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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

Fri, 14 Oct 2011 09:00:57 -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/2011/Oct/14/t1318597290pqqi9jmcpms97h9.htm/, Retrieved Thu, 16 May 2024 08:39:32 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=129449, Retrieved Thu, 16 May 2024 08:39:32 +0000

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No (this computation is public)

User-defined keywords

Estimated Impact

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

-     [Cronbach Alpha] [Intrinsic Motivat...] [2010-10-12 11:40:37] [b98453cac15ba1066b407e146608df68]
- R  D    [Cronbach Alpha] [Cronbach Alpha Ex...] [2011-10-14 13:00:57] [8432dc408001a08517818ba7ac24bdb0] [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	'Herman Ole Andreas Wold' @ wold.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 & 'Herman Ole Andreas Wold' @ wold.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=129449&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]'Herman Ole Andreas Wold' @ wold.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=129449&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=129449&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	'Herman Ole Andreas Wold' @ wold.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7439	0.7555	0.7443	0.4358
Q7 excluded	0.6831	0.6937	0.6512	0.4302
Q14 excluded	0.8023	0.8044	0.7593	0.5782
Q21 excluded	0.6293	0.6522	0.6083	0.3846
Q28 excluded	0.6115	0.6181	0.5297	0.3504

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7439 & 0.7555 & 0.7443 & 0.4358 \tabularnewline
Q7 excluded & 0.6831 & 0.6937 & 0.6512 & 0.4302 \tabularnewline
Q14 excluded & 0.8023 & 0.8044 & 0.7593 & 0.5782 \tabularnewline
Q21 excluded & 0.6293 & 0.6522 & 0.6083 & 0.3846 \tabularnewline
Q28 excluded & 0.6115 & 0.6181 & 0.5297 & 0.3504 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=129449&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]0.7439[/C][C]0.7555[/C][C]0.7443[/C][C]0.4358[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.6831[/C][C]0.6937[/C][C]0.6512[/C][C]0.4302[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.8023[/C][C]0.8044[/C][C]0.7593[/C][C]0.5782[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.6293[/C][C]0.6522[/C][C]0.6083[/C][C]0.3846[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.6115[/C][C]0.6181[/C][C]0.5297[/C][C]0.3504[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=129449&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=129449&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	0.7439	0.7555	0.7443	0.4358
Q7 excluded	0.6831	0.6937	0.6512	0.4302
Q14 excluded	0.8023	0.8044	0.7593	0.5782
Q21 excluded	0.6293	0.6522	0.6083	0.3846
Q28 excluded	0.6115	0.6181	0.5297	0.3504

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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