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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

Sat, 06 Dec 2014 17:03:17 +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/06/t14178854059ev7z6b2prxcx2o.htm/, Retrieved Sat, 18 Apr 2026 07:58:29 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=263663, Retrieved Sat, 18 Apr 2026 07:58:29 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

319

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]
- RM      [Cronbach Alpha] [] [2014-10-16 13:44:05] [4c4ebb0b36a379d1d949ba77427e658a]
-  M D      [Cronbach Alpha] [] [2014-12-06 16:59:54] [4c4ebb0b36a379d1d949ba77427e658a]
-    D        [Cronbach Alpha] [] [2014-12-06 17:01:21] [4c4ebb0b36a379d1d949ba77427e658a]
-    D            [Cronbach Alpha] [] [2014-12-06 17:03:17] [d9810f96fa2f1581f787e7f797109997] [Current]
-    D              [Cronbach Alpha] [] [2014-12-06 17:05:58] [4c4ebb0b36a379d1d949ba77427e658a] 

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Dataseries X:

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Boxplots

4 1 3 4 1 4 1 1 1
2 2 1 3 2 2 2 2 1
4 1 2 3 2 2 2 2 2
4 2 3 5 2 5 3 3 4
3 2 1 1 2 2 2 1 2
4 2 2 2 2 3 3 3 3
4 2 2 4 2 2 2 4 2
4 4 2 4 3 4 2 2 2
2 2 2 2 2 3 4 2 2
4 3 4 2 2 3 2 2 2
5 2 2 2 1 1 1 1 1
2 2 2 4 2 2 2 2 1
4 2 2 2 4 4 2 2 2
4 2 2 3 2 4 2 3 2
1 1 1 2 1 1 1 2 1
5 2 2 4 3 5 2 2 2
3 1 2 4 2 2 4 2 1
4 3 2 4 3 3 2 3 3
3 1 2 2 2 4 2 2 1
4 4 2 4 3 4 2 3 1
4 3 3 4 3 4 2 4 2
2 2 2 3 2 3 2 1 2
4 3 3 4 3 3 3 3 3
2 2 4 2 2 2 2 2 4
4 1 2 2 2 3 2 2 1
4 2 3 4 1 1 1 1 1
4 4 2 4 2 4 4 4 4
2 2 3 5 1 2 5 1 5
3 3 2 4 2 2 2 2 2
5 5 5 5 3 5 5 2 4
2 4 2 4 1 1 2 2 2
3 2 1 2 2 2 1 2 2
5 2 2 4 2 4 1 2 1
3 2 2 4 2 3 2 2 2
2 1 2 2 3 1 1 1 1
2 1 2 3 1 3 1 1 1
2 2 2 4 2 2 2 2 2
5 5 5 5 2 4 3 2 0
2 1 2 4 2 2 1 1 1
5 3 2 4 2 3 2 2 2
2 1 2 2 1 2 1 1 1
5 3 5 4 4 4 3 4 5
1 1 1 3 1 1 1 3 2
2 2 4 2 1 1 1 1 1
4 2 2 2 2 2 1 1 1
2 1 2 2 2 2 1 2 2
2 2 2 3 1 2 1 1 1
3 3 1 5 1 2 1 1 1
5 3 4 4 3 3 3 2 1
2 1 2 3 1 2 1 1 1
4 4 2 4 2 3 3 2 2
2 2 2 2 2 3 3 2 2
4 1 1 2 1 1 1 2 1
4 1 5 5 2 2 1 4 1
4 2 2 4 2 2 2 2 2
4 4 2 4 1 3 4 2 2
3 2 2 3 3 2 2 2 2
4 2 2 5 1 1 1 1 1
4 3 2 4 1 2 2 3 1
3 3 2 2 1 4 1 1 1
4 2 2 4 1 3 1 4 1
2 1 1 2 1 1 1 1 1

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	'George Udny Yule' @ yule.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 & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=263663&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]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=263663&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=263663&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	'George Udny Yule' @ yule.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.8257	0.8269	0.8419	0.3467
PERFECTIONISM1 excluded	0.8065	0.8077	0.8165	0.3443
PERFECTIONISM3 excluded	0.8003	0.8031	0.8166	0.3377
PERFECTIONISM5 excluded	0.8117	0.8136	0.8303	0.353
PERFECTIONISM11 excluded	0.8168	0.8186	0.8284	0.3607
PERFECTIONISM15 excluded	0.8111	0.8109	0.8217	0.349
PERFECTIONISM20 excluded	0.7971	0.7988	0.8133	0.3317
PERFECTIONISM22 excluded	0.7999	0.8017	0.8066	0.3357
PERFECTIONISM26 excluded	0.8135	0.8147	0.8282	0.3547
PERFECTIONISM35 excluded	0.8142	0.8142	0.8172	0.354

