Independent Samples T-Test using SPSS: How to Run, Interpret, and Report. (See Description for Link)
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- Опубликовано: 3 июл 2024
- The video discusses in detail the Independent Samples T-Test, how to run, interpret, and report Independent Samples T-Test using SPSS. Independent Samples T Test compares the means of two independent groups in order to determine whether there is statistical evidence that the associated population means are significantly different.
Video Contents
00:00 - Channel Intro
00:25 - Concept of Independent Samples T-Test
01:05 - Examples Scenarios
02:46 - Test Assumptions
04:11 - Reporting Template for Test Results
04:30 - Run Test in SPSS
05:24 - Interpreting the Results
07:59 - Reporting Test Results
For Notes and Stepwise Tutorial visit
researchwithfawad.com/index.p...
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Thank you so much for this video, Dr. Fawad.
Pleasure. I am glad you liked it.
10 years down the line and this video is still saving our lives 🙏
Thanks for watching.
Thank you so much!!! You’re a wonderful tutor!
Glad it was helpful!
thank you so much for this video! i was badly stuck in the analysis!!
Glad it helped!
Extremely grateful for the video. It was a savior for me. I was stuck with analysis and especially interpretation. Will be grateful if you can make another video on interpretation of Pearson's correlation and coefficient interpretation please.
Glad it was helpful! Here is a video on correlation analysis
ruclips.net/video/2BeYY8JgokU/видео.html
100% agree.
Thank you so much .This was easy to follow and understand.Many thanks
Thanks. I am glad you liked it.
So helpful in my data interpretation. Thank you.
Pleasure. I am glad you liked it.
Awesome video! Thank you so much!
Glad you liked it!
Thankyou so much sir Fawad.
Pleasure. I am glad you liked it.
Thank you so much sir!
Helped alot
Thanks. I am glad you liked it
Thanks for such informative vidio on this topic JazakAllah
Al hamdullilah. You are very welcome. Please do like, comment, and share.
Thank you for this video
Pleasure. I am glad you liked it.
Many Many thanks Sir❤️❤️❤️
Most welcome
Thank you so much, Sir. 🙂
Thanks. I am glad you liked it.
You have saved my life 😭😭❤️
Thanks for watching. Do share in your research circle.
thank you so much sirrrrrrrrrr
Pleasure. I am glad you liked it.
Thankk you!!
Thanks. I am glad you liked it.
thank you sir
Thanks for watching.
Very clear sir ☺️👍🏻
Thanks. I am glad you liked it.
Extremely helpful. Thank you very much. I found this video after being stuck for several days. This is a treasure. I have a question. You have answered a previous question. In case the construct has several items, I should find the overall mean of the construct. But what about the Sd or P-value and the other data?
Thanks. I am glad you liked it.
You will use the composite variable in the independent sample t test to assess differences between groups.
Thank you so much, very informative, clear, and straight forward
Thanks. I am glad you liked it.
Thank you for the great explanation, I just have 1 question which is, when presenting the data in the table format, as you did in the end, why did you not include the bit that says 'equal variances assumed' and instead replaced it with the G1, also I am wondering why G2 is blank in that case, wouldnt that make the table a little harder to interpret?
Pleasure. I am glad you liked it. There is one value of Levene as it is for comparison of variance between the two independent groups. If the p value under Levenes test is less than 0.05, then equal variance is not assumed.
thanks
You're welcome!
do you have a video for Mann Whitney Test?
Fantastic work, well explained. Can you please share the template you have used, APA?
Thanks. You can have the template from this link
researchwithfawad.com/index.php/lp-courses/data-analysis-using-spss/independent-samples-t-test-using-spss/
Hello! Thank you for this video. I am wondering what it means/what to do when SPSS is only giving me a 2 sided significance value. I have done everything to try and change this. Thank you!
Pleasure. In order to change it to one tailed, you can divide the Sig by 2.
Hi, thank you so much for all the videos you share with us. I have a question. I have a sample of 160 females and 37 males. I tried to do the t-test to compare those groups just like you did, however I had a negative t. Could it be due to the characteristics of the sample? And if so, does it mean I shouldn't proceed with this test?
Thanks for watching. Negative t value means Group 2 has higher mean value.
Hello sir, your video is a life saver! it is so easy to follow and understand whats happening. Thank you so much, what my lecturer couldn't explain in class, you can explain it clearly in just a few minutes *criesss thank youuuu
You are welcome!
Thank u so much Sir for such great effort. One query please:
Which technique is to be used to analyse one categorical variable ( male, Female) with 5 point likert scale ordinal data. As i have statements on 5 points, not the average of factors.
Or the test will be applicable on factors after applying factor analysis.
If the data is normally distributed use Independent Samples T Test otherwise use Mann Whitney U Test.
Hello, greetings. I am conducting study using quasi-experimental research design, which already violated one of the assumptions of parametric test i.e., random sampling. So, Am I going to employ non parametric tests for such violation violation of simple random sampling?
