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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

Thu, 03 Sep 2015 08:38:25 +0100

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/2015/Sep/03/t1441265955dfc2s90s81t0rty.htm/, Retrieved Thu, 16 May 2024 13:07:59 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=280529, Retrieved Thu, 16 May 2024 13:07:59 +0000

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Original text written by user:

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] [haargroei vs dosis] [2015-09-03 07:38:25] [a8f4aacb10d679ebd3f422aa920ff39a] [Current]

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Dataseries X:

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0.5 "'VC'" 4.2
0.5 "'VC'" 11.5
0.5 "'VC'" 7.3
0.5 "'VC'" 5.8
0.5 "'VC'" 6.4
0.5 "'VC'" 10
0.5 "'VC'" 11.2
0.5 "'VC'" 11.2
0.5 "'VC'" 5.2
0.5 "'VC'" 7
1 "'VC'" 16.5
1 "'VC'" 16.5
1 "'VC'" 15.2
1 "'VC'" 17.3
1 "'VC'" 22.5
1 "'VC'" 17.3
1 "'VC'" 13.6
1 "'VC'" 14.5
1 "'VC'" 18.8
1 "'VC'" 15.5
2 "'VC'" 23.6
2 "'VC'" 18.5
2 "'VC'" 33.9
2 "'VC'" 25.5
2 "'VC'" 26.4
2 "'VC'" 32.5
2 "'VC'" 26.7
2 "'VC'" 21.5
2 "'VC'" 23.3
2 "'VC'" 29.5
0.5 "'OJ'" 15.2
0.5 "'OJ'" 21.5
0.5 "'OJ'" 17.6
0.5 "'OJ'" 9.7
0.5 "'OJ'" 14.5
0.5 "'OJ'" 10
0.5 "'OJ'" 8.2
0.5 "'OJ'" 9.4
0.5 "'OJ'" 16.5
0.5 "'OJ'" 9.7
1 "'OJ'" 19.7
1 "'OJ'" 23.3
1 "'OJ'" 23.6
1 "'OJ'" 26.4
1 "'OJ'" 20
1 "'OJ'" 25.2
1 "'OJ'" 25.8
1 "'OJ'" 21.2
1 "'OJ'" 14.5
1 "'OJ'" 27.3
2 "'OJ'" 25.5
2 "'OJ'" 26.4
2 "'OJ'" 22.4
2 "'OJ'" 24.5
2 "'OJ'" 24.8
2 "'OJ'" 30.9
2 "'OJ'" 26.4
2 "'OJ'" 27.3
2 "'OJ'" 29.4
2 "'OJ'" 23

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	'Gwilym Jenkins' @ jenkins.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 & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=280529&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]'Gwilym Jenkins' @ jenkins.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=280529&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=280529&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	'Gwilym Jenkins' @ jenkins.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.2318	0.8905	0.8027	0.8027
Dosis excluded	0.8027	0.8027	0.6443	0.8027
Middel excluded	0.8027	0.8027	0.6443	0.8027
Haargroei excluded	NA	NA	NA	NA

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.2318 & 0.8905 & 0.8027 & 0.8027 \tabularnewline
Dosis excluded & 0.8027 & 0.8027 & 0.6443 & 0.8027 \tabularnewline
Middel excluded & 0.8027 & 0.8027 & 0.6443 & 0.8027 \tabularnewline
Haargroei excluded & NA & NA & NA & NA \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=280529&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]0.2318[/C][C]0.8905[/C][C]0.8027[/C][C]0.8027[/C][/ROW]
[ROW][C]Dosis excluded[/C][C]0.8027[/C][C]0.8027[/C][C]0.6443[/C][C]0.8027[/C][/ROW]
[ROW][C]Middel excluded[/C][C]0.8027[/C][C]0.8027[/C][C]0.6443[/C][C]0.8027[/C][/ROW]
[ROW][C]Haargroei excluded[/C][C]NA[/C][C]NA[/C][C]NA[/C][C]NA[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=280529&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=280529&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	0.2318	0.8905	0.8027	0.8027
Dosis excluded	0.8027	0.8027	0.6443	0.8027
Middel excluded	0.8027	0.8027	0.6443	0.8027
Haargroei excluded	NA	NA	NA	NA

Parameters (Session):

Parameters (R input):

par1 = TRUE ;

R code (references can be found in the software module):

library(psych)
par1b <- T
if(par1=='FALSE') par1b <- F
z <- t(y)
(r <- alpha(z,check.keys=par1b))
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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Figures (Output of Computation)

Input Parameters & R Code