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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

Tue, 29 Nov 2011 09:39:57 -0500

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/Nov/29/t132257763349026k7po89uq6c.htm/, Retrieved Fri, 19 Apr 2024 08:17:46 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=148434, Retrieved Fri, 19 Apr 2024 08:17:46 +0000

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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]
- R  D  [Cronbach Alpha] [] [2011-10-18 12:27:58] [b98453cac15ba1066b407e146608df68]
- R PD      [Cronbach Alpha] [] [2011-11-29 14:39:57] [b95d9398d16c17c54b557e3a52d461f1] [Current]

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Dataseries X:

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Histogram

Boxplots

5	3	5	3	4	4	4	4	4	5
4	4	4	3	5	5	4	4	3	3
3	4	4	2	4	2	4	4	1	2
4	2	4	2	2	4	4	4	2	3
4	5	3	1	4	2	4	4	2	5
3	5	4	4	4	4	5	3	2	1
4	5	5	2	4	4	3	4	5	3
4	2	4	2	3	4	4	5	2	4
4	4	3	4	3	5	4	3	2	4
4	3	4	5	4	5	4	3	3	2
4	4	5	3	5	5	5	3	1	3
5	4	4	3	3	3	3	4	3	4
4	3	5	2	4	4	5	4	3	4
4	5	4	3	4	4	5	4	2	4
4	2	4	2	2	5	2	4	3	5
4	2	3	3	4	5	3	4	1	3
4	3	4	4	4	2	5	4	2	4
5	2	4	3	4	4	3	5	3	5
5	2	5	2	3	5	4	5	3	5
3	4	2	3	4	4	4	3	2	3
4	2	4	2	4	5	3	4	2	2
4	5	2	2	3	2	4	2	3	4
4	5	4	3	4	4	4	3	4	4
5	2	4	3	4	4	5	4	2	4
5	5	4	2	3	3	5	5	2	5
2	5	4	4	4	5	5	4	4	4
4	4	4	2	4	5	3	4	1	5
4	4	3	3	2	3	4	4	3	3
2	4	4	3	4	4	4	2	2	4
4	3	4	3	4	4	2	4	2	4
5	4	4	1	2	3	3	3	1	5
3	2	5	1	1	2	4	4	2	3
4	4	3	4	4	4	4	2	4	4
4	3	4	3	2	4	4	3	3	4
4	2	4	4	3	4	5	2	2	4
4	2	4	3	3	4	2	3	2	5
3	1	4	3	3	4	3	4	1	3
5	2	4	3	4	4	4	3	3	4
4	4	3	2	3	3	3	2	1	4
4	2	4	2	4	4	4	4	3	4
5	4	5	3	3	4	4	4	2	3
4	2	4	3	4	4	3	4	2	4
5	3	4	4	4	4	4	4	2	4
4	4	2	5	3	3	5	3	2	4
2	4	4	5	4	4	4	4	2	5
5	4	3	3	2	4	4	4	4	4
4	2	4	4	5	4	4	4	2	5
4	3	4	3	3	3	4	3	2	4
4	3	4	3	3	4	4	4	3	4
4	3	5	3	4	4	3	4	3	5
4	3	2	2	4	4	4	4	2	3
4	2	4	3	3	4	3	3	2	4
4	3	5	2	5	2	4	4	1	2
4	4	4	3	2	2	3	5	3	4
2	5	3	2	3	4	4	4	2	3
4	5	4	4	5	3	2	4	1	5
5	4	4	2	4	3	4	4	4	5
4	3	4	2	2	2	4	4	1	3
4	3	4	3	4	4	3	4	4	4
4	2	4	2	4	4	4	4	2	5
4	1	3	3	4	4	3	4	1	3
4	4	3	4	4	4	5	3	4	3
5	1	3	2	4	4	3	5	2	5
4	3	2	2	2	4	5	3	1	5
4	2	3	2	3	3	5	4	3	5
5	4	3	2	3	4	4	4	1	5
4	3	4	2	4	4	3	4	4	4
4	2	4	4	2	4	3	4	1	2
4	3	4	4	5	4	4	4	3	4
4	2	4	4	3	4	4	4	2	4
4	2	4	5	4	5	4	3	3	4
4	4	3	1	3	3	3	4	2	4
2	2	4	3	4	4	4	4	2	5
5	3	5	2	3	5	4	5	1	5
4	2	4	3	3	4	4	4	2	4
3	4	5	5	5	5	4	4	2	2
4	2	4	2	5	5	4	3	4	4
3	2	4	4	4	4	3	4	2	4
2	4	2	2	3	4	4	2	3	2
4	2	4	4	5	5	3	4	2	4
3	2	4	3	2	4	4	4	3	4
5	3	4	3	5	4	4	4	2	3
4	2	4	4	4	4	3	4	2	4
4	2	4	3	4	4	5	4	3	4
4	2	3	2	4	4	3	4	2	4
4	2	3	2	3	4	5	4	2	4
4	3	4	4	5	4	4	4	2	4
4	3	4	2	4	3	4	4	2	3
4	3	3	3	3	3	3	2	1	4
4	3	4	3	4	4	2	4	1	4
5	1	4	1	3	4	3	4	1	5
5	4	5	5	1	3	1	5	3	4
4	3	5	2	3	4	4	4	2	4
4	4	3	2	3	2	4	4	2	4
2	2	4	2	4	4	4	2	1	4
4	1	5	3	4	5	4	5	3	5
3	4	4	3	4	4	4	4	3	4
4	4	3	2	3	4	5	3	3	4
5	3	4	3	4	4	3	4	3	4
4	2	5	3	4	4	2	3	2	3
4	4	4	2	4	3	4	4	4	5
4	4	5	3	1	4	3	5	3	5
4	4	4	2	3	5	4	5	3	2
4	2	2	3	3	4	4	4	2	4
4	3	3	2	3	4	4	4	2	4
3	4	5	4	5	5	4	5	1	4
5	2	4	4	5	4	4	4	2	4
4	5	5	5	4	5	2	4	2	5
4	2	4	4	4	4	4	2	3	5
5	5	5	3	1	4	5	5	5	5

