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Paired t-tests (Worksheet)

This yourself worksheet provides an introduction to paired t-tests. The focus is on hand calculation but does include some notes on how to do a paired t-test using SPSS.

Paired t-tests Using SPSS (Worksheet)

This yourself worksheet provides an introduction to undertaking paired t-tests using SPSS. Note that the SPSS data sets referred to in the worksheet are also available here.

Paired t-tests Using SPSS (Worksheet) Data Sets

This is a zip file containing the SPSS data sets called marks.sav and spiders.sav for use with Paired t-tests Using SPSS (Worksheet). Note: please save this file to your PC before extracting its contents.

Pearson Correlation

A Quick Reference worksheet on Pearson Correlation. This resource has been contributed to the statstutor Community Project by Mollie Gilchrist and Peter Samuels, Birmingham City University and reviewed by Ellen Marshall, University of Sheffield.

Pearson Correlation - Video Tutorial with Dr Iain Weir

In this video Dr Iain Weir (University of the West of England) explains what Pearsons Correlation Coefficient is , when its okay to use it, how to calculate it using SPSS and also a calculator, and how to intrepret the value of the coefficient and test its significance. A written introduction using the same examples is available as a Quick Reference resource at this site. You could also use the Test Yourself Quiz after reviewing this video.

Principal Components Analysis (Worksheet)

Principal Components Analysis (PCA) is a multivariate technique aimed at reducing the number of variables in your data set so that your new variables (components) are uncorrelated. This teach yourself worksheet gives a very brief introduction to PCA and how to perform this using SPSS. This includes some useful references at the end. Note: The "Analyze" --> "Data Reduction" step in SPSS (see page 2) in SPSS has now been changed to "Analyze" --> "Dimension Reduction"

Recode a scale variable into categories in SPSS

This video shows how to create and define groups or bands for a scale variable in SPSS using 'recode into different variable'. This changes the level of measurement from scale to ordinal. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.

Recoding Variables in SPSS (Worksheet)

This teach yourself worksheet explains how to recode data or create codes for a new grouping variable in an SPSS data set.

Reduce the number of groups of a categorical variable in SPSS

This video explains how to reduce the number of groups of a categorical variable in SPSS using 'recode into different variables'. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.

Reliability Measures (Worksheet)

This teach yourself worksheet provides an introduction to the assessment of reliability and repeatability in measurements scales, such as those used in questionnaires. Note that the SPSS and Excel data sets rankin.sav and rankin.xlsx referred to in the worksheet are also available here.

Reliability Measures (Worksheet) Data sets

This is a zip file which contains the SPSS data set rankin.sav and Excel data rankin.xlsx for use with the Reliability Measures Worksheet. Note: please save this file to your PC before extracting its contents.

Repeated measures bar or line chart of means in SPSS (with optional error bars)

How to use SPSS to create a bar or line chart of means with repeated measures data, including how to add error bars and confidence intervals. This resource from the "SPSS Tutorial Series" is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Ellen Marshall, University of Sheffield. It was developed with sigma resource development funding.

Repeated measures clustered bar or line chart of means in SPSS (with optional error bars)

How to use SPSS to create a clustered bar or line chart of means with one repeated measure, including how to add error bars and confidence intervals. It is not possible to create a clustered chart of means with two repeated measures using the chart builder in SPSS. However, you can create a line chart of means for two repeated measures by running a 2-way repeated measures ANOVA. This resource from the "SPSS Tutorial Series" is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Ellen Marshall, University of Sheffield. It was developed with sigma resource development funding.

Reverse the coding of a variable in SPSS

This video explains how to use 'recode into different variables' to reverse the coding of a variable in SPSS. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.

Run a paired t-test in SPSS

How to use SPSS to run a paired t-test This resource from the "SPSS Tutorial Series" is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Jonathan Gillard, Cardiff University. It was developed with sigma resource development funding.

Run an independent t-test in SPSS

How to use SPSS to run an independent two sample t-test. This resource from the "SPSS Tutorial Series" is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Jonathan Gillard, Cardiff University. It was developed with sigma resource development funding.

Scatterplot with trend line in SPSS

How to use SPSS to create a scatterplot and add a trend line (a linear trend line is sometimes referred to as a regression line). This resource from the "SPSS Tutorial Series" is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Ellen Marshall, University of Sheffield. It was developed with sigma resource development funding.

Select a random sample of data or range of cases to analyse in SPSS

How to use SPSS to select a random sample of cases to analyse from your data set. This resource from the "SPSS Tutorial Series" is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Alun Owen, University of Worcester. It was developed with sigma resource development funding.

Select specific cases to analyse in SPSS

How to use SPSS to select specific cases (i.e. rows of data) to analyse. This can be individual case selections or groups of cases (e.g. select all males/females, etc.). This resource from the "SPSS Tutorial Series" is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Alun Owen, University of Worcester. It was developed with sigma resource development funding.

Simple linear regression

A Quick Reference worksheet on simple linear regression. This resource has been contributed to the statstutor Community Project by Mollie Gilchrist and Peter Samuels, Birmingham City University and reviewed by Ellen Marshall, University of Sheffield.

Simple Linear Regression (Worksheet 1)

Using an example on energy consumption, this teach yourself worksheet introduces simple linear regression and how to fit and interpret Linear Regression models using SPSS.

Simple Linear Regression (Worksheet 2)

Using an example on calcium intake, this teach yourself worksheet introduces simple linear regression and how to fit and interpret Linear Regression models using SPSS. Note that the SPSS data set calcium.sav referred to in the worksheet is also available here.

Simple Linear Regression (Worksheet 2) SPSS Data Set calcium.sav

This is a zip file containing the SPSS data set called calcium.sav for use with Simple Linear Regression (Worksheet 2) which considers an example on calcium intake. Note: please save this file to your PC before extracting its contents.

Simple Linear Regression Assumptions and Predictions (Worksheet)

This teach yourself worksheet looks at the assumptions underlying simple linear regression, and how to obtain confidence intervals and prediction intervals using SPSS.

Simple linear regression: Additional information

A Quick Reference worksheet containing a discussion of additional issues to do with simple linear regression. This resource has been contributed to the statstutor Community Project by Mollie Gilchrist and Peter Samuels, Birmingham City University and reviewed by Ellen Marshall, University of Sheffield.

Spearman's Rank Correlation - Video Tutorial with Dr Iain Weir

In this video Dr Iain Weir (University of the West of England) explains when you should use SPEARMAN'S RANK correlation coefficient (rather than the usual Pearson Correlation Coefficient). He also shows how to calculate it using SPSS and also a calculator, and how to intrepret the value of the coefficient and test its significance. A written introduction using the same examples is available as a Quick Reference resource at this site. You could also use the Test Yourself Quiz after reviewing this video.