A Diary study is a research method in which participants record their thoughts, feelings, and behaviors over a period of time.

Diary studies are a type of qualitative research method used in product management to gain insights into user behavior and preferences. They involve asking participants to record their thoughts, feelings, and activities over a period of time. This data can then be used to inform product design decisions. Diary studies are typically conducted over a period of several weeks or months, depending on the research objectives. During this time, participants are asked to keep a diary or log of their experiences with the product or service being studied. This can include anything from how they use the product, what features they like or dislike, what problems they encounter, and any other feedback they have about the product. The data collected from diary studies is often used to inform decisions about product design and development. For example, it can help identify areas where users are having difficulty using the product or areas where improvements could be made. It can also provide insight into user preferences and behaviors that may not be obvious from traditional market research methods such as surveys or focus groups.

1. Ask participants to keep a diary of their daily activities for a week. Ask them to record the time they spend on each activity, how they feel about it, and any thoughts or insights they have about it. 2. Ask participants to keep a diary of their interactions with technology over the course of a week. Ask them to record the type of technology used, how long they used it for, and any thoughts or insights they have about it. 3. Ask participants to keep a diary of their online shopping habits over the course of a week. Ask them to record what items they purchased, how much money was spent, and any thoughts or insights they have about it. 4. Ask participants to keep a diary of their media consumption over the course of a week. Ask them to record what type of media was consumed, how long it was consumed for, and any thoughts or insights they have about it.