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*Unverified author*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Sat, 02 Apr 2011 06:55:11 +0000

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Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2011/Apr/02/t13017281140a8hmpltkrenowo.htm/, Retrieved Sun, 09 Nov 2025 07:42:35 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=119931, Retrieved Sun, 09 Nov 2025 07:42:35 +0000

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No (this computation is public)

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Estimated Impact

401

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)

-       [Cronbach Alpha] [] [2011-04-02 06:55:11] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Boxplots

3	3	3	3	2	2	3	2	3	4	1	2	1	2	3	1	1	3	2	3	2
5	3	3	3	4	4	4	1	1	1	3	1	1	1	1	2	5	1	2	1	2
3	1	2	3	3	4	4	1	1	1	2	1	1	1	1	1	2	4	3	2	4
1	2	2	2	2	4	4	2	2	4	4	2	2	2	4	2	3	4	3	4	4
4	2	4	1	4	5	3	2	1	4	5	2	2	5	3	5	2	3	2	1	1
5	4	4	3	4	5	3	2	5	1	2	5	1	1	2	2	2	2	3	2	2
2	3	2	2	3	2	3	2	3	2	3	3	2	3	4	3	2	4	4	3	4
5	5	4	2	4	3	4	3	3	1	2	1	1	3	2	1	1	1	2	2	2
5	3	4	3	2	2	4	1	2	2	5	2	2	1	5	5	5	1	5	4	5
1	1	1	1	1	1	1	1	1	2	1	5	1	4	1	5	1	5	5	5	5
2	2	1	2	4	3	4	2	2	1	2	1	2	2	2	3	2	3	3	2	2
1	1	1	1	1	3	4	1	2	1	3	1	2	1	4	2	4	5	3	2	2
3	2	3	3	3	3	3	2	3	1	2	2	3	1	3	3	2	1	1	1	1
3	3	3	3	3	3	3	3	1	2	2	2	1	1	2	1	1	1	1	1	1
2	1	2	2	2	2	3	1	2	1	1	1	1	1	3	3	4	4	2	2	4
3	1	1	5	5	5	5	1	5	5	5	1	2	5	1	1	1	5	1	1	5
2	2	3	4	2	2	3	1	2	3	2	1	1	1	2	2	2	4	3	4	4
2	2	4	5	3	4	4	2	2	5	3	2	1	1	4	2	2	4	3	4	4
4	3	4	4	4	2	4	2	3	1	2	1	1	2	5	2	2	2	1	1	2
4	3	4	3	3	2	3	2	4	2	4	2	2	2	3	2	2	2	4	3	3
2	2	3	3	3	2	3	2	3	2	4	2	4	3	3	2	2	4	3	2	3
3	3	2	3	3	4	3	2	4	1	3	2	1	3	2	4	1	2	1	5	3
3	3	3	2	2	2	3	2	2	3	4	2	1	1	4	2	2	3	3	3	3
2	3	4	3	4	4	3	2	2	1	1	1	1	2	4	4	3	2	3	3	4
3	3	2	2	3	2	4	2	3	1	4	2	2	2	4	4	4	2	2	2	4
4	4	4	3	4	5	5	4	3	5	4	4	3	3	1	1	1	1	1	1	1
5	4	5	4	5	2	5	4	5	4	4	3	2	4	1	1	1	2	2	2	1
2	3	3	2	3	3	4	2	2	3	4	2	4	3	4	4	3	2	4	2	2
2	2	3	3	4	3	4	2	2	2	1	1	1	1	1	1	1	1	1	1	1
3	3	3	4	4	2	5	2	5	3	2	2	1	3	2	2	3	3	2	3	2
5	4	3	5	3	5	5	5	4	5	4	5	5	5	4	5	5	4	5	3	4

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	1 seconds
R Server	'Herman Ole Andreas Wold' @ www.yougetit.org
R Framework error message	The field 'Names of X columns' contains a hard return which cannot be interpreted. Please, resubmit your request without hard returns in the 'Names of X columns'.

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 1 seconds \tabularnewline
R Server & 'Herman Ole Andreas Wold' @ www.yougetit.org \tabularnewline
R Framework error message & The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'. \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=119931&T=0

[TABLE]
[ROW][C]Summary of computational transaction[/C][/ROW]
[ROW][C]Raw Input[/C][C]view raw input (R code) [/C][/ROW]
[ROW][C]Raw Output[/C][C]view raw output of R engine [/C][/ROW]
[ROW][C]Computing time[/C][C]1 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Herman Ole Andreas Wold' @ www.yougetit.org[/C][/ROW]
[ROW][C]R Framework error message[/C][C]The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=119931&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=119931&T=0

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	1 seconds
R Server	'Herman Ole Andreas Wold' @ www.yougetit.org
R Framework error message	The field 'Names of X columns' contains a hard return which cannot be interpreted. Please, resubmit your request without hard returns in the 'Names of X columns'.

