SH Yr 12 Research Methods Variables

The independent variable is...

• what the researcher measures

• something unwanted that can affect results

• a testable prediction

• what the researcher changes or compares

An extraneous variable is...

• what the researcher measures

• something unwanted that can affect results

• a testable prediction

• what the researcher changes or compares

A testable prediction is known as a

• Variable

• Research question

• hypothesis

• Research aim

In an experiment, which of the following best describes what ‘control’ refers to?

• apart from the IV, keeping as many other things the same as possible

• apart from the DV, keeping as many other things the same as possible

• restricting participants to a specific amount of time to complete tasks

• restricting participants to a specific number of attempts to complete the tasks

Athletes who have a training partner are likely to score higher on a questionnaire measuring motivation levels than athletes who train alone.

What type of hypothesis is this?

• one tailed

• two tailed

Athletes who have a training partner are likely to score higher on a questionnaire measuring motivation levels than athletes who train alone.

What is the dependent variable?

• Score on a questionnaire

• Amount of training

• Motivational levels

• Whether they train alone or with someone else

Athletes who have a training partner are likely to score higher on a questionnaire measuring motivation levels than athletes who train alone.

What is the independent variable?

• Score on a questionnaire

• Amount of training

• Motivational levels

• Whether they train alone or with someone else

There will be a difference between male and female participants in the number of basketball hoops scored.

What type of hypothesis is this?

• Directional

• Non directional

There will be a difference between male and female participants in the number of basketball hoops scored.

What is the independent variable

• number of participants

• number of basketball hoops scores

• height

• whether the participant is male/female

There will be a difference between male and female participants in the number of basketball hoops scored.

What is the dependent variable

• number of participants

• number of basketball hoops scored

• height

• whether the participant is male/female