Experimental designs

What experimental design involves testing participants of a similar ability, age or intelligence?

• Repeated Measures

• Matched Pairs

• Independent Groups

What is a weakness of Matched Pairs?

• It leads to order effects

• Demand characteristics

• It's impossible to match people exactly

Which experimental design involves one group of participants taking part in both conditions of the experiment?

• Repeated Measures

• Matched Pairs

• Independent Groups

What is an advantage of Repeated Measures?

• Order effects

• Demand characteristics

• No participant variables

Which experimental design involves two groups of participants, each group performing one condition of the experiment?

• Independent groups

• Repeated measures

• Matched pairs

What is a weakness of Independent groups?

• order effects

• participant variables

• demand characteristics

What term do we use to describe participants realising the aim of the study and then behaving in a way that they think the researcher wants them to?

• order effects

• demand characteristics

What term do we use to describe taking part in the first trial affecting performance in the second trial?

• order effects

• demand characteristics

What is a hypothesis?

• a testable statement

• the aim of the research

• what a researcher predicts will happen in their research

• a testable question about the research to be conducted

Which of these statements is an alternative hypothesis which mentions both levels of the IV?

• Boys do not enjoy playing with train tracks any more than girls do.

• A diet high in nuts and vegetables has an effect on brain power.

• Chocolate before bed does not result in crazy dreams compared to no chocolate before bed.

• Concentration in class is improved by having 8 hours sleep compared to having 6 hours sleep.