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Author's title

Author

*The author of this computation has been verified*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Tue, 18 Aug 2015 23:03:42 +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/2015/Aug/18/t1439935431zls91yafq33zgi6.htm/, Retrieved Thu, 16 May 2024 18:59:26 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=280259, Retrieved Thu, 16 May 2024 18:59:26 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

133

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

-       [Cronbach Alpha] [] [2015-08-18 22:03:42] [3e99441ea7f7f69c8fa4628f6be951c3] [Current]

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Dataseries X:

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Histogram

Boxplots

5	2	2	3
4	6	5	5
5	5	5	5
4	2	3	5
7	6	6	6
4	2	4	5
5	5	5	5
6	5	5	5
5	2	3	5
7	7	7	7
4	1	2	4
6	5	5	6
7	4	6	5
7	6	7	7
7	6	5	6
5	6	6	6
6	6	6	6
6	5	5	5
6	4	4	6
5	4	5	5
7	7	4	7
6	2	3	5
7	4	7	6
6	5	5	5
6	4	6	6
6	6	6	7
5	6	6	6
6	4	5	5
6	3	5	7
6	6	4	6
7	6	6	6
7	4	5	7
6	3	5	5
7	6	7	7
6	4	5	6
6	1	6	6
7	5	6	7
6	2	5	3
7	5	5	7
6	6	6	6
6	3	4	5
7	7	7	7
5	1	4	5
5	2	5	5
5	4	5	4
7	6	6	7
4	4	4	6
7	3	6	6
6	3	4	6
7	2	2	6
6	7	7	6
7	5	2	7
7	6	7	6
5	5	5	6
1	2	4	5
6	2	6	6
5	5	5	5
6	6	6	6
6	6	6	6
5	5	6	6
7	1	6	7
6	3	5	6
7	6	6	4
5	7	3	4
7	5	5	7
7	2	5	7
5	3	2	6
5	4	4	4
7	5	5	6
6	3	5	6
6	2	5	6
6	3	4	5
5	4	3	6
6	5	4	6
5	6	5	4
5	3	4	5
5	6	5	4
7	5	6	7
6	1	3	5
4	3	4	6
5	3	4	5
7	5	5	7
6	4	4	7
5	6	6	5
6	4	3	5
7	5	4	6
6	5	5	4
5	5	5	6
5	5	5	6
6	5	4	5
5	3	5	5
7	6	6	6
6	6	5	6
7	5	4	5
5	5	5	5
6	5	5	5
6	4	4	6
6	5	5	6
6	3	2	4
6	6	6	6
6	6	4	6
5	5	6	5
5	4	4	4
7	4	5	7
6	5	5	6
6	6	5	6
4	1	5	6
5	1	5	7
7	5	6	7
5	2	5	6
3	3	1	7
5	6	5	4
4	5	5	5
6	1	5	6
6	5	5	6
6	6	3	6
4	2	3	5
1	2	1	1
6	5	7	7
6	5	5	5
3	2	3	3
3	5	6	6
4	1	1	3
6	2	3	4
7	5	6	5
7	4	5	5
4	3	1	1
6	6	6	6
4	4	4	4
7	4	4	5
3	2	5	5
6	1	5	6
7	4	5	6
6	6	3	6
6	5	6	4
6	5	5	5
7	2	5	6
6	5	6	7
3	4	4	4
6	6	6	6
5	3	5	5
6	6	6	6
6	6	6	6
5	2	3	5
5	3	5	6
4	5	5	6
7	6	6	7
7	6	6	7
5	5	3	5
6	6	5	6
5	2	2	4
7	1	1	7
5	4	5	5
5	6	6	5
6	5	5	5
3	2	3	3
7	4	6	6
6	3	4	5
7	4	2	6
4	4	3	4
2	2	2	2
6	2	2	5
5	4	5	7
6	6	6	7
4	2	4	4
6	3	6	6
5	3	5	5
5	4	4	5
5	1	2	4
6	6	6	6
7	2	2	6
6	6	2	6
5	6	7	6
7	6	4	5
3	4	5	3
6	4	6	6
7	5	7	7
5	3	4	5
6	5	6	6
6	3	4	6
6	4	5	6
5	6	6	6
5	4	5	5
6	5	3	4
6	3	4	3
7	5	4	7
5	2	1	5
6	2	4	6
6	7	5	5
6	5	5	5
6	5	6	6
7	3	1	5
7	4	2	4
7	3	4	6
7	3	1	7
5	5	5	5
5	5	5	4
7	6	6	7
2	3	3	1
6	6	5	6
4	1	1	3
4	1	3	5
7	6	7	7
6	4	5	7
3	3	3	3
6	5	2	5
1	3	1	1
5	4	4	4
