Question

which of the following is a part of an observational study?
A)control of all variables
B)manipulation of participants
C)Collection of data
D)inclusion of bias

Answer 1

Answer:

Collection of data is the part of an observational study.

Option: (c)

Explanation:

• Observational study is the non-experimental research that is usually used in the investigation of certain effects that is due to the treatment.

• The observational study is qualitative study. The major part of the observational study is to collect data and analyze it properly.

• It is used in many fields like sociology, psychology and statistical aspects.

• Mainly there are three types of observational study: cross-sectional, case-control and cohort study.

Answer 2

Answer:

collection of data

Explanation: