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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 14:40:38 +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/t1418827264wb5i5zaoppg3za2.htm/, Retrieved Thu, 31 Oct 2024 22:46:21 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270344, Retrieved Thu, 31 Oct 2024 22:46:21 +0000

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IsPrivate?

No (this computation is public)

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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] [5) Extrinsieke mo...] [2014-12-17 14:40:38] [3c8f34fed408bc4f957cadcbcbd22146] [Current]

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Boxplots

4 2 3 5
1 2 1 1
6 5 7 7
6 5 5 5
3 2 3 3
3 5 6 6
4 1 1 3
6 2 3 4
7 5 6 5
7 4 5 5
4 3 1 1
6 6 6 6
4 4 4 4
7 4 4 5
3 2 5 5
6 1 5 6
7 4 5 6
6 6 3 6
6 5 6 4
6 5 5 5
7 2 5 6
6 5 6 7
3 4 4 4
6 6 6 6
5 3 5 5
6 6 6 6
6 6 6 6
5 2 3 5
5 3 5 6
4 5 5 6
7 6 6 7
7 6 6 7
5 5 3 5
6 6 5 6
5 2 2 4
7 1 1 7
5 4 5 5
5 6 6 5
6 5 5 5
3 2 3 3
7 4 6 6
6 3 4 5
7 4 2 6
4 4 3 4
2 2 2 2
6 2 2 5
5 4 5 7
6 6 6 7
4 2 4 4
6 3 6 6
5 3 5 5
5 4 4 5
5 1 2 4
6 6 6 6
7 2 2 6
6 6 2 6
5 6 7 6
7 6 4 5
3 4 5 3
6 4 6 6
7 5 7 7
5 3 4 5
6 5 6 6
6 3 4 6
6 4 5 6
5 6 6 6
5 4 5 5
6 5 3 4
6 3 4 3
7 5 4 7
5 2 1 5
6 2 4 6
6 7 5 5
6 5 5 5
6 5 6 6
7 3 1 5
7 4 2 4
7 3 4 6
7 3 1 7
5 5 5 5
5 5 5 4
7 6 6 7
2 3 3 1
6 6 5 6
4 1 1 3
4 1 3 5
7 6 7 7
6 4 5 7
3 3 3 3
6 5 2 5
1 3 1 1
5 4 4 4
6 6 4 6
6 5 5 6
6 6 6 5
7 2 4 6
7 2 5 6
5 5 2 5
3 5 4 6
7 6 4 7
7 5 1 7
6 3 4 5
6 5 5 7
7 6 7 7
7 7 4 7
6 7 5 6
3 2 3 4
3 5 4 4
6 2 3 5
7 6 5 6
5 5 6 7
7 5 5 7
7 6 4 7
6 6 7 7
5 6 4 4
7 7 7 7
6 5 6 6
6 6 5 4
5 4 5 5
6 5 6 6
6 6 5 6
6 3 5 6
6 3 5 4
6 4 4 6
7 7 7 7
5 6 5 5
6 7 6 6
5 5 4 4
7 6 5 6
7 7 7 7
2 2 1 4
6 6 4 6
5 7 7 7
7 7 7 7
4 5 3 6
7 4 5 7
6 4 6 6
3 1 5 6
6 4 7 7
3 3 3 3
4 4 2 2
6 3 5 6
7 5 6 7
7 6 5 6
6 6 5 6
5 3 5 5
5 4 6 5
5 6 5 6
6 4 5 5
6 6 6 7
7 7 7 7
6 5 7 7
5 3 3 3
5 3 3 5
6 6 6 6
3 2 4 4
5 5 4 5
4 4 4 6
5 3 2 6
3 3 1 1
7 7 6 7
7 4 6 6
6 4 4 6
5 5 5 5
7 7 5 7
6 6 5 6
7 4 6 7
6 5 5 5
4 4 3 4
6 6 5 5
6 5 7 7
6 5 6 6
4 4 4 4
7 5 7 7
6 6 6 7
7 5 6 5
7 4 6 7
7 6 6 7
5 4 5 6
6 6 6 6
1 6 6 1
7 7 7 7
7 5 6 7
6 4 5 6
6 5 3 5
7 3 5 7
6 5 5 6
6 3 6 6
4 4 4 5
6 4 5 6
6 5 6 6
5 4 4 3
6 2 2 5
7 6 5 6
6 6 6 7
6 6 5 6
5 4 5 5
6 6 6 6
4 2 4 4
6 3 5 6
6 5 5 7
7 1 2 2
7 2 6 7
5 3 5 5
6 4 5 6
6 5 6 6
6 5 6 5
7 7 7 7
6 4 4 6
6 5 5 6
7 4 6 7
4 5 5 5
4 1 2 2
6 5 5 7
6 6 5 6
6 6 4 6
5 5 5 5
6 5 5 7
6 6 6 6
5 2 5 5
5 4 5 5
6 1 4 6
6 4 6 7
5 5 4 5
7 6 5 6
5 2 5 3
6 7 4 5
7 5 6 7
7 6 7 7
7 5 5 6
5 3 4 4
6 5 6 7
7 2 6 7
7 7 6 7
7 7 7 7
6 5 5 7
7 6 6 6
6 5 5 5
6 5 5 6
7 5 6 7
6 6 6 7
4 5 5 5
6 5 6 7
6 4 5 6
5 6 4 3
5 3 4 5
6 4 3 4
7 6 6 7
4 1 1 2
6 5 7 7
7 4 5 6
6 4 4 6
7 5 4 6
5 2 4 6
7 5 5 7
4 5 5 6
4 6 4 5
6 7 6 7
7 2 2 2
5 5 5 5
7 7 6 6
5 4 6 6
6 6 6 6
6 5 6 6
4 5 2 5
7 5 6 6
5 4 4 5
7 4 4 6
6 4 4 3
5 5 4 5
5 6 5 6
7 4 6 6
6 7 7 7
6 5 5 6
7 3 6 6
7 6 5 7
7 6 6 7
6 5 4 7
7 5 6 7
7 4 5 7
1 4 1 2
6 6 6 6
5 2 2 5
5 3 4 5
6 4 4 7
6 3 6 6
6 6 7 6
6 2 5 5
5 5 4 6
7 5 6 7
5 4 6 5
7 6 6 5
6 4 5 7
5 3 5 3
5 5 5 5
5 6 5 5
6 5 5 6
3 2 5 5
6 4 5 6
7 5 6 7
4 4 4 4
7 7 7 7
6 4 6 6
5 5 4 5
6 3 4 4
6 5 6 6
7 7 7 7
5 5 4 5
6 6 6 6
5 3 3 5
5 5 3 6
5 7 3 4
1 4 2 5
6 1 4 5
5 4 2 4
5 5 2 5
7 6 4 6
4 7 5 5
5 4 5 6
6 5 3 5
5 5 4 6
5 5 5 5
6 5 6 6
6 4 6 6
7 3 5 5
6 6 6 6
5 5 5 6
6 5 5 7
6 5 4 7
6 5 4 6
7 5 7 7
4 4 4 4
7 7 7 7
7 5 6 6
7 7 7 7
6 1 2 5
5 2 4 5
7 4 4 7
5 5 3 5
7 6 4 6
6 5 1 6
6 4 6 6
2 5 2 4
5 5 5 5
7 5 5 7
7 3 7 7
6 7 6 6
7 5 5 6
7 5 5 7
6 5 5 6
5 6 6 7
6 5 6 7
6 4 7 7
6 6 7 6
7 6 7 7
6 7 7 7
3 4 4 3
6 4 6 5
6 3 3 5
6 5 6 6
7 6 5 7
5 5 5 5
5 6 5 5
5 6 6 7
6 7 7 7
3 3 3 3
6 6 7 7
7 5 4 6
6 6 5 7
6 6 6 6
5 5 5 5
4 4 7 7
7 5 5 6
5 5 6 6
6 5 5 5
3 3 2 5
7 1 6 7
5 6 6 3
6 2 5 5
6 3 5 5
6 6 7 6
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
6 6 6 6
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA
NA NA NA NA