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8257 & 0.8269 & 0.8419 & 0.3467 \tabularnewline
PERFECTIONISM1 excluded & 0.8065 & 0.8077 & 0.8165 & 0.3443 \tabularnewline
PERFECTIONISM3 excluded & 0.8003 & 0.8031 & 0.8166 & 0.3377 \tabularnewline
PERFECTIONISM5 excluded & 0.8117 & 0.8136 & 0.8303 & 0.353 \tabularnewline
PERFECTIONISM11 excluded & 0.8168 & 0.8186 & 0.8284 & 0.3607 \tabularnewline
PERFECTIONISM15 excluded & 0.8111 & 0.8109 & 0.8217 & 0.349 \tabularnewline
PERFECTIONISM20 excluded & 0.7971 & 0.7988 & 0.8133 & 0.3317 \tabularnewline
PERFECTIONISM22 excluded & 0.7999 & 0.8017 & 0.8066 & 0.3357 \tabularnewline
PERFECTIONISM26 excluded & 0.8135 & 0.8147 & 0.8282 & 0.3547 \tabularnewline
PERFECTIONISM35 excluded & 0.8142 & 0.8142 & 0.8172 & 0.354 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=263663&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]0.8257[/C][C]0.8269[/C][C]0.8419[/C][C]0.3467[/C][/ROW]
[ROW][C]PERFECTIONISM1 excluded[/C][C]0.8065[/C][C]0.8077[/C][C]0.8165[/C][C]0.3443[/C][/ROW]
[ROW][C]PERFECTIONISM3 excluded[/C][C]0.8003[/C][C]0.8031[/C][C]0.8166[/C][C]0.3377[/C][/ROW]
[ROW][C]PERFECTIONISM5 excluded[/C][C]0.8117[/C][C]0.8136[/C][C]0.8303[/C][C]0.353[/C][/ROW]
[ROW][C]PERFECTIONISM11 excluded[/C][C]0.8168[/C][C]0.8186[/C][C]0.8284[/C][C]0.3607[/C][/ROW]
[ROW][C]PERFECTIONISM15 excluded[/C][C]0.8111[/C][C]0.8109[/C][C]0.8217[/C][C]0.349[/C][/ROW]
[ROW][C]PERFECTIONISM20 excluded[/C][C]0.7971[/C][C]0.7988[/C][C]0.8133[/C][C]0.3317[/C][/ROW]
[ROW][C]PERFECTIONISM22 excluded[/C][C]0.7999[/C][C]0.8017[/C][C]0.8066[/C][C]0.3357[/C][/ROW]
[ROW][C]PERFECTIONISM26 excluded[/C][C]0.8135[/C][C]0.8147[/C][C]0.8282[/C][C]0.3547[/C][/ROW]
[ROW][C]PERFECTIONISM35 excluded[/C][C]0.8142[/C][C]0.8142[/C][C]0.8172[/C][C]0.354[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=263663&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=263663&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	0.8257	0.8269	0.8419	0.3467
PERFECTIONISM1 excluded	0.8065	0.8077	0.8165	0.3443
PERFECTIONISM3 excluded	0.8003	0.8031	0.8166	0.3377
PERFECTIONISM5 excluded	0.8117	0.8136	0.8303	0.353
PERFECTIONISM11 excluded	0.8168	0.8186	0.8284	0.3607
PERFECTIONISM15 excluded	0.8111	0.8109	0.8217	0.349
PERFECTIONISM20 excluded	0.7971	0.7988	0.8133	0.3317
PERFECTIONISM22 excluded	0.7999	0.8017	0.8066	0.3357
PERFECTIONISM26 excluded	0.8135	0.8147	0.8282	0.3547
PERFECTIONISM35 excluded	0.8142	0.8142	0.8172	0.354

Parameters (Session):

Parameters (R input):

par1 = TRUE ;

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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Figures (Output of Computation)

Input Parameters & R Code