Research methods: experiments

Refers to how participants are allocated to the different conditions of the IV

• Experiments
• Experimental Designs

Experimental Designs are only found in experiments

• True- Only experiments have an IV & DV
• False- participants can be allocated to different groups in observations

Same participants are used in all the conditions of the IV

• Repeated Measures Design
• Independent Measures
• Matched Pairs

Different participants are used for each condition of the IV

• Repeated Measures
• Independent Measures
• Matched Pairs

Counterbalancing is used to removed order effects

• Repeated Measures Design
• Independent Measures Design
• Matched pairs

Participants are closely matched on relevant charactersitics after a pre-test

• Repeated Measures Design
• Independent Measures Design
• Matched Pairs

Differences in conditions maybe caused by Participant variables such as Individual Differences & Demand characteristics

• Repeated Measures Design
• Independent Measures Design
• Matched Pairs Design

No Order effects are Demand characteristics Occur

• Repeated Measures Design
• Independent Measures Design
• Matched Pairs Design

Very time consuming as a pre-test has to be conducted  and requires lots of participant for matching to be successful

• Repeated Measures Design
• Independent Measures Design
• Matched Pairs Design

Participant Variables are controlled by Random Allocation

• Repeated Measures Design
• Independent Measures Design
• Matched Pairs Design