Experimental Designs

    Cards (15)

    • Matched Pairs is where pairs of participants are matched based on relevant variables and then randomly assigned to one of two conditions
    • Independent Groups is where two different groups participate in one condition each
    • Repeated Measures is where the same group of participants participate in both conditions
    • Counterbalancing is used in repeated measures design in order to reduce order effects (ABBA technique)
    • Independent groups design does not have order effects
    • Independent groups design requires a large amount of people
    • Repeated measures removes individual differences
    • Repeated measures design is time-consuming
    • Matched pairs design controls individual differences
    • Matched pairs design does not have order effects
    • Matched pairs design is time-consuming and difficult to do accurately
    • Quasi-experimental designs seeks to evaluate the casual relationships between variables but without full control over the independent variable
    • Non-equivalent control group design is a quasi-experimental design where two groups of participants are selected that are similar in every way except for the independent variable and one group receives experimental treatment while the other is a control
    • Interrupted Time-Series design is a quasi-experimental design where data is collected on the dependent variables over a period of time both before and after an intervention to determine whether there was a significant change
    • Pretest-Posttest design is a quasi-experimental design where the dependent variable is measured before and after an intervention (without a control group)