normality test for extracted factor.

[Jugal Kishor]

Respected sir,

                       Good morning sir. Pls tell me Do we need to test the normality of the extracted factor from factor analysis for further analysis of these extracted factors.

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Thanks & Regards

Jugal Kishor

Research Scholar

FMS, Gurukula Kangri University

Haridwar

Mob- 7417949125

[Neeraj Kaushik]

Yes u shd check normality of the factors using 1 sample KS test

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[Amarbir Bhalla]

Respected Neeraj Sir,
Good Day!!

Sir, we need to check the normality of the factors extracted even if
the data has been measured on Likert Scale?
Regards,
A.S.Bhalla
Research Scholar,
Department of Commerce
and Business Management,
Guru Nanak Dev University,
Amritsar.

Contact No. +919463169631

[Neeraj Kaushik]

Dear ASB

Yes the extracted factors (from EFA) need to be checked for the normality coz Likert scale does not guarantee normality.

I've seen may cases where the factor scores were not normally distributed.

Best wishes

Neeraj

[Amarbir Bhalla]

Ok Sir, Thank you very much for your Invaluable guidance.
Regards.

A.S.Bhalla
Research Scholar,
Department of Commerce
and Business Management,
Guru Nanak Dev University,
Amritsar.

Contact No. +919463169631

[jugal77]

thank you so much sir fro your immediate help.

[Jugal Kishor]

Tests of Normalitya
Age		Kolmogorov-Smirnovb			Shapiro-Wilk
		Statistic	df	Sig.	Statistic	df	Sig.
FACTOR1	18-19 yrs	.170	6	.200*	.961	6	.831
	20-21 yrs	.190	111	.000	.900	111	.000
	22-23 yrs	.185	628	.000	.810	628	.000
	24 yrs or older	.186	3254	.000	.803	3254	.000
*. This is a lower bound of the true significance.
a. FACTOR1 is constant when Age = 17 yrs or younger. It has been omitted.
b. Lilliefors Significance Correction Gd afternoon sir,                          I have a confusion whether the above spss output is normally distributed or not because Shapiro-wilk sig. is greater than .05 for 18-19 age group but for others this is less tha .05. This is the normality test after factor analysis on extracted factor1. according to the table data is normally distributed for 18-19 yeras but not for others group of age. Should I consider this as normally distributed or Not normally distributed. how can I use Anova or H-test on this as You said earlier.

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[Neeraj Kaushik]

Dear JK
You're checking the normality for the each age group.

Plz check the normality of the dep var alone (not in group)

Plz use Analyze->Non parametric test->Legacy Dialog->1 sample KS test

Just send dep var to RHS pane and click ok

If Sig value>0.05, factor is normally distributed else not. {Plz note output will give u many rows, just see the last row of the table depicting sig value. Secondly just below the table it will be written: Test distribution is Normal. It is not the result/conclusion but the Null hypothesis for this table}

Best wishes
Neeraj

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[Jugal Kishor]

thank you very much sir, I got the solution. d way u guide its awesome. :) pls keep showering your blessings.