360-degree feedback gathers performance information from a variety of sources—peers, managers, direct reports, and often customers—plus the individual’s own self-assessment. This broad input creates a well-rounded view of how someone behaves and performs across different relationships and situations, helping identify strengths and development needs. It’s primarily used for development and growth, guiding personalized plans rather than relying on a single perspective. Feedback from customers only, HR only, or self-assessment only would provide a narrower picture, which is why collecting from multiple sources including self is the best way to assess performance.

Preparing for an appraisal works best when you bring a complete, evidence-based view of your work, including both successes and the areas where things didn’t go as planned. Reviewing diaries or files to note all projects helps you reconstruct what you did, when you did it, and what the outcomes were, giving you concrete details to discuss with your supervisor. This approach supports a balanced, fact-based conversation about impact, contributions, and learning, rather than relying on memory or selective highlights. It also signals accountability and readiness to reflect on development needs, which is exactly what an appraisal aims to foster. Other approaches miss important pieces. Focusing only on achievements can create an incomplete picture and overlook challenges, decisions, and learning moments that are crucial for growth. Designing new goals without supervisor input can misalign your plans with team priorities and organizational expectations. Refraining from sharing a self-assessment blocks you from guiding the conversation with your own perspective on strengths, development needs, and evidence from your work.

The main idea here is when a formal performance discussion is most effectively scheduled within the review cycle. Conducting the appraisal interview in the middle of the appraisal period allows you to look at what's been done so far, give timely feedback, and adjust goals or development plans for the rest of the period. This timing supports a proactive coaching approach: you can address gaps, reinforce strengths, and set realistic expectations before the cycle ends, increasing the chance of improvement and a fair final assessment. Scheduling at the start would not yet reflect actual performance, and waiting until the end is often too late to influence outcomes. Waiting after a crisis is reactive, not systematic performance management.

Halo Effect is the bias where one positive attribute or performance feature colors the assessment of other, unrelated areas. When a manager sees one aspect doing well, they tend to infer that the employee is strong overall, leading to inflated ratings across multiple dimensions even if evidence in those other areas is mixed. For example, if someone consistently meets deadlines, a supervisor may rate them as highly competent in teamwork, communication, and initiative too, despite average performance in those areas. Central tendency would push ratings toward the middle, the horn effect would apply a negative trait to drag down other ratings, and appraiser discomfort isn’t a recognized systematic bias of this type.

The main idea here is to understand how these tools serve different purposes and focus on different timing of performance. A performance appraisal looks back at how well an employee performed against established standards, using that past evidence to rate performance and inform decisions like pay, promotions, or development planning. A performance improvement plan is a proactive, corrective process for someone who is underperforming; it lays out specific performance gaps, the exact steps the employee should take, a timeline for achieving those steps, and clear consequences if the improvements aren’t made. That combination—past evaluation in the appraisal and a structured, time-bound plan with measurable steps in a PIP—best captures the distinction. The other options mix up the focus or timing (for example, suggesting both are for future development, or reversing which tool evaluates past performance), or reduce the purpose to promotions or demotions, which misses the primary intent of each mechanism.