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There are different types of approaches, for example can be carried out by archival records, interviews, direct observations, participant observation and physical artifacts.

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What kind of data is typically produced (quantitative/ qualitative/ both) by this method?

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What kind of data is typically produced (quantitative/ qualitative/ both) by this method?

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Additionally, case study methods can be produced qualitative and/or quantitative.

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A case study is a research methodology that has commonly used in social sciences. A case study is a research strategy and an empirical inquiry that investigates a phenomenon within its real-life context.A case study is a descriptive and exploratory analysis of a person, group or event.

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Good website to understand everything about a case study!

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Good website to understand everything about a case study!

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https://venngage.com/blog/case-study-examples/

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Case studies are analysis of persons, groups, events, decisions, periods, policies, institutions or other systems that are studied holistically by one or more methods.

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The effect of sedentary lifestyles on young people’s  mental health.

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The effect of sedentary lifestyles on young people’s  mental health.

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Step 1- Ask a small gorup of teenagers around the age of 15-17, ask them how many hours they use their phone everyday.
Step 2 - Ask the same small group of teenagers if they have any mental health prpoblems or if they feel in a certain way.
step 3 - analyse the data and see if sedentary life styles have an effect on peoples mental health.