Hi. Not really, the test is robust to the assumption but it obviously can affect generalizations. You may still use the test.
Respected sir,
I am seeking your assistance in interpreting the following hypothesis.
Male mean= 3.1413 SD = .73550
Female mean = 3.2786 SD= . 68595
Levene' test for equality of variance. 179
t = -1. 592 df = 280 sig (2tail) =.113
95% CL = -. 30715 to . 03250
H1: there is significant difference in purchase behaviour for sustainable clothing between male and female.
I will be eternally grateful to you sir 🙏
Since the p value is greater than 0.05, your Hypothesis is rejected
This test shows that H1 will be rejected
Respected sir, This is a wonderful video explaining the concept of independent samples t-test. But I have one query, sir. Can you tell me what exactly is the value of "CL" you have considered in your video for calculating independent samples t test? Is it a mean score of all the Likert Scale-based questions on CL, or is it the summation of those or is it a z-score computed by EFA?
Regards
Thanks for watching. Yes, i have used the mean score.
You just saved my degree😂❤
Thank you.
Thanks a lot
Thanks. I am glad you liked it.
Respected sir,I would like to ask you,how can I do chi-square and logistics regression for the following two research questions;
1/To what extent the performance appraisal is effectiveness from the employee motivation perspective in OB bank?
2/what was the level of employee motivation toward performance appraisal effectiveness of OB bank?
Any test is based on how the variables are measured. Please relfer to Chi Squad test amd Binary logistic regression videos on the channel to assess if the tests suit how you have measured tue variables
I have seen research papers report manipulation check using independent sample t test. How do they do it? Instead of taking dependent variable can we take the mean score of a construct (lets say AI is manipulated and then likert scale items used instead of DV, to check manipulation)?
You can take mean score to assess differences in a variable between two groups.
Good afternoon sir, first of all thank you very much for a detailed video. However, I have one query, I have 3 constructs having 4, 4, and 6 dimensions respectively. in this case. how should I conduct the t-test? I have calculated the mean of dimensions (MEan of their items). do I need to calculate the mean of the calculated mean of dimensions or do I need to show the results for particular dimensions? Further, I would also know that in this kind of scenario, (for more than one independent variable such as levels of designation) we need to calculate ANOVA or manova?
Thanks for your comment and appreciation.
Yes, you will need to calculate the overall mean score for the construct.
If you have multiple IVs and factors use MANOVA.
I have an experimental design and i need to compare between pre of experimental and control group how do i do that ?.. for example i have put continuous variables in test variables and if i want to check based on gender..(males and females for both groups) how do i get that ? male from group 1 compared to males from group two .. please help
If you have a before and after test use Paired Sample T-Test, if you want to check for difference between two groups at one time, use Independent Sample T-Test. If you want to check for change in a dependent variable between times for a categorical variable like gender use General Linear Model -> Repeated Measures
Thanks for the video. I was recommended to do multigroup analysis . was told to conduct T-test to decide whether I shd carry out the test. Do u hv any test for Fimix in Smart PLS ?
Pleasure. I am sorry but nothing on FIMIX at the moment.
Respected Sir if we have equal variance not assumed, in that case should we use the bottom row? Please response. In this bottom row if the value is less than 0.05 than still we can say that the difference is significant.?
Yes use a test from the group equal variance not assumed.
How do we judge whether one tailed or two tailed value should be used?
If you know the direction of relationship, then it is one tailed, otherwise it is two tailed.
Hello Sir, thank u for this video .. I just wud like to ask, if i want to get the significant difference of the pre test of the control and experimental group, what ttest wud i use? Is it independent or paired? Thank u for the help
Thanks. I am glad you liked it. If there is a pre and post situation use Paired Sample T-test
Sir, can you explain on confidence interval?
A confidence interval provides possible range of values that the mean difference might be in the population.
would you please share the final table?
Please refer to
researchwithfawad.com/index.php/lp-courses/data-analysis-using-spss/independent-samples-t-test-using-spss/
sir how can i apply the same test for early and late response biasenes test using likert scale data plz make a video
Thanks for the suggestion.
Where did the number 1.96 come from? (@ 8:49)
Thanks for watching. This is t statistic used to assess if the effect is significant at 5% significance level (two tailed).
sir when i tried to conduct the test p value is .000 in both column. What does it mean??
This means the result is highly significant. P is less than 0.001.
can we use independent sample t test if levene test is significant?
Yes. Use Equal Varianve not assumed row.
Great session sir.. Sir here is one question sir we have two indicator that show whether there is any significant difference or not one is p. Valve should be less than. O5 and second is t valve should be greater than 1.98 if the sample size is great er than 30 so sir here is question that agr sig valve. 05 se less ho but second indicatoe match na kry mtlb agr t valve b less aye 1.98 se than tb ki situation mein hum kya consider karen gy apny research ko plz batye..
