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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, 13 Oct 2011 05:30:08 -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/13/t1318498260zw7l9ki3bkcxocb.htm/, Retrieved Sun, 12 May 2024 13:58:51 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=128569, Retrieved Sun, 12 May 2024 13:58:51 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

158

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] [WS3 taks2] [2011-10-13 09:30:08] [f59ea4acf51788e47c4ec521df29536b] [Current]

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Dataseries X:

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Boxplots

4	7	7	7	7	1	5	4	4	7	5	5
5	6	5	5	6	3	5	6	5	5	6	4
4	6	5	6	6	4	5	5	4	5	5	5
3	5	5	6	6	5	6	4	5	6	5	6
6	6	5	6	6	5	6	6	5	6	6	5
5	7	7	5	7	7	5	6	7	7	7	7
5	7	7	7	7	1	5	7	4	6	7	7
1	7	5	6	7	5	6	6	6	7	7	6
4	7	3	7	6	2	7	5	4	7	6	7
5	6	6	6	6	3	6	5	3	6	6	6
6	4	7	7	7	6	7	7	5	7	6	7
7	6	6	7	7	4	6	7	2	7	7	5
5	6	5	6	7	3	6	7	3	5	7	3
6	7	3	6	7	3	6	7	3	6	7	2
5	6	7	7	7	6	6	7	7	7	7	7
4	6	5	6	6	5	6	6	5	6	5	5
7	4	7	7	7	5	7	6	5	7	7	5
7	7	7	7	7	5	7	7	4	7	7	6
6	7	7	7	7	1	7	7	6	7	6	7
6	6	6	7	7	5	6	6	6	6	6	6
2	3	5	5	5	3	5	5	4	4	6	5
7	7	7	7	4	4	7	7	6	7	6	7
5	5	4	5	6	2	5	5	3	6	4	5
4	7	7	6	7	3	7	7	2	7	7	5
7	6	7	7	7	5	6	6	5	7	7	6
1	5	7	6	7	5	2	6	5	5	5	7
1	5	7	6	7	5	2	6	5	5	5	7
7	6	3	6	6	2	7	2	1	7	6	2
4	5	7	6	2	4	4	2	5	6	2	6
5	6	5	6	6	6	4	5	6	6	7	6
5	6	7	6	7	6	5	6	5	6	6	7
5	5	5	5	6	4	5	6	6	6	6	6
4	4	5	3	4	6	4	4	7	1	6	6
5	5	4	3	5	3	7	4	4	5	6	4
5	4	5	5	5	6	7	5	5	7	6	6
4	6	6	6	6	3	4	6	6	5	6	6
7	6	7	7	7	4	7	5	7	7	5	7
7	7	5	7	6	4	4	6	2	5	6	5
7	7	7	7	7	7	6	7	7	7	7	7
4	7	7	6	6	5	6	7	5	6	6	6
7	7	6	7	7	5	6	5	5	7	7	5
7	5	6	7	6	4	6	6	5	6	6	6
4	6	7	6	5	6	6	5	6	6	6	7
3	6	7	6	6	4	7	6	5	5	6	6
2	3	6	5	7	4	6	5	5	6	6	6
6	6	6	6	5	2	6	4	4	6	5	6
4	5	4	6	6	3	4	5	2	5	6	3
5	4	7	7	5	6	7	6	6	7	5	6
4	6	5	6	6	4	6	6	4	6	7	4
