Team performance depends on members fulfilling their roles to achieve shared goals. A failure to complete tasks directly impacts the team’s ability to deliver results.

Option A (Satisfaction of the team member): Satisfaction may be affected indirectly, but it is not the primary impact of task failure.

Option B (Individual growth): Growth is a personal outcome, not the main team performance metric affected by task failure.

Option C (Productivity and results): This is the correct answer. The NAHQ CPHQ study guide states, “Failure to complete assigned tasks directly impacts team productivity and the achievement of project results” (Domain 3). Uncompleted tasks delay progress and outcomes.

Option D (Storming and norming): These are team development stages, not directly affected by task failure, though they may influence team dynamics.

CPHQ Objective Reference: Domain 3: Organizational Leadership, Objective 3.2, “Support effective team dynamics,” includes ensuring task completion for productivity. The NAHQ study guide notes, “Task accountability is critical for team performance and results” (Domain 3).

Rationale: Uncompleted tasks hinder the team’s ability to achieve goals, directly affecting productivity and results, as per CPHQ’s team management principles.