RESEARCH METHODOLOGY

Detailed explanation-1: -In a longitudinal study, researchers repeatedly examine the same individuals to detect any changes that might occur over a period of time. Longitudinal studies are a type of correlational research in which researchers observe and collect data on a number of variables without trying to influence those variables.

Detailed explanation-2: -Cohort studies are one type of longitudinal study which sample a cohort (a group of people who share a defining characteristic, typically who experienced a common event in a selected period, such as birth or graduation) and perform cross-section observations at intervals through time.

Detailed explanation-3: -Types of longitudinal studies Panel study: A panel survey involves a sample of people from a more significant population and is conducted at specified intervals for a more extended period. One of the panel study’s essential features is that researchers collect data from the same sample at different points in time.

Detailed explanation-4: -Most longitudinal studies collect a considerable amount of information from participants through survey questionnaires. They might be administered by an interviewer (either face-to-face or over the phone), or completed by the participants on their own (either online or using a paper questionnaire).