Experiments: Design Flashcards
What is repeated measures design?
an experimental design where the same participants take part in each condition of the experiment
What is independent measures design?
an experimental design where different participants are used in each condition of the independent variable
What is matched participants design?
an experimental design where pairs of participants are matched in terms of key variables, such as age and IQ
What is a strength of repeated measures design?
-Participants take part in both conditions so removes the chance of participant variables affecting the results (messing with the cause and effect)
-Fewer participants needed
-Easier to obtain a sample
What is a strength of independent measures design?
-Reduced demand characteristics: the participants in each condition are unaware of the other
-No order effects as only take part in one condition
What is a strength of matched participants design?
-Reduced effects of participant variables
-No order effects as different participants for each condition
-Lower chance of demand characteristics as participants only do one condition
What is a weakness of repeated measures design?
-Demand characteristics: participants may identify what the study is predicting and behave accordingly
-Order effects may influence results unless counter-balanced
What is a weakness of independent measures design?
-Need more participants, harder to obtain more participants
-Findings may be influenced by participant variables unless randomise allocation
What is a weakness of matched participants design?
can be time consuming and frustrating if one drops out
