Tag: cohort

Sampling

Sampling

When designing a longitudinal study, the first thing that needs to be decided is who the study will focus on. Researchers might be interested in the population as a whole, or could select their sample of participants based…

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Data collection tools

Data collection tools

Longitudinal studies collect a great deal of information through questionnaires. An interviewer might ask questions either face-to-face, or over the phone, or the participants might complete the questionnaire on their own. Assessments can be used to show how…

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Using longitudinal data for research

Using longitudinal data for research

Each time longitudinal studies collect new information about their participants they are adding rich new data to what we already know about them. Longitudinal studies allow us to see how key life events, like marriage, having a baby,…

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