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Statistical Reference Guide
Compare pairs
Estimating the difference between means/medians (2 related samples)
Estimate the difference between the means/medians of 2 related samples.
Select a cell in the dataset.
On the
Analyse-it
ribbon tab,
in the
Statistical Analyses
group,
click
Compare Pairs
, and then click the effect size estimator.
The analysis task pane opens.
If the data consists of paired/repeated measurements in separate variables:
In the
Model
drop-down menu, select
Paired/Repeated
.
In the
Y
list, select the quantitative variables.
If the data consist of matched pairs with a separate response variable, factor variable, and blocking variable:
In the
Model
drop-down menu, select
Matched
.
In the
Y
drop-down list, select the quantitative response variable.
In the
X (factor)
drop-down list, select the categorical factor variable identifying the groups.
In the
Block
drop-down list, select the blocking variable identifying the matching.
In the
Difference
drop-down list, select the direction of the difference.
In the
Confidence interval
edit box, type the confidence level as a percentage, or type
-
to suppress the confidence interval, and then in the drop-down list, select the confidence bounds.
In the
Method
drop-down list, select the interval estimator.
Click
Calculate
.
Related concepts
Difference between means/medians effect size
Related reference
Dataset layout
Estimators for the difference in means/medians
What is Analyse-it?
Administrator's Guide
User's Guide
Statistical Reference Guide
Distribution
Compare groups
Compare pairs
Difference plot
Creating a Tukey mean-difference plot
Equality of means/medians hypothesis test
Tests for equality of means/medians
Testing equality of means/medians
Difference between means/medians effect size
Estimators for the difference in means/medians
Estimating the difference between means/medians
Study design
Contingency tables
Correlation and association
Principal component analysis (PCA)
Factor analysis (FA)
Item reliability
Fit model
Method comparison
Measurement systems analysis (MSA)
Reference interval
Diagnostic performance
Control charts
Process capability
Pareto analysis
Bibliography
Version 4.92
Published 16-Nov-2017