6	6	4	6
6	5	5	6
6	6	6	5
7	2	4	6
7	2	5	6
5	5	2	5
3	5	4	6
7	6	4	7
7	5	1	7
6	3	4	5
6	5	5	7
7	6	7	7
7	7	4	7
6	7	5	6
3	2	3	4
3	5	4	4
6	2	3	5
7	6	5	6
5	5	6	7
7	5	5	7
7	6	4	7
6	6	7	7
5	6	4	4
7	7	7	7
6	5	6	6
6	6	5	4
5	4	5	5
6	5	6	6
6	6	5	6
6	3	5	6
6	3	5	4
6	4	4	6
7	7	7	7
5	6	5	5
6	7	6	6
5	5	4	4
7	6	5	6
7	7	7	7
2	2	1	4
6	6	4	6
5	7	7	7
7	7	7	7
4	5	3	6
7	4	5	7
6	4	6	6
3	1	5	6
6	4	7	7
3	3	3	3
4	4	2	2
6	3	5	6
7	5	6	7
7	6	5	6
6	6	5	6
5	3	5	5
5	4	6	5
5	6	5	6
6	4	5	5
6	6	6	7
7	7	7	7
6	5	7	7
5	3	3	3
5	3	3	5
6	6	6	6
3	2	4	4
5	5	4	5
4	4	4	6
5	3	2	6
3	3	1	1
7	7	6	7
7	4	6	6
6	4	4	6
5	5	5	5
7	7	5	7
6	6	5	6
7	4	6	7
6	5	5	5
4	4	3	4
6	6	5	5
6	5	7	7
6	5	6	6
4	4	4	4
7	5	7	7
6	6	6	7
7	5	6	5
7	4	6	7
7	6	6	7
5	4	5	6
6	6	6	6
1	6	6	1
7	7	7	7
7	5	6	7
6	4	5	6
6	5	3	5
7	3	5	7
6	5	5	6
6	3	6	6
4	4	4	5
6	4	5	6
6	5	6	6
5	4	4	3
6	2	2	5
7	6	5	6
6	6	6	7
6	6	5	6
5	4	5	5
6	6	6	6
4	2	4	4
6	3	5	6
6	5	5	7
7	1	2	2
7	2	6	7
5	3	5	5
6	4	5	6
6	5	6	6
6	5	6	5
7	7	7	7
6	4	4	6
6	5	5	6
7	4	6	7
4	5	5	5
4	1	2	2
6	5	5	7
6	6	5	6
6	6	4	6
5	5	5	5
6	5	5	7
6	6	6	6
5	2	5	5
5	4	5	5
6	1	4	6
6	4	6	7
5	5	4	5
7	6	5	6
5	2	5	3
6	7	4	5
7	5	6	7
7	6	7	7
7	5	5	6
5	3	4	4
6	5	6	7
7	2	6	7
7	7	6	7
7	7	7	7
6	5	5	7
7	6	6	6
6	5	5	5
6	5	5	6
7	5	6	7
6	6	6	7
4	5	5	5
6	5	6	7
6	4	5	6
5	6	4	3
5	3	4	5
6	4	3	4
7	6	6	7
4	1	1	2
6	5	7	7
7	4	5	6
6	4	4	6
7	5	4	6
5	2	4	6
7	5	5	7
4	5	5	6
4	6	4	5
6	7	6	7
7	2	2	2
5	5	5	5
7	7	6	6
5	4	6	6
6	6	6	6
6	5	6	6
4	5	2	5
7	5	6	6
5	4	4	5
7	4	4	6
6	4	4	3
5	5	4	5
5	6	5	6
7	4	6	6
6	7	7	7
6	5	5	6
7	3	6	6
7	6	5	7
7	6	6	7
6	5	4	7
7	5	6	7
7	4	5	7
1	4	1	2
6	6	6	6
5	2	2	5
5	3	4	5
6	4	4	7
6	3	6	6
6	6	7	6
6	2	5	5
5	5	4	6
7	5	6	7
5	4	6	5
7	6	6	5
6	4	5	7
5	3	5	3
5	5	5	5
5	6	5	5
6	5	5	6
3	2	5	5
6	4	5	6
7	5	6	7
4	4	4	4
7	7	7	7
6	4	6	6
5	5	4	5
6	3	4	4
6	5	6	6
7	7	7	7
5	5	4	5
6	6	6	6
5	3	3	5
5	5	3	6
5	7	3	4
1	4	2	5
6	1	4	5
5	4	2	4
5	5	2	5
7	6	4	6
4	7	5	5
5	4	5	6
6	5	3	5
5	5	4	6
5	5	5	5
6	5	6	6
6	4	6	6
7	3	5	5
6	6	6	6
5	5	5	6
6	5	5	7
6	5	4	7
6	5	4	6
7	5	7	7
4	4	4	4
7	7	7	7
7	5	6	6
7	7	7	7
6	1	2	5
5	2	4	5
7	4	4	7
5	5	3	5
7	6	4	6
6	5	1	6
6	4	6	6
2	5	2	4
5	5	5	5
7	5	5	7
7	3	7	7
6	7	6	6
7	5	5	6
7	5	5	7
6	5	5	6
5	6	6	7
6	5	6	7
6	4	7	7
6	6	7	6
7	6	7	7
6	7	7	7
3	4	4	3
6	4	6	5
6	3	3	5
6	5	6	6
7	6	5	7
5	5	5	5
5	6	5	5
5	6	6	7
6	7	7	7
3	3	3	3
6	6	7	7
7	5	4	6
6	6	5	7
6	6	6	6
5	5	5	5
4	4	7	7
7	5	5	6
5	5	6	6
6	5	5	5
3	3	2	5
7	1	6	7
5	6	6	3
6	2	5	5
6	3	5	5
6	6	7	6
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
6	6	6	6
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'George Udny Yule' @ yule.wessa.net

