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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

Fri, 16 Dec 2016 01:39:55 +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/16/t1481848849euq8d3nuy99lq8k.htm/, Retrieved Sat, 08 Nov 2025 15:20:38 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=300053, Retrieved Sat, 08 Nov 2025 15:20:38 +0000

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No (this computation is public)

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Estimated Impact

265

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

-       [Cronbach Alpha] [cronbach van de 2...] [2016-12-16 00:39:55] [1e2c9196efc58119c3757b6c78ac7c5f] [Current]

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

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

\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
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=300053&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] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=300053&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=300053&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

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.588	0.599	0.6332	0.1574
ITH1 excluded	0.5292	0.5376	0.5493	0.1424
ITH2 excluded	0.5248	0.5255	0.556	0.1366
ITH3 excluded	0.511	0.5229	0.5446	0.1354
ITH4 excluded	0.5171	0.5319	0.5763	0.1396
KVDD1 excluded	0.5766	0.5932	0.6176	0.1724
KVDD2 excluded	0.5916	0.6041	0.6341	0.179
KVDD3 excluded	0.5858	0.5973	0.6299	0.1748
KVDD4 excluded	0.5937	0.6035	0.6309	0.1786

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.588 & 0.599 & 0.6332 & 0.1574 \tabularnewline
ITH1 excluded & 0.5292 & 0.5376 & 0.5493 & 0.1424 \tabularnewline
ITH2 excluded & 0.5248 & 0.5255 & 0.556 & 0.1366 \tabularnewline
ITH3 excluded & 0.511 & 0.5229 & 0.5446 & 0.1354 \tabularnewline
ITH4 excluded & 0.5171 & 0.5319 & 0.5763 & 0.1396 \tabularnewline
KVDD1 excluded & 0.5766 & 0.5932 & 0.6176 & 0.1724 \tabularnewline
KVDD2 excluded & 0.5916 & 0.6041 & 0.6341 & 0.179 \tabularnewline
KVDD3 excluded & 0.5858 & 0.5973 & 0.6299 & 0.1748 \tabularnewline
KVDD4 excluded & 0.5937 & 0.6035 & 0.6309 & 0.1786 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=300053&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]0.588[/C][C]0.599[/C][C]0.6332[/C][C]0.1574[/C][/ROW]
[ROW][C]ITH1 excluded[/C][C]0.5292[/C][C]0.5376[/C][C]0.5493[/C][C]0.1424[/C][/ROW]
[ROW][C]ITH2 excluded[/C][C]0.5248[/C][C]0.5255[/C][C]0.556[/C][C]0.1366[/C][/ROW]
[ROW][C]ITH3 excluded[/C][C]0.511[/C][C]0.5229[/C][C]0.5446[/C][C]0.1354[/C][/ROW]
[ROW][C]ITH4 excluded[/C][C]0.5171[/C][C]0.5319[/C][C]0.5763[/C][C]0.1396[/C][/ROW]
[ROW][C]KVDD1 excluded[/C][C]0.5766[/C][C]0.5932[/C][C]0.6176[/C][C]0.1724[/C][/ROW]
[ROW][C]KVDD2 excluded[/C][C]0.5916[/C][C]0.6041[/C][C]0.6341[/C][C]0.179[/C][/ROW]
[ROW][C]KVDD3 excluded[/C][C]0.5858[/C][C]0.5973[/C][C]0.6299[/C][C]0.1748[/C][/ROW]
[ROW][C]KVDD4 excluded[/C][C]0.5937[/C][C]0.6035[/C][C]0.6309[/C][C]0.1786[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=300053&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=300053&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	0.588	0.599	0.6332	0.1574
ITH1 excluded	0.5292	0.5376	0.5493	0.1424
ITH2 excluded	0.5248	0.5255	0.556	0.1366
ITH3 excluded	0.511	0.5229	0.5446	0.1354
ITH4 excluded	0.5171	0.5319	0.5763	0.1396
KVDD1 excluded	0.5766	0.5932	0.6176	0.1724
KVDD2 excluded	0.5916	0.6041	0.6341	0.179
KVDD3 excluded	0.5858	0.5973	0.6299	0.1748
KVDD4 excluded	0.5937	0.6035	0.6309	0.1786

Parameters (Session):

Parameters (R input):

par1 = TRUE ;

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

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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Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code