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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 10:33:22 -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/t1318862017ptkoogead509680.htm/, Retrieved Wed, 15 May 2024 04:28:33 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=130556, Retrieved Wed, 15 May 2024 04:28:33 +0000

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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] [2011-10-17 14:33:22] [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	'George Udny Yule' @ yule.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 & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=130556&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]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=130556&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=130556&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	'George Udny Yule' @ yule.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7802	0.7841	0.7864	0.4759
Q7 excluded	0.7663	0.77	0.7228	0.5275
Q14 excluded	0.7767	0.7781	0.7432	0.539
Q21 excluded	0.6784	0.6919	0.6374	0.4281
Q28 excluded	0.6785	0.6751	0.6095	0.4092

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7802 & 0.7841 & 0.7864 & 0.4759 \tabularnewline
Q7 excluded & 0.7663 & 0.77 & 0.7228 & 0.5275 \tabularnewline
Q14 excluded & 0.7767 & 0.7781 & 0.7432 & 0.539 \tabularnewline
Q21 excluded & 0.6784 & 0.6919 & 0.6374 & 0.4281 \tabularnewline
Q28 excluded & 0.6785 & 0.6751 & 0.6095 & 0.4092 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=130556&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]0.7802[/C][C]0.7841[/C][C]0.7864[/C][C]0.4759[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.7663[/C][C]0.77[/C][C]0.7228[/C][C]0.5275[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.7767[/C][C]0.7781[/C][C]0.7432[/C][C]0.539[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.6784[/C][C]0.6919[/C][C]0.6374[/C][C]0.4281[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.6785[/C][C]0.6751[/C][C]0.6095[/C][C]0.4092[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=130556&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=130556&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	0.7802	0.7841	0.7864	0.4759
Q7 excluded	0.7663	0.77	0.7228	0.5275
Q14 excluded	0.7767	0.7781	0.7432	0.539
Q21 excluded	0.6784	0.6919	0.6374	0.4281
Q28 excluded	0.6785	0.6751	0.6095	0.4092

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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