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	'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 & 1 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270344&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]'Gwilym Jenkins' @ jenkins.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270344&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270344&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	'Gwilym Jenkins' @ jenkins.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7952	0.7998	0.7767	0.4997
AMS7E2 excluded	0.7652	0.7677	0.6968	0.5242
AMS14E2 excluded	0.7929	0.7987	0.7461	0.5694
AMS21E2 excluded	0.719	0.7309	0.6816	0.4751
AMS28E2 excluded	0.6947	0.6936	0.6158	0.4301

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7952 & 0.7998 & 0.7767 & 0.4997 \tabularnewline
AMS7E2 excluded & 0.7652 & 0.7677 & 0.6968 & 0.5242 \tabularnewline
AMS14E2 excluded & 0.7929 & 0.7987 & 0.7461 & 0.5694 \tabularnewline
AMS21E2 excluded & 0.719 & 0.7309 & 0.6816 & 0.4751 \tabularnewline
AMS28E2 excluded & 0.6947 & 0.6936 & 0.6158 & 0.4301 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270344&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]0.7952[/C][C]0.7998[/C][C]0.7767[/C][C]0.4997[/C][/ROW]
[ROW][C]AMS7E2 excluded[/C][C]0.7652[/C][C]0.7677[/C][C]0.6968[/C][C]0.5242[/C][/ROW]
[ROW][C]AMS14E2 excluded[/C][C]0.7929[/C][C]0.7987[/C][C]0.7461[/C][C]0.5694[/C][/ROW]
[ROW][C]AMS21E2 excluded[/C][C]0.719[/C][C]0.7309[/C][C]0.6816[/C][C]0.4751[/C][/ROW]
[ROW][C]AMS28E2 excluded[/C][C]0.6947[/C][C]0.6936[/C][C]0.6158[/C][C]0.4301[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270344&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270344&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	0.7952	0.7998	0.7767	0.4997
AMS7E2 excluded	0.7652	0.7677	0.6968	0.5242
AMS14E2 excluded	0.7929	0.7987	0.7461	0.5694
AMS21E2 excluded	0.719	0.7309	0.6816	0.4751
AMS28E2 excluded	0.6947	0.6936	0.6158	0.4301

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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Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code