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Author's title

Author

*Unverified author*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Sun, 01 Apr 2012 03:18:20 -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/2012/Apr/01/t1333264896vji9ebmrisqh0xp.htm/, Retrieved Tue, 30 Apr 2024 23:53:55 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=164242, Retrieved Tue, 30 Apr 2024 23:53:55 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

249

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

-       [Cronbach Alpha] [Cronbach Alpha (P)] [2012-04-01 07:18:20] [d41d8cd98f00b204e9800998ecf8427e] [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	0 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 & 0 seconds \tabularnewline
R Server & 'Herman Ole Andreas Wold' @ wold.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=164242&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]0 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=164242&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=164242&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	0 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	0.8312	0.8243	0.8207	0.5397
Q1/2 excluded	0.7099	0.7025	0.6604	0.4405
Q3/4 excluded	0.7874	0.7823	0.7487	0.5451
Q5/6 excluded	0.8778	0.8796	0.8412	0.709
Q7/8 excluded	0.7324	0.7223	0.7111	0.4644

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8312 & 0.8243 & 0.8207 & 0.5397 \tabularnewline
Q1/2 excluded & 0.7099 & 0.7025 & 0.6604 & 0.4405 \tabularnewline
Q3/4 excluded & 0.7874 & 0.7823 & 0.7487 & 0.5451 \tabularnewline
Q5/6 excluded & 0.8778 & 0.8796 & 0.8412 & 0.709 \tabularnewline
Q7/8 excluded & 0.7324 & 0.7223 & 0.7111 & 0.4644 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=164242&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]0.8312[/C][C]0.8243[/C][C]0.8207[/C][C]0.5397[/C][/ROW]
[ROW][C]Q1/2 excluded[/C][C]0.7099[/C][C]0.7025[/C][C]0.6604[/C][C]0.4405[/C][/ROW]
[ROW][C]Q3/4 excluded[/C][C]0.7874[/C][C]0.7823[/C][C]0.7487[/C][C]0.5451[/C][/ROW]
[ROW][C]Q5/6 excluded[/C][C]0.8778[/C][C]0.8796[/C][C]0.8412[/C][C]0.709[/C][/ROW]
[ROW][C]Q7/8 excluded[/C][C]0.7324[/C][C]0.7223[/C][C]0.7111[/C][C]0.4644[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=164242&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=164242&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	0.8312	0.8243	0.8207	0.5397
Q1/2 excluded	0.7099	0.7025	0.6604	0.4405
Q3/4 excluded	0.7874	0.7823	0.7487	0.5451
Q5/6 excluded	0.8778	0.8796	0.8412	0.709
Q7/8 excluded	0.7324	0.7223	0.7111	0.4644

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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Input Parameters & R Code