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Author

*The author of this computation has been verified*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Wed, 07 Dec 2016 20:14:52 +0100

Cite this page as follows

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2016/Dec/07/t1481138103a0gxnlvnjdgnxsm.htm/, Retrieved Sat, 06 Jun 2026 08:07:42 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=298313, Retrieved Sat, 06 Jun 2026 08:07:42 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

341

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

-       [Cronbach Alpha] [t] [2016-12-07 19:14:52] [9ac947b5174fcc9cd01e144b03ceb277] [Current]

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Dataseries X:

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Boxplots

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

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	0 seconds
R Server	Big Analytics Cloud Computing Center
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 Outputview raw output of R engine  \tabularnewline
Computing time0 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \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=298313&T=0

[TABLE]
[ROW]

Summary of computational transaction[/C][/ROW] [ROW]

Raw Input[/C]

view raw input (R code) [/C][/ROW] [ROW]

Raw Output[/C]

view raw output of R engine [/C][/ROW] [ROW]

Computing time[/C]

0 seconds[/C][/ROW] [ROW]

R Server[/C]

Big Analytics Cloud Computing Center[/C][/ROW] [ROW]

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=298313&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=298313&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	0 seconds
R Server	Big Analytics Cloud Computing Center
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	0.4169	0.4763	0.4954	0.1539
ITH4 excluded	0.5272	0.549	0.5394	0.2333
TVDC1 excluded	0.347	0.4062	0.3651	0.146
TVDC2 excluded	0.3279	0.3661	0.3918	0.1262
TVDC3 excluded	0.1817	0.2769	0.2755	0.0874
TVDC4 excluded	0.4038	0.4616	0.4586	0.1765

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.4169 & 0.4763 & 0.4954 & 0.1539 \tabularnewline
ITH4 excluded & 0.5272 & 0.549 & 0.5394 & 0.2333 \tabularnewline
TVDC1 excluded & 0.347 & 0.4062 & 0.3651 & 0.146 \tabularnewline
TVDC2 excluded & 0.3279 & 0.3661 & 0.3918 & 0.1262 \tabularnewline
TVDC3 excluded & 0.1817 & 0.2769 & 0.2755 & 0.0874 \tabularnewline
TVDC4



 excluded & 0.4038 & 0.4616 & 0.4586 & 0.1765 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=298313&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]0.4169[/C][C]0.4763[/C][C]0.4954[/C][C]0.1539[/C][/ROW]
[ROW][C]ITH4 excluded[/C][C]0.5272[/C][C]0.549[/C][C]0.5394[/C][C]0.2333[/C][/ROW]
[ROW][C]TVDC1 excluded[/C][C]0.347[/C][C]0.4062[/C][C]0.3651[/C][C]0.146[/C][/ROW]
[ROW][C]TVDC2 excluded[/C][C]0.3279[/C][C]0.3661[/C][C]0.3918[/C][C]0.1262[/C][/ROW]
[ROW][C]TVDC3 excluded[/C][C]0.1817[/C][C]0.2769[/C][C]0.2755[/C][C]0.0874[/C][/ROW]
[ROW][C]TVDC4



 excluded[/C][C]0.4038[/C][C]0.4616[/C][C]0.4586[/C][C]0.1765[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=298313&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=298313&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	0.4169	0.4763	0.4954	0.1539
ITH4 excluded	0.5272	0.549	0.5394	0.2333
TVDC1 excluded	0.347	0.4062	0.3651	0.146
TVDC2 excluded	0.3279	0.3661	0.3918	0.1262
TVDC3 excluded	0.1817	0.2769	0.2755	0.0874
TVDC4 excluded	0.4038	0.4616	0.4586	0.1765

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

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

par1 <- 'TRUE'
library(psych)
par1b <- T
if(par1=='FALSE') par1b <- F
z <- t(y)
(r <- alpha(z,check.keys=par1b))
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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