Data collection activities are divided into Experiments and Observational Studie

Question

Data collection activities are divided into Experiments and Observational Studies. Which of the following are true?

a) In experiments, researchers modify or control the environment. ---Select--- False True
b) Opinion polls are considered experiments ---Select--- True False
c) In experiments, researchers do not modify or control the environment ---Select--- True False
d) Observational studies cannot prove cause and effect relationships. ---Select--- True False
e) Opinion polls are considered observational studies. ---Select--- True False
f) In observational studies, researchers modify or control the environment. ---Select--- False True
g) Experiments can prove cause and effect relationships between variables, i.e. a certain pill improves memory. ---Select--- False True
h) In observational studies, researchers do not modify or control the environment, they just collect data. ---Select--- True False

Explanation / Answer

a.) True

b.) False

c.) False

d.) True

e.) True

f.) False

g.) True

h.) True

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