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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationThu, 11 Dec 2014 10:28:30 +0000
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2014/Dec/11/t1418293736bnt1zy785rg744z.htm/, Retrieved Mon, 18 May 2026 21:47:02 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=265681, Retrieved Mon, 18 May 2026 21:47:02 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact425

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Survey Scores] [Intrinsic Motivat...] [2010-10-12 11:18:40] [b98453cac15ba1066b407e146608df68]
- RMP   [Survey Scores] [] [2014-10-09 22:08:50] [32b17a345b130fdf5cc88718ed94a974]
- R PD    [Survey Scores] [] [2014-12-10 08:52:21] [99723d3e379f668157309b7b2091b15d]
- RMPD        [Cronbach Alpha] [] [2014-12-11 10:28:30] [9cfaa8765546b50e5519e275546e5cfe] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
2 4 1 1 4 2 1 1 1 1 1 2 1 2
2 4 4 3 3 4 2 2 2 3 4 4 2 2
4 4 4 2 2 4 4 2 4 5 2 3 2 4
2 1 2 2 4 5 2 1 2 4 3 4 3 2
2 2 2 2 3 3 3 3 3 3 3 3 3 3
2 4 4 4 4 2 2 2 2 2 4 2 3 2
4 4 4 3 4 4 3 2 2 4 4 4 3 4
2 2 2 2 3 3 3 2 1 2 3 2 3 3
3 3 2 2 4 4 3 2 2 2 4 4 2 4
2 4 1 2 5 4 3 1 1 4 5 5 3 2
1 2 1 1 4 2 2 1 2 2 2 2 2 2
2 4 2 2 4 4 2 2 2 2 2 3 2 4
2 2 1 2 2 2 2 2 2 2 2 3 2 2
2 4 4 3 3 4 4 2 2 4 3 2 2 3
4 2 1 2 5 4 0 4 3 2 4 4 2 2
3 4 4 3 3 4 3 3 4 2 2 4 3 4
1 4 2 4 4 4 2 1 2 3 2 2 2 1
1 2 3 2 4 3 3 1 2 3 3 3 4 3
4 4 3 3 3 4 2 1 2 2 3 3 3 3
4 4 3 3 4 3 4 3 2 2 3 4 1 4
2 4 2 1 5 5 2 2 2 4 2 3 1 4
3 3 2 2 3 4 2 2 2 2 4 4 2 2
5 5 3 3 4 2 4 3 4 4 5 3 3 4
4 4 4 3 3 4 3 3 3 2 3 3 3 4
4 4 4 3 4 5 4 3 3 4 3 3 3 3
2 4 2 2 3 4 2 2 2 3 2 2 2 2
2 4 2 2 4 4 2 2 2 2 4 4 2 2
1 3 2 2 4 3 2 1 2 3 2 2 1 3
1 1 1 1 4 2 1 1 1 1 2 2 1 1
2 4 2 2 3 4 2 2 3 2 2 3 2 2
2 4 2 2 4 3 2 2 2 2 3 2 2 2
4 3 1 2 3 2 3 2 3 2 2 2 2 2
4 4 4 2 3 4 2 4 2 2 2 2 2 4
2 4 2 2 2 4 4 2 2 2 2 4 2 4
2 4 1 2 4 2 4 2 4 2 2 2 3 3
4 2 2 3 3 3 3 3 2 2 2 2 3 4
3 4 2 2 4 4 2 2 3 4 4 3 3 3
2 4 3 4 3 2 4 4 4 4 2 3 3 4
