When measuring the effectiveness of PR during a crisis, you can choose from different types of metrics depending on your objectives. Output metrics measure the quantity and quality of PR outputs such as press releases, media coverage, and social media posts. They can help assess how well you are reaching and engaging your target audience, as well as how consistent and coherent your messages are. Outcome metrics measure the changes and effects that your PR outputs have on your audience, such as awareness, knowledge, attitude, opinion, trust, loyalty, etc. They can help evaluate how well you are influencing and persuading your stakeholders. Impact metrics measure the ultimate results and benefits that your PR outcomes have on your organization, such as sales, revenue, market share, retention, referrals, etc. They can help demonstrate the value and return on investment of your PR efforts and how well you are supporting business goals and objectives. Examples of output metrics are reach, impressions, share of voice, tone, and message delivery; outcome metrics are surveys, polls, ratings, reviews, feedback, and sentiment analysis; impact metrics are conversions, leads, transactions, retention rate, and customer lifetime value.