7	6	6	7	6	6	7	3	6	7	5	6
4	6	5	6	6	3	6	4	3	5	6	4
6	5	3	5	7	4	7	6	3	5	5	3
7	6	7	7	6	5	7	6	7	7	7	7
1	5	6	4	6	2	2	5	4	3	7	4
5	7	6	7	5	7	6	5	4	6	6	7
4	6	5	5	5	6	6	5	5	6	6	5
5	6	5	6	6	5	5	6	5	5	6	5
5	7	7	7	7	1	6	6	2	6	5	4
5	4	7	7	5	6	6	6	6	6	6	6
5	3	7	7	4	6	6	4	6	7	1	6
5	4	6	7	6	2	6	3	5	7	4	7
5	4	6	6	6	5	6	5	6	6	5	5
6	5	7	6	7	5	4	5	4	5	6	4
3	4	7	6	5	6	3	7	6	4	7	7
4	6	5	4	5	5	4	5	4	5	4	4
6	7	7	6	7	4	7	7	4	6	7	7
6	6	6	6	6	6	6	6	6	6	6	6
3	6	5	7	7	2	6	6	4	7	5	6
5	6	6	7	6	6	7	6	6	6	6	6
2	6	5	7	6	5	7	6	5	7	6	5
7	7	5	7	7	4	7	7	5	7	7	5
7	6	6	7	7	2	5	6	6	7	6	6
4	6	6	6	6	2	6	5	2	6	4	5
6	6	6	5	6	5	3	7	6	5	6	6
6	7	7	7	6	6	6	6	7	7	6	6
3	5	6	5	4	6	5	4	5	5	5	5
3	4	5	5	4	5	5	4	5	5	5	5
6	7	7	7	7	5	6	6	6	6	6	6
7	7	7	7	7	5	6	7	7	7	7	7
3	6	6	2	4	5	4	6	5	3	5	5
1	7	7	6	7	5	4	6	6	4	7	7
5	6	6	6	6	3	5	5	2	5	5	2
5	5	6	6	6	4	6	5	5	6	5	5
5	7	7	6	6	3	5	5	6	6	7	6
5	6	6	5	6	4	5	5	6	6	5	7
6	5	7	6	7	7	6	6	7	6	5	7
6	6	7	7	6	5	7	7	5	7	7	5
5	5	5	5	4	5	5	5	5	7	5	5
7	7	3	7	7	1	7	7	1	7	4	1
6	6	6	6	6	4	7	3	5	7	6	6
1	2	6	5	2	4	2	4	5	2	5	5
3	5	5	6	6	3	5	6	4	5	7	6
5	7	6	7	6	5	4	7	5	6	5	7
1	7	6	7	6	5	7	7	3	6	6	6
6	7	6	6	6	6	6	6	6	6	6	6
4	7	7	7	7	5	7	7	5	7	4	5
5	6	6	6	6	3	5	4	6	5	6	6
5	5	6	5	6	3	5	5	4	5	5	5
6	6	6	5	6	4	4	5	5	6	6	6
5	6	7	6	6	5	7	7	5	6	6	6
5	5	6	6	7	5	5	6	6	7	6	6
4	7	5	6	7	3	4	3	2	4	4	5
6	5	5	6	5	5	6	5	6	6	6	5
6	6	6	6	6	6	6	6	6	6	7	6
4	5	6	5	7	6	5	5	5	5	5	6
5	5	6	5	5	5	5	5	5	5	5	5
5	5	5	5	5	4	3	5	6	5	5	6
2	5	6	7	6	4	5	5	4	6	7	6
7	7	4	7	7	2	6	7	4	7	7	1
5	6	6	6	6	3	6	6	6	6	5	7
5	7	7	7	7	6	7	7	7	7	7	7
2	6	7	7	6	6	7	6	6	7	6	6
3	5	5	4	5	6	5	4	3	5	4	4
5	5	5	5	5	5	5	5	5	6	5	5
5	7	7	7	7	6	6	7	5	7	7	6
5	6	3	7	5	2	4	5	2	7	5	3
6	5	7	7	6	6	7	6	7	7	4	7
6	7	5	6	7	5	5	5	5	7	6	6
4	4	7	5	6	3	6	2	5	5	7	6
6	3	5	7	6	5	7	4	2	7	5	6
3	7	3	4	4	4	7	5	3	7	5	5
6	5	6	6	6	6	6	5	6	6	6	6
4	6	5	6	5	5	6	6	6	5	7	6
3	4	4	3	4	4	4	4	3	5	3	3
4	7	7	7	7	7	7	7	7	7	7	7
6	7	6	6	7	2	6	6	5	7	6	5
4	5	7	7	6	6	5	6	7	6	6	6
