Depending on your goal, you can use different market research methods to identify the most effective product features. Surveys are a great way to collect quantitative data from a large and representative sample of your target market. You can ask them about their needs, preferences, satisfaction, and willingness to pay for your product features. Interviews are helpful for collecting qualitative data from a small and selected group of your target market. They allow you to ask more in-depth and open-ended questions about their pain points, motivations, expectations, and feedback for your product features. Lastly, observations enable you to collect behavioral data from your target market in their natural environment. Through observations, you can watch how they use your product or similar products, and how they interact with your product features. All these methods help you test different feature concepts and measure their appeal and impact.