GCSE Psychology Research Methods Variables Video 1

What is the foundation of everything in psychology research methods?

• Solving maths related questions

• Sampling methods

• Evaluation ethics

• Knowing your variables

What do you control in an independent variable?

• The amount of sleep someone gets in a study about sleep and reaction time

• Environmental factors

• The variable you measure

• The participant's behavior

What is a dependent variable?

• The variable you control

• The variable influenced by the independent variable

• A variable that remains constant

• The variable you measure

What is an example of an extraneous variable in a sleep study?

• The amount of sleep

• The reaction time

• Having an energy drink before the test

• The time of day the test is taken

What does 'participant variables' refer to?

• Variables controlled by the researcher

• Environmental factors affecting the study

• Characteristics of participants that may influence the study

• The method used to select participants

What is a strength of random sampling?

• It is not biased

• It gives everyone an equal chance of participation

• It is cheap and easy to do

• It is the most representative of the target population

What is a weakness of opportunity sampling?

• It can be quite expensive and time-consuming

• It is limited to the area of recruiting and is biased

• Chosen names might refuse to take part

• It is not representative of the target population

What is a strength of stratified sampling?

• It is not biased

• It is the most representative of the target population

• It gives everyone an equal chance of participation

• It is cheap and easy to do

What is a weakness of systematic sampling?

• It is biased

• It is limited to the area of recruiting

• It is expensive and chosen names might refuse to take part

• It is not representative of the target population

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