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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

Wed, 14 Dec 2016 14:48:27 +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/14/t1481723566sfhjec0q12i97ux.htm/, Retrieved Sat, 25 Oct 2025 19:57:43 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=299447, Retrieved Sat, 25 Oct 2025 19:57:43 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

246

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

-       [Cronbach Alpha] [] [2016-12-14 13:48:27] [6e17bb30248b72d8119c893128a7a697] [Current]

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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=299447&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=299447&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=299447&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	0.5812	0.6272	0.6272	0.2961
EP1 excluded	0.3763	0.3888	0.3105	0.175
EP2 excluded	0.4347	0.4654	0.3828	0.2249
EP3 excluded	0.6444	0.7055	0.6669	0.444
EP4 excluded	0.5751	0.6076	0.6101	0.3404

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.5812 & 0.6272 & 0.6272 & 0.2961 \tabularnewline
EP1 excluded & 0.3763 & 0.3888 & 0.3105 & 0.175 \tabularnewline
EP2 excluded & 0.4347 & 0.4654 & 0.3828 & 0.2249 \tabularnewline
EP3 excluded & 0.6444 & 0.7055 & 0.6669 & 0.444 \tabularnewline
EP4 excluded & 0.5751 & 0.6076 & 0.6101 & 0.3404 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=299447&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]0.5812[/C][C]0.6272[/C][C]0.6272[/C][C]0.2961[/C][/ROW]
[ROW][C]EP1 excluded[/C][C]0.3763[/C][C]0.3888[/C][C]0.3105[/C][C]0.175[/C][/ROW]
[ROW][C]EP2 excluded[/C][C]0.4347[/C][C]0.4654[/C][C]0.3828[/C][C]0.2249[/C][/ROW]
[ROW][C]EP3 excluded[/C][C]0.6444[/C][C]0.7055[/C][C]0.6669[/C][C]0.444[/C][/ROW]
[ROW][C]EP4 excluded[/C][C]0.5751[/C][C]0.6076[/C][C]0.6101[/C][C]0.3404[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=299447&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=299447&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	0.5812	0.6272	0.6272	0.2961
EP1 excluded	0.3763	0.3888	0.3105	0.175
EP2 excluded	0.4347	0.4654	0.3828	0.2249
EP3 excluded	0.6444	0.7055	0.6669	0.444
EP4 excluded	0.5751	0.6076	0.6101	0.3404

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')

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Input Parameters & R Code