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7502	0.7576	0.957	0.1295
q1 excluded	0.7389	0.7428	0.9435	0.1262
q2 excluded	0.7389	0.7428	0.9479	0.1262
q3 excluded	0.7472	0.7527	0.9532	0.1321
q4 excluded	0.7384	0.7442	0.9469	0.127
q5 excluded	0.7535	0.7594	0.9443	0.1363
q6 excluded	0.7458	0.7523	0.9571	0.1318
q7 excluded	0.739	0.7431	0.9509	0.1264
q8 excluded	0.7318	0.734	0.95	0.1212
q9 excluded	0.7353	0.741	0.9492	0.1251
q10 excluded	0.725	0.7348	0.9482	0.1217
q11 excluded	0.7215	0.7319	0.9474	0.1201
q12 excluded	0.7302	0.7394	0.9497	0.1242
q13 excluded	0.7264	0.7333	0.9419	0.1209
q14 excluded	0.7245	0.7347	0.9466	0.1216
q15 excluded	0.7506	0.7591	0.9507	0.1361
q16 excluded	0.7444	0.7546	0.9463	0.1332
q17 excluded	0.7487	0.7571	0.9532	0.1348
q18 excluded	0.7654	0.7735	0.9538	0.1458
q19 excluded	0.7388	0.7507	0.9484	0.1309
q20 excluded	0.7544	0.7656	0.946	0.1404
q21 excluded	0.7521	0.7625	0.9569	0.1383

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7502 & 0.7576 & 0.957 & 0.1295 \tabularnewline
q1 excluded & 0.7389 & 0.7428 & 0.9435 & 0.1262 \tabularnewline
q2 excluded & 0.7389 & 0.7428 & 0.9479 & 0.1262 \tabularnewline
q3 excluded & 0.7472 & 0.7527 & 0.9532 & 0.1321 \tabularnewline
q4 excluded & 0.7384 & 0.7442 & 0.9469 & 0.127 \tabularnewline
q5 excluded & 0.7535 & 0.7594 & 0.9443 & 0.1363 \tabularnewline
q6 excluded & 0.7458 & 0.7523 & 0.9571 & 0.1318 \tabularnewline
q7 excluded & 0.739 & 0.7431 & 0.9509 & 0.1264 \tabularnewline
q8 excluded & 0.7318 & 0.734 & 0.95 & 0.1212 \tabularnewline
q9 excluded & 0.7353 & 0.741 & 0.9492 & 0.1251 \tabularnewline
q10 excluded & 0.725 & 0.7348 & 0.9482 & 0.1217 \tabularnewline
q11 excluded & 0.7215 & 0.7319 & 0.9474 & 0.1201 \tabularnewline
q12 excluded & 0.7302 & 0.7394 & 0.9497 & 0.1242 \tabularnewline
q13 excluded & 0.7264 & 0.7333 & 0.9419 & 0.1209 \tabularnewline
q14 excluded & 0.7245 & 0.7347 & 0.9466 & 0.1216 \tabularnewline
q15 excluded & 0.7506 & 0.7591 & 0.9507 & 0.1361 \tabularnewline
q16 excluded & 0.7444 & 0.7546 & 0.9463 & 0.1332 \tabularnewline
q17 excluded & 0.7487 & 0.7571 & 0.9532 & 0.1348 \tabularnewline
q18 excluded & 0.7654 & 0.7735 & 0.9538 & 0.1458 \tabularnewline
q19 excluded & 0.7388 & 0.7507 & 0.9484 & 0.1309 \tabularnewline
q20 excluded & 0.7544 & 0.7656 & 0.946 & 0.1404 \tabularnewline
q21
 excluded & 0.7521 & 0.7625 & 0.9569 & 0.1383 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=119931&T=1

