Que. | During conduction of above research if the researcher takes representative samples from the age group of birth, 3 months, 4 - 6 months, 9 months and so on then this type of survey will be known as- |
- A. Longitudinal survey
- B. Cross - sectional survey
- C. Evaluative survey
- D. Comparative survey
Right Answer is :
✓ B. Cross - sectional survey
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