SPSS Instructions
Mean, Median, Standard Deviation, Variance etc... (these are generated automatically in this command)
Confidence Interval other than 95% and Lower and Upper quartiles for one (and two independent samples)
Test for Normality with one (or two independent samples)
One Sample T test
Paired Sample Ttests
Independent Two Samples Ttest
Regression
One Sample T test
Analyze Compare Means OneSample T Test...
Move the variable into test variable via the arrow. Put the value of the Null Hypothesis in as the test value ie
Null Hypothesis: m = 24
Alternative Hypothesis: m > 24
Please make sure you change it from zero as it will still do the test of significance but it will be wrong unless the value in the Null Hypothesis is zero.
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Test for Normality with one (or two independent samples)
Analyze Descriptive Statistics Explore Put variable into Dependent list (If 2 independent samples put Type into factor list, and Data into Dependent list)
Plots Click Normality with plots Continue OK
Look at ShapiroWilk Sig if this is bigger than 0.05 then the data is normally distributed.
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Confidence Interval other than 95% and Lower and Upper quartiles for one (and two independent samples)
Analyze Descriptive Statistics Explore Put variable into Dependent list (If 2 samples put Type into factor list and Data into Dependent list)
Statistics Change Confidence Interval for mean to new value and tick percentiles Continue OK
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Paired Sample Ttests
Transform Compute Variable Type the word ‘ Difference’ in the Target Variable Then Group 1 – Group 2 Continue
Now follow Test of Normality as before but with the variable ‘ Difference’
Paired Sample Ttests
Analyze Compare Means PairedSamples T Test Move the variables into Paired Variable 1 and Variable 2 ( Note the way the difference was taken back in transform and do the same order here) OK
Another method is to use one sample ttest with the difference One Sample T test
Analyze Compare Means OneSample T Test... Move the variable, difference into test variable via the arrow. Put the value of the Null Hypothesis in as the test value e.g.
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Independent Two Samples Ttest
In variable view Name one column Data, this should be numeric Name the other column Type or Group, this should be string, Then in values you can put your letters and labels (you can put words such as with device) must press add after each one. Please make sure that you put your data in the columns correctly. One column should have all the data, Second Column should be the groups
Analyze Compare Means IndependentSamples T Test Move the data variable to Test Variable Move the group variable(Type) to Grouping Variable Type(??) will appear, Click Define groups Put A (1) in Group 1 Put B (2) in Group 2
If you want the subtraction A  B, as SPSS will always take Group One  Group Two
Continue
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Regression
Put the data into two columns
Analysis Regression Linear
Put the yvalue in the dependent (this is the one to be predicted) Put the xvalue in the independent
Save Residuals Unstandardised Predicted ValueUnstandardised
For the Regression Line
Graph
Legacy Dialogs Interactive Scatterplot Put the xvalue horizontal Put the yvalue vertical
Fit Method Regression
For the Residual plot
Graph
Legacy Dialogs Interactive Scatterplot
Put the xvalue horizontal Put the sresid vertical
Fit Method Mean
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Mean, Median, Standard Deviation, Variance etc... (these are generated automatically in this command)
Analyze Descriptive Statistics Explore Put variable into Dependent list (If 2 independent samples put Type into factor list, and Data into Dependent list)
Plots
Tick or untick histogram, boxplot stem and leaf plot as required
Continue OK
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