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	'AstonUniversity' @ aston.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 & 'AstonUniversity' @ aston.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=148434&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]'AstonUniversity' @ aston.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=148434&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=148434&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	'AstonUniversity' @ aston.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.2957	0.3152	0.4017	0.044
A1 excluded	0.2896	0.3032	0.3794	0.0461
A2 excluded	0.3567	0.3649	0.4262	0.06
A3 excluded	0.2163	0.2204	0.3091	0.0305
A4 excluded	0.2468	0.2783	0.3621	0.0411
A5 excluded	0.2838	0.305	0.3857	0.0465
A6 excluded	0.2429	0.26	0.337	0.0376
A7 excluded	0.3329	0.37	0.4393	0.0613
A8 excluded	0.2685	0.272	0.3468	0.0399
A9 excluded	0.1791	0.2162	0.3135	0.0297
A10 excluded	0.3011	0.3095	0.3929	0.0474

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.2957 & 0.3152 & 0.4017 & 0.044 \tabularnewline
A1 excluded & 0.2896 & 0.3032 & 0.3794 & 0.0461 \tabularnewline
A2 excluded & 0.3567 & 0.3649 & 0.4262 & 0.06 \tabularnewline
A3 excluded & 0.2163 & 0.2204 & 0.3091 & 0.0305 \tabularnewline
A4 excluded & 0.2468 & 0.2783 & 0.3621 & 0.0411 \tabularnewline
A5 excluded & 0.2838 & 0.305 & 0.3857 & 0.0465 \tabularnewline
A6 excluded & 0.2429 & 0.26 & 0.337 & 0.0376 \tabularnewline
A7 excluded & 0.3329 & 0.37 & 0.4393 & 0.0613 \tabularnewline
A8 excluded & 0.2685 & 0.272 & 0.3468 & 0.0399 \tabularnewline
A9 excluded & 0.1791 & 0.2162 & 0.3135 & 0.0297 \tabularnewline
A10 excluded & 0.3011 & 0.3095 & 0.3929 & 0.0474 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=148434&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]0.2957[/C][C]0.3152[/C][C]0.4017[/C][C]0.044[/C][/ROW]
[ROW][C]A1 excluded[/C][C]0.2896[/C][C]0.3032[/C][C]0.3794[/C][C]0.0461[/C][/ROW]
[ROW][C]A2 excluded[/C][C]0.3567[/C][C]0.3649[/C][C]0.4262[/C][C]0.06[/C][/ROW]
[ROW][C]A3 excluded[/C][C]0.2163[/C][C]0.2204[/C][C]0.3091[/C][C]0.0305[/C][/ROW]
[ROW][C]A4 excluded[/C][C]0.2468[/C][C]0.2783[/C][C]0.3621[/C][C]0.0411[/C][/ROW]
[ROW][C]A5 excluded[/C][C]0.2838[/C][C]0.305[/C][C]0.3857[/C][C]0.0465[/C][/ROW]
[ROW][C]A6 excluded[/C][C]0.2429[/C][C]0.26[/C][C]0.337[/C][C]0.0376[/C][/ROW]
[ROW][C]A7 excluded[/C][C]0.3329[/C][C]0.37[/C][C]0.4393[/C][C]0.0613[/C][/ROW]
[ROW][C]A8 excluded[/C][C]0.2685[/C][C]0.272[/C][C]0.3468[/C][C]0.0399[/C][/ROW]
[ROW][C]A9 excluded[/C][C]0.1791[/C][C]0.2162[/C][C]0.3135[/C][C]0.0297[/C][/ROW]
[ROW][C]A10 excluded[/C][C]0.3011[/C][C]0.3095[/C][C]0.3929[/C][C]0.0474[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=148434&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=148434&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	0.2957	0.3152	0.4017	0.044
A1 excluded	0.2896	0.3032	0.3794	0.0461
A2 excluded	0.3567	0.3649	0.4262	0.06
A3 excluded	0.2163	0.2204	0.3091	0.0305
A4 excluded	0.2468	0.2783	0.3621	0.0411
A5 excluded	0.2838	0.305	0.3857	0.0465
A6 excluded	0.2429	0.26	0.337	0.0376
A7 excluded	0.3329	0.37	0.4393	0.0613
A8 excluded	0.2685	0.272	0.3468	0.0399
A9 excluded	0.1791	0.2162	0.3135	0.0297
A10 excluded	0.3011	0.3095	0.3929	0.0474

Parameters (Session):

par1 = 50 ; par2 = 50 ; par3 = 0 ; par4 = 0 ; par5 = 0 ; par6 = Y ; par7 = Y ; par8 = terrain.colors ;

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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Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code