Chapter 3 TEST

Front

What is a control group in an experiment?

Back

A control group is a baseline group that does not receive the experimental treatment, allowing for comparison with the treatment group. Often given an inactive treatment (placebo).

Front

What is a matched pair experimental design?

Back

A matched pair experimental design involves pairing subjects based on certain characteristics, where one subject receives treatment A and the other receives treatment B.

Front

What is convenience sampling?

Back

Convenience sampling is a non-probability sampling method where subjects are selected based on their easy availability and proximity to the researcher.

Front

What is confounding in research?

Back

Confounding occurs when two variables are associated in such a way that their effects on a response variable cannot be distinguished from each other.

Front

What is a lurking variable?

Back

A lurking variable is a variable that is not included in the study but affects the relationship between the independent and dependent variables.

Front

What is the purpose of a placebo in experiments?

Back

A placebo is an inactive treatment used to compare against an active treatment, helping to isolate the effect of the treatment being tested.

Front

What is the difference between an active treatment and a placebo?

Back

An active treatment is a real intervention that is expected to have an effect, while a placebo is an inactive substance that has no therapeutic effect.

Front

What is systematic sampling?

Back

Systematic sampling is a probability sampling method where subjects are selected at regular intervals from a randomly ordered list.

Front

What is a response variable?

Back

A response variable is the outcome that researchers measure in an experiment to see if it is affected by the treatment.

Front

What is the significance of random sampling?

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Random sampling ensures that every individual has an equal chance of being selected, which helps to eliminate bias and improve the generalizability of results.