce initial awkwardness and foster trust, potentially leading to more open and honest communication, particularly important in health-related topics. While not strictly mandatory, this condition often contributes to success. This is generally considered true.

Conclusion on Group Size

The statement presenting a rigid size constraint ("less than 6 members") is the most likely exception. Effectiveness in group discussion depends on many factors, including the topic, the facilitator's skill, and the participants' engagement, not solely on adhering to a strict numerical limit like being under 6 people.