chanyeolears 2,221 Posted October 6, 2018 Share Posted October 6, 2018 Does anyone know the definition of T-test, what is it for, and please give me an easy example of it. And also independent t-test and dependent t-test. I've googled it but I couldn't understand :( Link to comment Share on other sites More sharing options...
hFraSone 218 Posted October 6, 2018 Share Posted October 6, 2018 I have the same problem, also when do you use t-test, -test or anova. I fucking hate statistics Link to comment Share on other sites More sharing options...
Franny 11,098 Posted October 6, 2018 Share Posted October 6, 2018 I only remember how to do it in Excel. Also, in independent t-test, you have two different group (for example, male and female) and you have to compare means between them. in dependent t-test, two groups are related and you have to compare means to see what is the difference between them. you should watch tutorials probably. Link to comment Share on other sites More sharing options...
Chu chu~ 2,534 Posted October 6, 2018 Share Posted October 6, 2018 I done this a couple years ago so my memory isn't the best, I had to google it to remind myself. Hopefully I can summarise it so it's easy to understand. Also btw this is my understanding of it through how I learnt it whilst studying psychology, I hope it makes sense for you. A t-test is normally used when you have two sets of data and you want to see if there's a significant difference between them. For example in a school, 90% of girls might have achieved grades A-C whereas 80% of boys achieved grades A-C. You know that there's definitely a difference between them but if you run the test you'll find out if that difference is even worth anything (if it's significant enough to mean anything). An independent t-test is used when you have different independent variables (two groups; boys and girls) and the same dependent variable (one thing that you're measuring; school grades). If you want to run a test on the example I used above, then you would use this test. You're basically just comparing the grades from boys and the grades from girls to see if there's a significant difference between each group. A dependent t-test is used when you have the same independent variable (only one group that you're testing; i.e. girls) and different dependent variables (two different things that you have measured). If you wanted to see if girls performed significantly better in their winter exams, compared to their summer exams, you would use this test. Link to comment Share on other sites More sharing options...
Khyler 293 Posted October 6, 2018 Share Posted October 6, 2018 Link to comment Share on other sites More sharing options...
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