This will not happen. If your p value is less than 0.05, then your t Statistic for a two tailed test will definitely be over 1.96
@@researchwithfawad tq sir... Sir is t statistics and t valve or calculated valve are the same
AOA sir will please share you content or data of this video which you entered in spss?
Email me on kh.fawad83@gmail.com
I will share a sample data file for practice
Respected sir, I do have a question, what if the Sig. (2-tailed) is greater than .05, does it mean that there is significant difference in CL? or insignificant?
If p value is over 0.05, this means the hypothesis is insignificant and there are no differences.
thank you, sir. @@researchwithfawad
How to report is the P value is higher than 0.005 ? my P is ( .245). Should I also report the mean and sd for each group while writing ? This is what I've wrote : At Table X, an independent T-Test is conducted to compare MC for Male and Female Managers, There was no significant differences (T(158)= 1.138, p=.257>0.05). The magnitude of the differences in the mean ( mean difference = 0.88, 95% CI: -.065 to .242) was not significant
Yes, report means and SD of both groups.
I have 2 independent & 1 dependent variable i.e independent varriabe are- gender ( m & f) and smoking type with 3 subcategories(i.e chain somoker , nonsmoker, casual smoker )
i want perform this in layering i.e somker having (m &f count) then mean and sd of each then t value and significance value and so on for all the subcategories
How can i do it?
Layering? Like the differences in DV for each make and female?
@@researchwithfawad yes...
What I did is mentioned below... but I'm not sure is it fine to do this way or not...
My dependent variable is depression inventory score
1) I did 't test ' by splitting the file ( by smoker type/ status wise which is one of my independent variable) i made 3 seperate files in order to run the t test
2) I did chi square on my main file but there is a violation in that also I did not get fisher test value ... So which value to use ?
Hi sir. My question is if I have a hypothesis about whether the mean of group 1 minus the mean of group 2 is greater than some threshold like H0: u1-u2D0.
How can I perform it in Independent-Samples T Test in SPSS?
You can subtract the two mean values to create a new variable and then use one sample t test for comparison.
Thank you for your answer, sir. I will perform it
My test doesn't show significant(2- tailed) instead of that it show one sided p and 2 sided p now what do i conduct here
If you have proposed that one group with ha e higher value than the other, use one tailed. Otherwise use two tailed
Can we use independent sample t test for Gender and 5 statements in likertscale
If you make a composite variable you can, for individual statements on Likert scale use Mann Whitney U Test
what do you mean there is no zero in between in the upper and lower levels? 10:05
For example Lower Level Confident Interval is 0.06123 and the Upper Level is 0.6781. There is no 0 in between the two values, this shows that the differences are significant.
Sir, where I can find your video on normality
If you are planning to use Kolgomorov-Smirnov, Just search it on RUclips. Hopefully, i can make one over the weekend and upload it.
Sir, how can we report both p value are bigger than .05
This shows insignificant difference.
@@researchwithfawad thank you so much sir you save my life again
Is it possible to get in touch with you for a question?
You can email me on kh.fawad83@gmail.com
Hello sir my research hypothesis is trying to find the gender differences between two questionnaires, what type of t test should I be using
Two Questionnaires? Are they responding to different questions?
@@researchwithfawad yes two different questionnaires, I have a correlation hypothesis between the two relationship and another hypothesis for differences between male and female respondents.I am not sure what t test to use for the gender differences
Sir, can you share the data which you are using as a example.
Please email me on kh.fawad83@gmail.com
For the data, I shall email you too, Sir.
💝𝐏𝐆
Assalamualaikum
I want to cleat one concept
If we have highest mean score at a scale
Is it necessary that we should have lowest standard deviation at the same scale??
Sd should be low, but I haven't read any such criteria.
Hi Sir ! I'm doing research on impulse buying in ho chi minh city... Can you guide me how to analyze multigroup use Smart Pls ... Thank you very much!
Hi. Do you have any groups in your research like Gender or Consumer Income Levels. If so you can use Smart-PLS for Multi-Group Analysis.
Here is a tutorial on MGA
ruclips.net/video/sADsHKyOsS0/видео.html
@@researchwithfawad I have gender, age, marriage, job, education, income level...Sir
Now you have to decide which on do you want to use for MGA, you can use Gemder, and income levels
@@researchwithfawad Thank you for your guide... Have a nice day Sir
@@researchwithfawad pls mga why not apply on others like age, education if not then which technique will apply for it
Hello thank you for this video is there a way we can connect with you?
Thanks. You can email me on kh.fawad83@gmail.com
Can we do this on Excel please ?
There must be an excel formula. I am afraid i haven't yet focused on excel for my videos.
@@researchwithfawad many thanks
Thanks uuuuu to the core .... 💙💙💙🫶🫶🫶🫶🫶🫶🙏🙏🙏🙏 You saved my mental peace today 🥺
Great. I am glad the video was helpful.