Untitled Quiz

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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 (A)

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. (A) Signup and view all the answers

Opportunity sampling ensures a representative sample of the population.

False (B) 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

Control of Variables

Ensuring only the independent variable (IV) affects the dependent variable (DV)

Extraneous Variable

A variable other than the IV that affects the DV, but doesn't change systematically with the IV.