[TABLE]
[ROW][C]Cronbach Alpha and Related Statistics[/C][/ROW]
[ROW][C]Items[/C][C]Cronbach Alpha[/C][C]Std. Alpha[/C][C]G6(smc)[/C][C]Average R[/C][/ROW]
[ROW][C]All itmes[/C][C]0.7502[/C][C]0.7576[/C][C]0.957[/C][C]0.1295[/C][/ROW]
[ROW][C]q1 excluded[/C][C]0.7389[/C][C]0.7428[/C][C]0.9435[/C][C]0.1262[/C][/ROW]
[ROW][C]q2 excluded[/C][C]0.7389[/C][C]0.7428[/C][C]0.9479[/C][C]0.1262[/C][/ROW]
[ROW][C]q3 excluded[/C][C]0.7472[/C][C]0.7527[/C][C]0.9532[/C][C]0.1321[/C][/ROW]
[ROW][C]q4 excluded[/C][C]0.7384[/C][C]0.7442[/C][C]0.9469[/C][C]0.127[/C][/ROW]
[ROW][C]q5 excluded[/C][C]0.7535[/C][C]0.7594[/C][C]0.9443[/C][C]0.1363[/C][/ROW]
[ROW][C]q6 excluded[/C][C]0.7458[/C][C]0.7523[/C][C]0.9571[/C][C]0.1318[/C][/ROW]
[ROW][C]q7 excluded[/C][C]0.739[/C][C]0.7431[/C][C]0.9509[/C][C]0.1264[/C][/ROW]
[ROW][C]q8 excluded[/C][C]0.7318[/C][C]0.734[/C][C]0.95[/C][C]0.1212[/C][/ROW]
[ROW][C]q9 excluded[/C][C]0.7353[/C][C]0.741[/C][C]0.9492[/C][C]0.1251[/C][/ROW]
[ROW][C]q10 excluded[/C][C]0.725[/C][C]0.7348[/C][C]0.9482[/C][C]0.1217[/C][/ROW]
[ROW][C]q11 excluded[/C][C]0.7215[/C][C]0.7319[/C][C]0.9474[/C][C]0.1201[/C][/ROW]
[ROW][C]q12 excluded[/C][C]0.7302[/C][C]0.7394[/C][C]0.9497[/C][C]0.1242[/C][/ROW]
[ROW][C]q13 excluded[/C][C]0.7264[/C][C]0.7333[/C][C]0.9419[/C][C]0.1209[/C][/ROW]
[ROW][C]q14 excluded[/C][C]0.7245[/C][C]0.7347[/C][C]0.9466[/C][C]0.1216[/C][/ROW]
[ROW][C]q15 excluded[/C][C]0.7506[/C][C]0.7591[/C][C]0.9507[/C][C]0.1361[/C][/ROW]
[ROW][C]q16 excluded[/C][C]0.7444[/C][C]0.7546[/C][C]0.9463[/C][C]0.1332[/C][/ROW]
[ROW][C]q17 excluded[/C][C]0.7487[/C][C]0.7571[/C][C]0.9532[/C][C]0.1348[/C][/ROW]
[ROW][C]q18 excluded[/C][C]0.7654[/C][C]0.7735[/C][C]0.9538[/C][C]0.1458[/C][/ROW]
[ROW][C]q19 excluded[/C][C]0.7388[/C][C]0.7507[/C][C]0.9484[/C][C]0.1309[/C][/ROW]
[ROW][C]q20 excluded[/C][C]0.7544[/C][C]0.7656[/C][C]0.946[/C][C]0.1404[/C][/ROW]
[ROW][C]q21
 excluded[/C][C]0.7521[/C][C]0.7625[/C][C]0.9569[/C][C]0.1383[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=119931&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=119931&T=1

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7502	0.7576	0.957	0.1295
q1 excluded	0.7389	0.7428	0.9435	0.1262
q2 excluded	0.7389	0.7428	0.9479	0.1262
q3 excluded	0.7472	0.7527	0.9532	0.1321
q4 excluded	0.7384	0.7442	0.9469	0.127
q5 excluded	0.7535	0.7594	0.9443	0.1363
q6 excluded	0.7458	0.7523	0.9571	0.1318
q7 excluded	0.739	0.7431	0.9509	0.1264
q8 excluded	0.7318	0.734	0.95	0.1212
q9 excluded	0.7353	0.741	0.9492	0.1251
q10 excluded	0.725	0.7348	0.9482	0.1217
q11 excluded	0.7215	0.7319	0.9474	0.1201
q12 excluded	0.7302	0.7394	0.9497	0.1242
q13 excluded	0.7264	0.7333	0.9419	0.1209
q14 excluded	0.7245	0.7347	0.9466	0.1216
q15 excluded	0.7506	0.7591	0.9507	0.1361
q16 excluded	0.7444	0.7546	0.9463	0.1332
q17 excluded	0.7487	0.7571	0.9532	0.1348
q18 excluded	0.7654	0.7735	0.9538	0.1458
q19 excluded	0.7388	0.7507	0.9484	0.1309
q20 excluded	0.7544	0.7656	0.946	0.1404
q21 excluded	0.7521	0.7625	0.9569	0.1383

Parameters (Session):

Parameters (R input):

R code (references can be found in the software module):

library(psych)
z <- t(y)
(r <- alpha(z))
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Cronbach Alpha and Related Statistics',5,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Items',1,TRUE)
a<-table.element(a,'Cronbach Alpha',1,TRUE)
a<-table.element(a,'Std. Alpha',1,TRUE)
a<-table.element(a,'G6(smc)',1,TRUE)
a<-table.element(a,'Average R',1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'All itmes',header=TRUE)
a<-table.element(a,round(r$total['raw_alpha'],4))
a<-table.element(a,round(r$total['std.alpha'],4))
a<-table.element(a,round(r$total['G6(smc)'],4))
a<-table.element(a,round(r$total['average_r'],4))
a<-table.row.end(a)
n = length(z[1,])
for (i in 1:n) {
a<-table.row.start(a)
a<-table.element(a,paste(colnames(z)[i],' excluded',sep=''),header=TRUE)
a<-table.element(a,round(r$alpha.drop[i,'raw_alpha'],4))
a<-table.element(a,round(r$alpha.drop[i,'std.alpha'],4))
a<-table.element(a,round(r$alpha.drop[i,'G6(smc)'],4))
a<-table.element(a,round(r$alpha.drop[i,'average_r'],4))
a<-table.row.end(a)
}
a<-table.end(a)
table.save(a,file='mytable.tab')

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Input Parameters & R Code