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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, 17 Oct 2011 10:31:54 -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/17/t1318861930i19tto33jgq00vq.htm/, Retrieved Wed, 15 May 2024 23:00:27 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=130555, Retrieved Wed, 15 May 2024 23:00:27 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

116

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] [Alpha cronback ] [2011-10-17 14:31:54] [858ef1d716a843f745df26a736207017] [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	'AstonUniversity' @ aston.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 & 'AstonUniversity' @ aston.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=130555&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]'AstonUniversity' @ aston.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=130555&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=130555&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	'AstonUniversity' @ aston.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.78	0.78	0.7462	0.4698
Q3 excluded	0.8162	0.8209	0.7537	0.6043
Q10 excluded	0.6778	0.6787	0.616	0.4132
Q17 excluded	0.6881	0.6876	0.62	0.4232
Q24 excluded	0.7015	0.7009	0.6375	0.4386

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.78 & 0.78 & 0.7462 & 0.4698 \tabularnewline
Q3 excluded & 0.8162 & 0.8209 & 0.7537 & 0.6043 \tabularnewline
Q10 excluded & 0.6778 & 0.6787 & 0.616 & 0.4132 \tabularnewline
Q17 excluded & 0.6881 & 0.6876 & 0.62 & 0.4232 \tabularnewline
Q24 excluded & 0.7015 & 0.7009 & 0.6375 & 0.4386 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=130555&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]0.78[/C][C]0.78[/C][C]0.7462[/C][C]0.4698[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.8162[/C][C]0.8209[/C][C]0.7537[/C][C]0.6043[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.6778[/C][C]0.6787[/C][C]0.616[/C][C]0.4132[/C][/ROW]
[ROW][C]Q17 excluded[/C][C]0.6881[/C][C]0.6876[/C][C]0.62[/C][C]0.4232[/C][/ROW]
[ROW][C]Q24 excluded[/C][C]0.7015[/C][C]0.7009[/C][C]0.6375[/C][C]0.4386[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=130555&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=130555&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	0.78	0.78	0.7462	0.4698
Q3 excluded	0.8162	0.8209	0.7537	0.6043
Q10 excluded	0.6778	0.6787	0.616	0.4132
Q17 excluded	0.6881	0.6876	0.62	0.4232
Q24 excluded	0.7015	0.7009	0.6375	0.4386

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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