6	7	2	6	7	6	6	6	4	6	6	5
5	3	5	5	6	4	5	5	5	6	6	5
5	6	6	6	5	4	5	5	6	6	6	6
5	5	6	6	5	3	6	5	4	6	5	5
3	5	6	7	6	6	6	6	6	6	6	6
5	6	2	6	6	5	4	4	3	5	6	5
4	5	6	7	7	6	6	6	3	6	6	3
5	6	7	6	6	6	7	5	6	7	6	7
5	6	4	6	5	1	6	5	3	6	6	3
1	7	7	7	7	5	7	5	7	7	7	7
4	5	7	7	5	4	7	6	5	7	7	5
7	7	6	7	7	6	6	7	5	6	6	6
4	6	6	7	5	6	5	6	5	6	6	6
6	6	2	6	5	5	5	5	4	7	5	4
7	7	7	7	7	4	5	6	5	5	6	6
6	7	7	7	4	5	7	6	7	5	6	7
5	5	5	6	6	4	3	4	3	6	6	4
6	7	5	7	7	3	6	6	6	7	7	6
5	5	6	6	5	3	5	4	4	5	5	5
5	6	5	7	5	6	7	6	5	7	6	6
6	7	6	6	6	2	4	6	4	5	6	4
5	6	6	5	5	4	6	6	4	6	6	5
3	5	6	4	6	4	4	5	5	5	6	5
6	6	5	7	7	4	6	5	5	7	4	5
7	7	6	7	7	5	7	5	6	7	6	6
4	6	7	5	7	3	4	6	7	5	6	7
5	7	7	7	7	5	6	7	6	7	7	7
4	7	6	6	7	4	7	7	5	6	7	6
5	6	6	5	4	4	5	4	5	6	6	6
2	6	6	6	7	6	6	6	6	6	6	5
7	4	7	7	7	7	4	4	6	7	4	7
5	7	6	7	6	5	4	7	5	6	5	7
4	6	5	6	6	4	6	4	3	5	6	6
2	4	5	5	5	3	4	4	4	5	5	4
4	5	5	6	5	1	3	5	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	7 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 & 7 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=128569&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]7 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=128569&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=128569&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	7 seconds
R Server	'Gwilym Jenkins' @ jenkins.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7706	0.7856	0.8402	0.2339
Q1_1 excluded	0.7747	0.7832	0.8389	0.2472
Q1_3 excluded	0.7588	0.7734	0.8292	0.2368
Q1_7 excluded	0.7529	0.772	0.8253	0.2354
Q1_8 excluded	0.742	0.7547	0.814	0.2185
Q1_10 excluded	0.7539	0.7675	0.8253	0.2308
Q1_14 excluded	0.7721	0.7864	0.8378	0.2508
Q1_15 excluded	0.7535	0.7699	0.8238	0.2332
Q1_17 excluded	0.7458	0.7612	0.82	0.2247
Q1_21 excluded	0.7512	0.772	0.8178	0.2353
Q1_22 excluded	0.7445	0.7599	0.8083	0.2235
Q1_24 excluded	0.759	0.7751	0.8305	0.2386
Q1_28 excluded	0.7486	0.7692	0.8169	0.2325