1 2 1 1 4 2 1 1 1 2 2 1 2 1
2 2 2 2 4 4 2 2 2 2 4 4 4 2
4 2 3 4 5 1 2 2 3 2 2 3 3 4
1 2 1 2 4 2 1 1 1 1 1 1 2 1
4 4 2 2 3 3 3 3 2 2 4 4 2 2
4 4 2 3 4 2 2 2 2 2 2 3 2 3
2 3 2 2 4 4 2 2 2 2 2 2 2 3
2 2 1 2 3 3 2 2 2 2 4 4 2 2
5 5 5 5 4 4 5 3 5 5 2 2 5 5
5 4 2 2 4 4 4 3 4 4 4 5 3 3
4 3 1 2 4 2 4 1 2 2 2 2 3 2
2 3 2 3 3 3 4 4 4 3 4 3 2 4
1 3 1 1 3 3 1 1 1 2 2 2 1 1
2 3 3 2 4 4 2 1 2 2 2 4 2 3
4 2 2 2 5 3 1 1 1 1 1 2 3 4
3 3 4 4 2 5 4 2 4 4 2 4 4 4
1 4 1 2 4 4 4 2 2 2 2 2 4 3
1 3 1 2 4 4 1 1 2 5 4 4 2 1
2 3 2 2 4 2 2 2 2 2 2 2 2 2
3 4 2 2 3 2 4 1 2 3 3 4 2 2
2 4 2 4 4 2 2 2 2 2 2 2 2 3
4 4 3 2 3 4 3 2 1 3 3 5 2 3
5 4 3 3 4 4 4 4 3 4 3 4 5 5
2 2 1 1 4 2 2 1 2 2 3 2 2 1
4 3 2 3 3 3 3 3 2 4 3 3 2 4
1 4 1 1 2 2 1 1 1 3 2 2 2 1
3 2 2 3 4 4 2 3 2 3 4 4 2 4
4 4 4 3 4 4 3 3 3 5 4 3 2 3
1 1 2 2 3 3 4 2 2 2 1 2 1 1
1 1 1 1 3 2 1 1 1 2 1 1 1 1
4 4 4 3 4 4 2 3 2 4 4 2 2 3
2 3 2 3 4 4 2 2 2 1 4 2 2 4
2 3 2 2 4 2 2 2 2 3 2 2 2 2
4 4 1 1 4 4 1 1 2 4 3 4 2 1
2 2 2 2 4 3 3 2 2 2 4 3 1 2
3 4 4 2 2 4 2 2 2 4 3 4 1 3
3 3 3 3 4 3 3 2 2 3 3 2 2 5
3 1 2 2 4 4 1 1 1 2 3 2 2 2
2 3 1 1 3 4 1 1 1 3 3 4 1 2
5 1 1 1 4 1 1 1 1 1 2 2 1 1
3 3 3 2 4 3 2 1 2 3 3 3 2 3
1 2 2 1 3 2 1 3 2 2 2 2 3 2
2 2 3 4 5 2 3 2 2 2 2 2 2 4
2 1 1 1 2 2 3 2 2 1 3 2 2 3
4 4 4 4 4 3 3 3 3 4 3 3 3 3
2 2 2 2 4 3 2 2 2 2 2 3 2 2
1 2 2 1 4 2 2 1 2 1 2 2 2 2
5 2 3 2 3 4 2 2 3 4 2 4 2 5
3 2 2 2 3 2 2 1 2 2 3 3 2 2
4 3 3 3 4 3 3 2 2 4 4 4 2 4
2 3 2 2 3 3 2 2 2 2 2 2 2 2
4 4 2 2 2 4 4 3 4 5 4 4 4 4
2 3 2 2 4 3 2 2 2 2 3 2 2 2
2 2 2 1 4 2 1 2 1 2 2 3 2 2
3 3 2 2 4 2 2 1 3 2 2 2 3 2
2 2 2 2 3 3 2 2 2 2 2 2 2 2
2 4 1 1 4 4 2 2 2 2 4 4 3 2
2 2 2 2 3 4 2 2 2 4 2 2 2 3
4 4 1 2 4 5 4 2 4 4 2 2 3 2
4 4 3 3 4 4 2 3 2 3 2 5 4 4
2 3 3 3 4 2 4 3 3 2 2 2 4 3
2 3 2 2 2 4 2 2 2 2 2 2 2 2
4 5 2 2 4 4 4 4 4 2 4 3 4 2
3 2 2 2 2 2 1 1 2 2 4 4 1 2
4 2 3 4 4 3 4 2 3 2 2 2 1 4
3 3 3 3 3 3 3 3 2 3 3 5 1 3
4 4 3 3 3 2 2 3 2 2 3 3 3 3
2 2 1 1 4 2 2 2 2 3 3 4 2 1
3 4 3 3 4 2 3 2 2 3 3 2 3 4
4 3 4 4 4 4 4 2 2 5 1 2 2 2

