A A A
Manual Event (Session ID,DateTime,Event) = ojb3rv3sl3nptogugu19f3vji6 20210730052625 /communities/normality-of-variable/

normality of variable

Share:
Whtasapp
Topic Discussions

Hello! I’m Dr. MEL. Nice to meet you! I’m absolutely excited that we are going to start this beautiful learning journey together and I’m sure you will find it fruitful and fulfilling. Feel free to share your thoughts here!

Recent Activity Discussions

Got questions? Simply post them and let’s discuss! 

Discussion thread: General
kursten
26 November 2019
normality of variable

How I can check the normality of each variable?

Reply
Like
Share
Whtasapp
Jason Jiang
20 February 2020

There are two main methods of assessing normality: graphically and numerically.

Graphical interpretation has the advantage of allowing good judgement to assess normality in situations when numerical tests might be over or under sensitive, but graphical methods do lack objectivity. If you do not have a great deal of experience interpreting normality graphically, it is probably best to rely on the numerical methods. SPSS Statistics allows you to test all of these procedures within Explore... command.

Reference: https://statistics.laerd.com/spss-tutorials/testing-for-normality-using-spss-statistics.php

Replies
Like
Share
Whtasapp
Hobbs
10 February 2020

Then what to do if the scores is not normally distributed nor a straight line?

Replies
Like
Share
Whtasapp
imir88
26 November 2019

It can be checked by using a scatterplot. When you look at a scatterplot of scores, a straight line should be shown (roughly), rather than a curve.

Replies
Like
Share
Whtasapp
kursten
26 November 2019

Thanks imir. How about linearity?

Replies
Like
Share
Whtasapp
imir88
26 November 2019

It can be checked by inspecting the histograms of scores on each variable. If the scores are normally distributed, you could see a bell-shaped curve.

Replies
Like
Share
Whtasapp
Latest Posts
More posts
Could participation in leisure activities benefit the elderly’s well-being?
Could participation in leisure activities benefit the elderly’s well-being?
Windy Chan
30 July 2021
3Replies,0Months ago
Like
Share
Whtasapp
What is relationship between physical functioning and successful aging?
What is relationship between physical functioning and successful aging?
Windy Chan
30 July 2021
3Replies,0Months ago
Like
Share
Whtasapp
What is the relationship between cognition and successful aging?
What is the relationship between cognition and successful aging?
Alton Lo
29 July 2021
3Replies,0Months ago
Like
Share
Whtasapp
How do social and environmental factors impact successful aging?
How do social and environmental factors impact successful aging?
Alton Lo
29 July 2021
3Replies,0Months ago
Like
Share
Whtasapp
Featured Posts
Questions about program evaluation and impact assessment (PE & IA)?
Dear MEL participants, Hello everyone! We are going to meet Prof. Aron Shlonsky this week (17&18 Oct). Do you have any problems or issues in program evaluation and impact assessment? Pleas ...
meladmin
15 October 2019
0Replies,21Months ago
Like
Share
Whtasapp
Question about the programme evaluation
Can someone recommend me a basic guide book for programme evaluation? We are an NGO in mainland China and providing services for young drug abusers in rural China. We learnt about your pro ...
Jessica
9 October 2019
4Replies,21Months ago
Like
Share
Whtasapp
Ask for more information about the logic model
I have watched the cartoon of the logic model and it is really useful for our programme evaluation. May I obtain some further references of the logic model? Thanks!
Marleen
5 October 2019
3Replies,21Months ago
Like
Share
Whtasapp
Seek for advice on Programme evaluation
Hi! We work for the ethical minority group in Hong Kong. The ultimate goal of our organisation is to make changes to public policies, such as to the education system or medical service. We spe ...
Aurielle Lee
2 October 2019
4Replies,21Months ago
Like
Share
Whtasapp