11. SPSS Classroom - How to Check Outliers and Normality in SPSS

[@Alhamzah_F_Abbas]

Thank you. For the normality test, we don't need to check the Kolmogorov-Smirnov and Shapiro-Wilk tests?

[@researchwithfawad]

Thanks for watching. Yes, not required

[@hspanaych]

Greetings sir If our data is only likert scale and in spss it’s coded as scale data We want to check normality that we can check through Skewness and kurtosis? Do we need to divide standard value and standard error value ?

[@researchwithfawad]

Thanks for watching. Yes you can assess the Skewness and Kurtosis.

[@ruqiarasoolbaba2337]

Salaam Sir, kindly enlighten me on how did you assemble all of your Dependent variable item into a single one? Like I have many items for dependent variable so how do I assemble them into a single DV scale?

[@researchwithfawad]

Pleas take the mean score of the individual items measuring the variable.

[@hameemislam753]

Sir should we divide skewness value with standard error the value we got from there should be in the range of +3-3 for skewness

[@researchwithfawad]

No. Do Not Divide.

[@hspanaych]

Greetings sir Do we need to check normality for likert scale?

[@researchwithfawad]

Thanks for watching l. Yes, you can check Skewness and Kurtosis

[@Divya_new]

Sir, Kindly suggest...If there are 40 statements for the DV, should we analyze individual statements for Skewness and Kurtosis?

[@researchwithfawad]

Yes, you may

[@hinasamreen7808]

Sir what if the skewness value for a scale is 2.64 and kurtosis is 7.68? Do these both value fall within the acceptable range? Secondly how can this issue be resolved?

[@researchwithfawad]

It is acceptable.

[@hinasamreen7808]

@@researchwithfawad thanks sir

[@sanadilawar2008]

Good one sir it would be better if you respected please can make us understand what is outliers why we check, what are their treatments etc

[@researchwithfawad]

Please refer to his video kzbin.info/www/bejne/naWrp6SenNF0mLs

[@hameemislam753]

Sir it would be helpful for scholars if u make a video on multivariate outliers mahalanobis distance

[@researchwithfawad]

Hopefully soon.

[@MohdSaleem-bt7sb]

Which type of data, we have to use Normality test

[@researchwithfawad]

Use Normality test for interval and ratio scale, those measured to assess interrelationship between constructs.

[@MohdSaleem-bt7sb]

@@researchwithfawad thank you sir. If ordinal data like likertscale have various statements, needs a normality test?

[@researchwithfawad]

You can check skewness and kurtosis.

[@bibliophile9350]

Sir, If my kurtosis score is above 4 or 5 like if for example my research kurtosis score for independent variable is 4.862, will it be acceptable for normality? The definition you added in the video gives the impression that above or below +-10, kurtosis score will be considered acceptable for data normality. Kindly help! Also your website is not working, it has huge amounts of valuable data for students like us, kindly fix that too.

[@researchwithfawad]

Please refer to this link imaging.mrc-cbu.cam.ac.uk/statswiki/FAQ/Simon#:~:text=The%20values%20for%20asymmetry%20and,between%20%E2%80%907%20to%20%2B7.

[@bibliophile9350]

@@researchwithfawad May Allah reward you in abundance sir! :) Thankyou very much!

[@researchwithfawad]

Ameen

[@talhamansoor7108]

Sir, is there possibility that after removing outliers from data our insignificant results turn significant?

[@researchwithfawad]

Yes, the results may also be significant after removing the outliers.

[@Wajiha_1172]

Sir mery variables ka relationship nhi nikal raha data change krny pe reliability khrab ho ri ha what can I do now sir please help

[@researchwithfawad]

Collect more data

[@poojakohli7944]

Sir sorry but im not able to understand that how the skewness value is within in the range?? if u are saying that it should be +/- 2 but your value is greater than +/-2.. how it is within the range. sorry but im not able to understand normality properly

[@researchwithfawad]

Skewness is +/-2 and Kurtosis is +/-10

[@poojakohli7944]

@@researchwithfawad sir can u please make a long video for this and how to correct swekness value, when there value is not within the range.

[@researchwithfawad]

Thanks for the suggestion. Sure, i can make one soon.

[@Wajiha_1172]

Can you help me sir ????

[@researchwithfawad]

You need to collect more data