Characteristics of Experimental Research Design Flashcards

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1
Q

Who manipulates the IV?

A

The Researcher

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2
Q

What groups are involved? What is the purpose of this?

A

An experimental (have IV) group and a control (no IV) group.

To allow for a comparison to be made, as well as random allocation/ assignment of participants.

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3
Q

What happens to environmental extraneous variables?

A

Able to control most environmental extraneous variables. Therefore, able to reduce impact on results.

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4
Q

Where is this research design mostly conducted at?

A

In a laboratory setting, which is not in real-world scenario, therefore cannot be applied to real-world.

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5
Q

What will researchers do when selecting participants from population?

A

The researchers will pick a sample of participants with similar characteristics, in order to support how the IV influences the DV.

eg. age, sex, intelligence, etc…

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6
Q

Why do researcher conduct a pre-test and post-test?

A

To see if there are any changes, whether the IV works or not.

eg.

Random allocation -> Experimental Group -> Pre-Test -> Experimental Treatment -> Post-Test

Random allocation -> Control Group -> Pre-Test -> Post-Test

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7
Q

What are the pros of an Experimental Research Design?

A
  • A larger control over extraneous variables
  • Random allocation of participants
  • A clear identification of a cause and effect relationship (or “casual relationship”) between the IV and DV
  • Easy to replicate, thus able to further improve the validity of results
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8
Q

What are the cons of an Experimental Research Design?

A
  • No complete elimination of extraneous variables
  • Does not reflect real-world for it is set in an artificial lab (laboratory setting)
  • Possibly unethical
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