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Ivan
3 years ago
6

A study in which the assignment to treatment groups is not made by the investigator is called

Social Studies
2 answers:
Natali [406]3 years ago
7 0

Answer: observational study

Explanation:

This is when the data or experiment is not been carried out by the reaseacher himself but by another group or set of people

Some types of Observational study are;

Case Control study

Cross sectional study

Longitudinal study.

adell [148]3 years ago
4 0

Answer: OBSERVATIONAL STUDY

Explanation: Observational study as used in social sciences, psychology and statistics can be defined as a research in which the variable that is changed or manipulated in an experiment, is not under INFLUENCE/CONTROL of the researcher.

This is usually done due to logistical restrictions and or due to ethical reasons.

Some types of Observational study are;

Case Control study

Cross sectional study

Longitudinal study.

An example of Observational study will be observers stationed at a supermarket to see how much processed food versus fresh food was purchased.

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