2021 NEW SERIES for SPSS 27:    • Introduction to Statistics with SPSS ...  
You use a paired samples t test in two research designs. One, you conduct a study with a before-and-after design, in which you measure the same sample at two different times with a treatment in between. Two, you have paired participants, such as a study of twin pairs, matched samples, or even puppy siblings from the same litters (see the extended video below). This test is variously called “repeated measures t test,” “repeated t test,” “paired t test,” or “paired samples t test.” All of them use the “within subjects” design. In this video, you will also learn about how to interpret the output of this test.

For more training about how to use SPSS, please check out these videos.
How to do a Paired Samples t Test in SPSS:    • How to do a Paired Samples t Test in ...  
How to Set Up Your Data for Independent or Repeated Measures t Tests in SPSS:    • How to Set Up Your Data for Independe...  

This video uses a dataset we create in the first video of the series and SPSS version 24

Link to a Google Drive folder with all of the files that I use in the videos including spreadsheets, and the Bear Handout. As I add new files, they will appear here, as well.
https://drive.google.com/drive/folder...
To download, hover your cursor over the file icon and a blue download icon will appear. You do not need to request access to a file.

Permissions: Statistics instructors, you are granted permission to link to this video and all videos on this channel for teaching introductory statistics. If you use them, I would love to hear about where they are being used so I can document for professional service. – Dr. Daniel