# SPSS: Determining the direction

Background: Group A the control group uses a website 1. Group B the treatment group uses website B. The expected result is that Group B will have a higher understanding than group A. Hypothesis: The treatment group will show increased levels of understanding. A 1(Strongly Agree) - 7(Strongly disagree) likert survey was used, to measure understanding after the groups used either website 1 or 2.

I know using a two sample t-test will allow me to determine whether a significant difference was present. But how do I determine the direction of the difference through using SPSS? Still new to this. Thanks for the help.

• In the tables SPSS outputs for T-TEST the sample means are right there to tell you which group is higher or lower. – Andy W Jun 2 '14 at 15:13

• Sorry Matt, but I think this is incorrect: Non-overlapping CIs can still be "significant" (i.e. $p\leq0.05$). It's true that if the CIs don't overlap, a significance test will yield a significant p-value. But the opposite is not true. See here and here for example. – COOLSerdash May 25 '18 at 21:41