Research Designs Flashcards
What is independent measures?
Participants only take part in one condition of the experiment (requires more than one group).
What is an advantage of independent measures?
-Avoids order effects so ppt is less tired so more reliable.
-Less demand characteristics so increases validity.
What is a weakness of independent measures?
-More people are needed.
-More time consuming.
-More participant variables so less reliable.
What is order effects?
Occurs when participants take part in more than one condition and become bored or tired, effecting the results.
What is repeated measures?
One group of participants take part in all conditions.
What is a strength of repeated measures?
-Avoids participant variables, increases validity.
-Fewer people needed so less time consuming.
What is a weakness for repeated measures?
-Demand characteristics are more likely which reduces validity.
-Order effects are more likely to occur so less valid.
What is matched pairs?
Participants are matched for each condition for characteristics such as age.
What is strength of match pairs?
-Avoids participant variables so increased validity.
-Avoids order effects.
-Less chance of demand characteristics so more valid.
What is a weakness of matched pairs?
-Harder to find matches so very time consuming.
-Requires more participants, also time consuming.
