Paired-Samples T Test with Assumption Tesing using SPSS

This video demonstrates how to conduct a paired-samples t test (dependent-samples t test) in SPSS including testing the assumptions. The assumptions include the differences between the dependent variables being normally distributed and the absence of outliers.

[carriefawcett]

Yay!! Dr Grande to the rescue again!! You have been my saviour throughout this course. Thankyou and greetings from Stanthorpe QLD Australia 🇦🇺

[elnazabaie]

Thank you so much for providing this video; it was really helpful and simple to understand.

[anahgalloway]

I was grateful that this video was posted this semester. The information on testing for assumptions was very helpful for my research proposal paper!

[rachidenglish]

Now it's Corona time and the video is still helpful. Thank you for your great efforts.

[vanessagraham]

This was very understandable and I was able to follow along without any confusion about the data.

[amylin]

Hi Dr. Grande. Best video Ive seen for SPSS! My question is why did you use pre-post and not post-pre for the difference?

[sharonyap]

Thank you very much! This video is helpful for my thesis!

[kyarapanula]

Firstly, the sound quality is MUCH BETTER on the newer videos! Thank you!
Secondly, I chose to watch this video as yet another method of instrument comparison. Also, I'm curious about assumption testing, such as Tukey's or Scheffe's.

[timstauffer]

Thank you. This was very helpful in understanding paired samples and how to transform and create a new variable.

[bradleyfairchild]

This one was very helpful with our homework and very educational. Thanks.

[josed.suarezt.]

Hello, Dr. Grande. When we're in the presence of Paired continuous samples, but the third variable called "difference" is not normally distributed (e.g., both Kolmogorov-Smirnov and Shapiro-Wilk normality tests showing p-values even less than 0.01): (1) Is it meaningful to use this Paired-Samples T-Test?; if not, (2) Is there a non-parametric test in SPSS for paired -continuous- samples? Thanks in advance.

[cindycedeno]

Greetings,
Could you please recommend me what test or procedure I should follow in a case where there is one single group subjected to 2 experimental treatments (teaching methods for vocabulary acquisition) evaluated in two times (immediate test and delayed test). Assuming that in both treatment process (teaching methods for vocabulary acquisition) the sets of words are different but with the same degree of complexity?

I need to compare the means difference between both methods and determine which teaching method contributes to better gains in regards to retrieved/recalled words through the time.
Thank you,

[havizul]

Please explain why the values which tested for normality is the difference of pretest and posttest ?

Why not each of pretest and posttest data should be tested ?

Please explain and the references of the theory ?

[gokularora]

is it always before-after for finding out the normality?

[kimeeshareedwalker]

I wonder if the tables didn't show normal distribution can you predict that the results would lack significant a between to pre test and post test.

[abdulwali]

is there any sort of sample size limitation in Paired T test?

[bhaswatiadhikary]

sir, my sample size is 1080 and distribution is positively skewed, can I still proceed with the paired-sample t-test? The data is about total household healthcare expenses in a year

[statisticsmeh]

hello sir,
Could you please clarify me that there is any relationship between mean value and p-value when we interpret the result using t-test. because, for me there is one calculation that the difference of mean is only 0.5 to 1. but my p-value gives the result that i have to reject the null hypothesis. so that i am little confusing about how to interpret my data.

[rodymae]

Hello!
I have to compare dyadic traits so I calculated a paired-samples t test.
I am searching for similar traits in partners, so I have to look in the second table, isn`t that true?
What`s the name of that correlation?

[getsetgo]

How to find out test value? Where do i get it?