EDUCATION (CBSE/UGC NET)

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: -The longitudinal approach of investigation: In a longitudinal survey sequence of events is observed in each subject selected for the study. It is able to measure the pattern of change in the dependent variables over a period of time.

Detailed explanation-3: -Longitudinal studies (also known as panel studies) are used by researchers to measure changes over time in regard to a variable or variables being measured or a group of people being studied.

Detailed explanation-4: -In a longitudinal study subjects are followed over time with continuous or repeated monitoring of risk factors or health outcomes, or both. Such investigations vary enormously in their size and complexity. At one extreme a large population may be studied over decades.

Detailed explanation-5: -A longitudinal design is one that measures the characteristics of the same individuals on at least two, but ideally more, occasions over time. Its purpose is to address directly the study of individual change and variation.