\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 & 2 seconds \tabularnewline
R Server & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=280259&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]2 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=280259&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=280259&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	2 seconds
R Server	'George Udny Yule' @ yule.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7703	0.7788	0.7492	0.4681
Q7 excluded	0.7291	0.7344	0.6597	0.4797
Q14 excluded	0.7713	0.7779	0.7145	0.5386
Q21 excluded	0.6817	0.7019	0.6428	0.4398
Q28 excluded	0.6781	0.6797	0.598	0.4143

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7703 & 0.7788 & 0.7492 & 0.4681 \tabularnewline
Q7 excluded & 0.7291 & 0.7344 & 0.6597 & 0.4797 \tabularnewline
Q14 excluded & 0.7713 & 0.7779 & 0.7145 & 0.5386 \tabularnewline
Q21 excluded & 0.6817 & 0.7019 & 0.6428 & 0.4398 \tabularnewline
Q28 excluded & 0.6781 & 0.6797 & 0.598 & 0.4143 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=280259&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]0.7703[/C][C]0.7788[/C][C]0.7492[/C][C]0.4681[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.7291[/C][C]0.7344[/C][C]0.6597[/C][C]0.4797[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.7713[/C][C]0.7779[/C][C]0.7145[/C][C]0.5386[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.6817[/C][C]0.7019[/C][C]0.6428[/C][C]0.4398[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.6781[/C][C]0.6797[/C][C]0.598[/C][C]0.4143[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=280259&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=280259&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	0.7703	0.7788	0.7492	0.4681
Q7 excluded	0.7291	0.7344	0.6597	0.4797
Q14 excluded	0.7713	0.7779	0.7145	0.5386
Q21 excluded	0.6817	0.7019	0.6428	0.4398
Q28 excluded	0.6781	0.6797	0.598	0.4143

Parameters (Session):

par1 = TRUE ;

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')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code