Matched Pairs

Created by

Amber Foster

Cards (32)

How does a matched pairs design ensure similarity between groups?
By matching participants based on key factors
What are the two groups in a matched pairs design?
Control group and experimental group
How can strict matching criteria introduce bias in matched pairs design?
It may exclude participants without matches
Why does matched pairs design require fewer participants?
Each participant has a corresponding counterpart
What are the steps in the process of matching participants?
Identify relevant matching variables (e.g., age, IQ)
Create a paired list of participants with similar scores
Randomly assign one from each pair to control group
Randomly assign the other to experimental group
Ensure groups are balanced except for the studied variable
Reduce extraneous variables
Why is it important to minimize extraneous variables in research?
To ensure results are due to the treatment
How does matched pairs design reduce extraneous variables?
By matching on key factors for similarity
What are the main advantages of matched pairs design?
Reduces extraneous variables
Requires fewer participants
Enables paired comparison
What is the purpose of random assignment in matching participants?
To ensure balanced groups except for the studied variable
What is the first step in matching participants?
Identify relevant matching variables
What should you do after identifying matching variables?
Create a paired list of participants
How are participants paired in a matched pairs design?
By matching on specific key variables
Why is pairing important in a matched pairs design?
It minimizes differences except for the tested factor
How does matching participants reduce extraneous variables?
By balancing groups on relevant characteristics
Why can matching difficulties be costly in matched pairs design?
It requires significant resources to find pairs
In a sleep study, what might complicate matching individuals?
Age and baseline memory precision
What are the key components of a matched pairs design?
Reduces extraneous variables
Matches participants on key factors
Compares control and experimental groups
How does paired comparison improve research outcomes?
Facilitates direct comparison between individuals
What is a limitation of matched pairs design related to matching participants?
Finding perfect pairs can be challenging
What does identifying and matching participants add to an experiment?
It adds to the overall experimental time
What are the limitations of matched pairs design?
Matching difficulties: challenging and costly
Potential bias: strict criteria may exclude participants
Time-consuming: adds to overall experimental time
Why are matching variables important in participant matching?
They influence the results of the study
What is a benefit of paired comparison in matched pairs design?
Provides more precise and accurate results
In a sleep and memory study, what factors might participants be matched on?
Age and memory scores
How would you implement a matched pairs design in a study on sleep and memory?
Identify key variables (e.g., age, memory scores)
Create two groups: sleep-deprived and normal sleep
Match participants based on identified variables
Conduct the experiment to compare outcomes
What is done with the paired participants in the matching process?
Randomly assign one to control, one to experimental
What is a matched pairs design?
An experimental design with paired groups
What is one advantage of matched pairs design?
Reduces extraneous variables
What is another limitation of matched pairs design regarding time?
It is time-consuming to identify participants
How many participants are needed in matched pairs design compared to independent groups?
Fewer participants are needed
Why is it important to match participants in a matched pairs design?
To ensure differences are due to the studied variable
What is the main purpose of a matched pairs design?
To reduce the impact of extraneous variables