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Questions and Answers

Which of the following best describes a confounding variable?

A variable that is controlled to ensure accurate measurements.

A variable that changes systematically with the independent variable and affects the dependent variable. (correct)

A variable that does not affect the dependent variable.

A minor variable that has no significant impact on the results.

Operationalisation involves clearly defining how variables are measured.

True

What is the purpose of a control condition in an experiment?

To provide a baseline for comparison with the experimental condition.

Extraneous variables are considered __________ variables that do not systematically affect the dependent variable.

nuisance Signup and view all the answers

Match the following terms with their correct definitions:

Independent Variable = The variable manipulated by the researcher Dependent Variable = The variable measured in response to the IV Operationalisation = Defining variables in measurable terms Extraneous Variable = A variable that affects the DV but is not the IV Signup and view all the answers

What is a potential drawback of natural experiments?

They often have confounding variables. Signup and view all the answers

Opportunity sampling ensures a representative sample of the population.

False Signup and view all the answers

What is the main characteristic of a natural experiment?

The independent variable is not manipulated by the researcher. Signup and view all the answers

Natural occurring events may be ________, making these experiments difficult to replicate.

rare Signup and view all the answers

Match the following sampling methods with their characteristics:

Opportunity sampling = Participants readily available at the time of study Random sampling = All individuals in a population have an equal chance of selection Snowball sampling = Participants refer other participants Stratified sampling = Population is divided into subgroups and sampled from each Signup and view all the answers