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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, 17 Dec 2014 20:18:27 +0000

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/2014/Dec/17/t14188475579y1thbhcaa2fjuc.htm/, Retrieved Thu, 16 May 2024 07:19:16 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270648, Retrieved Thu, 16 May 2024 07:19:16 +0000

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IsPrivate?

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]
- RMPD    [Cronbach Alpha] [] [2014-12-17 20:18:27] [8bc211f73340264728ef5f82b44185ba] [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	'Sir Ronald Aylmer Fisher' @ fisher.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 & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270648&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]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270648&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270648&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	'Sir Ronald Aylmer Fisher' @ fisher.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.8333	0.8311	0.8187	0.5517
Q4 excluded	0.8577	0.8577	0.8252	0.6677
Q11 excluded	0.7563	0.7545	0.6874	0.506
Q18 excluded	0.7355	0.7346	0.6544	0.4799
Q25 excluded	0.7916	0.7878	0.7672	0.5531

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8333 & 0.8311 & 0.8187 & 0.5517 \tabularnewline
Q4 excluded & 0.8577 & 0.8577 & 0.8252 & 0.6677 \tabularnewline
Q11 excluded & 0.7563 & 0.7545 & 0.6874 & 0.506 \tabularnewline
Q18 excluded & 0.7355 & 0.7346 & 0.6544 & 0.4799 \tabularnewline
Q25 excluded & 0.7916 & 0.7878 & 0.7672 & 0.5531 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270648&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]0.8333[/C][C]0.8311[/C][C]0.8187[/C][C]0.5517[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.8577[/C][C]0.8577[/C][C]0.8252[/C][C]0.6677[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.7563[/C][C]0.7545[/C][C]0.6874[/C][C]0.506[/C][/ROW]
[ROW][C]Q18 excluded[/C][C]0.7355[/C][C]0.7346[/C][C]0.6544[/C][C]0.4799[/C][/ROW]
[ROW][C]Q25 excluded[/C][C]0.7916[/C][C]0.7878[/C][C]0.7672[/C][C]0.5531[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270648&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270648&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	0.8333	0.8311	0.8187	0.5517
Q4 excluded	0.8577	0.8577	0.8252	0.6677
Q11 excluded	0.7563	0.7545	0.6874	0.506
Q18 excluded	0.7355	0.7346	0.6544	0.4799
Q25 excluded	0.7916	0.7878	0.7672	0.5531

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

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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