The independent variable (IV) is the variable that is directly manipulated by the experimenter.
What are participant effects?
When the participants are aware what is expected of them, so the participants change their behavior.
When the researchers behavior or characteristics influence the research in any way.
Variables associated with the research situation.
The variables associated with the research participants.
Directional or Non-Directional hypothesis?
'There will be a difference between the number of words recalled correctly during a memory test when it is done under quiet conditions and when it is done under noisy conditions'.
Which of the following experiments is the IV manipulated by the experimenter?
Which of the following are weaknesses of natural experiments?
Lacks ecological validity
Decreased internal validity
Results can be hard to interpret
Many extraneous variables
A disadvantage of independent groups design is order effects.
Random sampling is when
People are selected if they are readily available
Everyone in the target population has an equal chance of being selected
Reliability refers to whether the test is measuring what it claims to measure.
Which of the following are measures of central tendency?
Which of the following is NOT an ethical issue?
Right to Withdraw
Protection From Psychological Harm