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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

Mon, 21 Oct 2013 12:59:48 -0400

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/2013/Oct/21/t13823747999y7ufboiklf7tjd.htm/, Retrieved Wed, 11 Feb 2026 04:09:17 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=217625, Retrieved Wed, 11 Feb 2026 04:09:17 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

329

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

-       [Cronbach Alpha] [] [2013-10-21 16:59:48] [df6648d3354c48eb8905db6c004499bd] [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	1 seconds
R Server	'Gertrude Mary Cox' @ cox.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 & 1 seconds \tabularnewline
R Server & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=217625&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]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=217625&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=217625&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	'Gertrude Mary Cox' @ cox.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7996	0.8135	0.7814	0.5217
Q5 excluded	0.7109	0.7355	0.67	0.481
Q12 excluded	0.8178	0.8183	0.7597	0.6002
Q19 excluded	0.7049	0.7209	0.642	0.4626
Q26 excluded	0.7659	0.7809	0.719	0.5429

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7996 & 0.8135 & 0.7814 & 0.5217 \tabularnewline
Q5 excluded & 0.7109 & 0.7355 & 0.67 & 0.481 \tabularnewline
Q12 excluded & 0.8178 & 0.8183 & 0.7597 & 0.6002 \tabularnewline
Q19 excluded & 0.7049 & 0.7209 & 0.642 & 0.4626 \tabularnewline
Q26 excluded & 0.7659 & 0.7809 & 0.719 & 0.5429 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=217625&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]0.7996[/C][C]0.8135[/C][C]0.7814[/C][C]0.5217[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]0.7109[/C][C]0.7355[/C][C]0.67[/C][C]0.481[/C][/ROW]
[ROW][C]Q12 excluded[/C][C]0.8178[/C][C]0.8183[/C][C]0.7597[/C][C]0.6002[/C][/ROW]
[ROW][C]Q19 excluded[/C][C]0.7049[/C][C]0.7209[/C][C]0.642[/C][C]0.4626[/C][/ROW]
[ROW][C]Q26 excluded[/C][C]0.7659[/C][C]0.7809[/C][C]0.719[/C][C]0.5429[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=217625&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=217625&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	0.7996	0.8135	0.7814	0.5217
Q5 excluded	0.7109	0.7355	0.67	0.481
Q12 excluded	0.8178	0.8183	0.7597	0.6002
Q19 excluded	0.7049	0.7209	0.642	0.4626
Q26 excluded	0.7659	0.7809	0.719	0.5429

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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