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7706 & 0.7856 & 0.8402 & 0.2339 \tabularnewline
Q1_1 excluded & 0.7747 & 0.7832 & 0.8389 & 0.2472 \tabularnewline
Q1_3 excluded & 0.7588 & 0.7734 & 0.8292 & 0.2368 \tabularnewline
Q1_7 excluded & 0.7529 & 0.772 & 0.8253 & 0.2354 \tabularnewline
Q1_8 excluded & 0.742 & 0.7547 & 0.814 & 0.2185 \tabularnewline
Q1_10 excluded & 0.7539 & 0.7675 & 0.8253 & 0.2308 \tabularnewline
Q1_14 excluded & 0.7721 & 0.7864 & 0.8378 & 0.2508 \tabularnewline
Q1_15 excluded & 0.7535 & 0.7699 & 0.8238 & 0.2332 \tabularnewline
Q1_17 excluded & 0.7458 & 0.7612 & 0.82 & 0.2247 \tabularnewline
Q1_21 excluded & 0.7512 & 0.772 & 0.8178 & 0.2353 \tabularnewline
Q1_22 excluded & 0.7445 & 0.7599 & 0.8083 & 0.2235 \tabularnewline
Q1_24 excluded & 0.759 & 0.7751 & 0.8305 & 0.2386 \tabularnewline
Q1_28 excluded & 0.7486 & 0.7692 & 0.8169 & 0.2325 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=128569&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]0.7706[/C][C]0.7856[/C][C]0.8402[/C][C]0.2339[/C][/ROW]
[ROW][C]Q1_1 excluded[/C][C]0.7747[/C][C]0.7832[/C][C]0.8389[/C][C]0.2472[/C][/ROW]
[ROW][C]Q1_3 excluded[/C][C]0.7588[/C][C]0.7734[/C][C]0.8292[/C][C]0.2368[/C][/ROW]
[ROW][C]Q1_7 excluded[/C][C]0.7529[/C][C]0.772[/C][C]0.8253[/C][C]0.2354[/C][/ROW]
[ROW][C]Q1_8 excluded[/C][C]0.742[/C][C]0.7547[/C][C]0.814[/C][C]0.2185[/C][/ROW]
[ROW][C]Q1_10 excluded[/C][C]0.7539[/C][C]0.7675[/C][C]0.8253[/C][C]0.2308[/C][/ROW]
[ROW][C]Q1_14 excluded[/C][C]0.7721[/C][C]0.7864[/C][C]0.8378[/C][C]0.2508[/C][/ROW]
[ROW][C]Q1_15 excluded[/C][C]0.7535[/C][C]0.7699[/C][C]0.8238[/C][C]0.2332[/C][/ROW]
[ROW][C]Q1_17 excluded[/C][C]0.7458[/C][C]0.7612[/C][C]0.82[/C][C]0.2247[/C][/ROW]
[ROW][C]Q1_21 excluded[/C][C]0.7512[/C][C]0.772[/C][C]0.8178[/C][C]0.2353[/C][/ROW]
[ROW][C]Q1_22 excluded[/C][C]0.7445[/C][C]0.7599[/C][C]0.8083[/C][C]0.2235[/C][/ROW]
[ROW][C]Q1_24 excluded[/C][C]0.759[/C][C]0.7751[/C][C]0.8305[/C][C]0.2386[/C][/ROW]
[ROW][C]Q1_28 excluded[/C][C]0.7486[/C][C]0.7692[/C][C]0.8169[/C][C]0.2325[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=128569&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=128569&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	0.7706	0.7856	0.8402	0.2339
Q1_1 excluded	0.7747	0.7832	0.8389	0.2472
Q1_3 excluded	0.7588	0.7734	0.8292	0.2368
Q1_7 excluded	0.7529	0.772	0.8253	0.2354
Q1_8 excluded	0.742	0.7547	0.814	0.2185
Q1_10 excluded	0.7539	0.7675	0.8253	0.2308
Q1_14 excluded	0.7721	0.7864	0.8378	0.2508
Q1_15 excluded	0.7535	0.7699	0.8238	0.2332
Q1_17 excluded	0.7458	0.7612	0.82	0.2247
Q1_21 excluded	0.7512	0.772	0.8178	0.2353
Q1_22 excluded	0.7445	0.7599	0.8083	0.2235
Q1_24 excluded	0.759	0.7751	0.8305	0.2386
Q1_28 excluded	0.7486	0.7692	0.8169	0.2325

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')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code