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'Gertrude Mary Cox' @ cox.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 & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265681&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]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265681&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265681&T=0

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'Gertrude Mary Cox' @ cox.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.85360.84960.88130.2875
PERFECTIONISM9 excluded0.84040.83590.87060.2815
PERFECTIONISM10 excluded0.84180.83710.87340.2834
PERFECTIONISM13 excluded0.83620.83170.8610.2754
PERFECTIONISM14 excluded0.84060.83590.86430.2815
PERFECTIONISM16 excluded0.86530.86650.890.333
PERFECTIONISM17 excluded0.84820.84390.87470.2937
PERFECTIONISM21 excluded0.83740.83240.86590.2764
PERFECTIONISM23 excluded0.83920.8330.86710.2773
PERFECTIONISM25 excluded0.83680.83030.86230.2734
PERFECTIONISM28 excluded0.83990.83550.86880.2809
PERFECTIONISM32 excluded0.85440.85060.87670.3045
PERFECTIONISM33 excluded0.85010.84560.87150.2965
PERFECTIONISM34 excluded0.84670.84230.87570.2912
PERFECTIONISM18 excluded0.83610.83190.86520.2757

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8536 & 0.8496 & 0.8813 & 0.2875 \tabularnewline
PERFECTIONISM9 excluded & 0.8404 & 0.8359 & 0.8706 & 0.2815 \tabularnewline
PERFECTIONISM10 excluded & 0.8418 & 0.8371 & 0.8734 & 0.2834 \tabularnewline
PERFECTIONISM13 excluded & 0.8362 & 0.8317 & 0.861 & 0.2754 \tabularnewline
PERFECTIONISM14 excluded & 0.8406 & 0.8359 & 0.8643 & 0.2815 \tabularnewline
PERFECTIONISM16 excluded & 0.8653 & 0.8665 & 0.89 & 0.333 \tabularnewline
PERFECTIONISM17 excluded & 0.8482 & 0.8439 & 0.8747 & 0.2937 \tabularnewline
PERFECTIONISM21 excluded & 0.8374 & 0.8324 & 0.8659 & 0.2764 \tabularnewline
PERFECTIONISM23 excluded & 0.8392 & 0.833 & 0.8671 & 0.2773 \tabularnewline
PERFECTIONISM25 excluded & 0.8368 & 0.8303 & 0.8623 & 0.2734 \tabularnewline
PERFECTIONISM28 excluded & 0.8399 & 0.8355 & 0.8688 & 0.2809 \tabularnewline
PERFECTIONISM32 excluded & 0.8544 & 0.8506 & 0.8767 & 0.3045 \tabularnewline
PERFECTIONISM33 excluded & 0.8501 & 0.8456 & 0.8715 & 0.2965 \tabularnewline
PERFECTIONISM34 excluded & 0.8467 & 0.8423 & 0.8757 & 0.2912 \tabularnewline
PERFECTIONISM18 excluded & 0.8361 & 0.8319 & 0.8652 & 0.2757 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265681&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]0.8536[/C][C]0.8496[/C][C]0.8813[/C][C]0.2875[/C][/ROW]
[ROW][C]PERFECTIONISM9 excluded[/C][C]0.8404[/C][C]0.8359[/C][C]0.8706[/C][C]0.2815[/C][/ROW]
[ROW][C]PERFECTIONISM10 excluded[/C][C]0.8418[/C][C]0.8371[/C][C]0.8734[/C][C]0.2834[/C][/ROW]
[ROW][C]PERFECTIONISM13 excluded[/C][C]0.8362[/C][C]0.8317[/C][C]0.861[/C][C]0.2754[/C][/ROW]
[ROW][C]PERFECTIONISM14 excluded[/C][C]0.8406[/C][C]0.8359[/C][C]0.8643[/C][C]0.2815[/C][/ROW]
[ROW][C]PERFECTIONISM16 excluded[/C][C]0.8653[/C][C]0.8665[/C][C]0.89[/C][C]0.333[/C][/ROW]
[ROW][C]PERFECTIONISM17 excluded[/C][C]0.8482[/C][C]0.8439[/C][C]0.8747[/C][C]0.2937[/C][/ROW]
[ROW][C]PERFECTIONISM21 excluded[/C][C]0.8374[/C][C]0.8324[/C][C]0.8659[/C][C]0.2764[/C][/ROW]
[ROW][C]PERFECTIONISM23 excluded[/C][C]0.8392[/C][C]0.833[/C][C]0.8671[/C][C]0.2773[/C][/ROW]
[ROW][C]PERFECTIONISM25 excluded[/C][C]0.8368[/C][C]0.8303[/C][C]0.8623[/C][C]0.2734[/C][/ROW]
[ROW][C]PERFECTIONISM28 excluded[/C][C]0.8399[/C][C]0.8355[/C][C]0.8688[/C][C]0.2809[/C][/ROW]
[ROW][C]PERFECTIONISM32 excluded[/C][C]0.8544[/C][C]0.8506[/C][C]0.8767[/C][C]0.3045[/C][/ROW]
[ROW][C]PERFECTIONISM33 excluded[/C][C]0.8501[/C][C]0.8456[/C][C]0.8715[/C][C]0.2965[/C][/ROW]
[ROW][C]PERFECTIONISM34 excluded[/C][C]0.8467[/C][C]0.8423[/C][C]0.8757[/C][C]0.2912[/C][/ROW]
[ROW][C]PERFECTIONISM18 excluded[/C][C]0.8361[/C][C]0.8319[/C][C]0.8652[/C][C]0.2757[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265681&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265681&T=1

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.85360.84960.88130.2875
PERFECTIONISM9 excluded0.84040.83590.87060.2815
PERFECTIONISM10 excluded0.84180.83710.87340.2834
PERFECTIONISM13 excluded0.83620.83170.8610.2754
PERFECTIONISM14 excluded0.84060.83590.86430.2815
PERFECTIONISM16 excluded0.86530.86650.890.333
PERFECTIONISM17 excluded0.84820.84390.87470.2937
PERFECTIONISM21 excluded0.83740.83240.86590.2764
PERFECTIONISM23 excluded0.83920.8330.86710.2773
PERFECTIONISM25 excluded0.83680.83030.86230.2734
PERFECTIONISM28 excluded0.83990.83550.86880.2809
PERFECTIONISM32 excluded0.85440.85060.87670.3045
PERFECTIONISM33 excluded0.85010.84560.87150.2965
PERFECTIONISM34 excluded0.84670.84230.87570.2912
PERFECTIONISM18 excluded0.83610.83190.86520.2757


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = TRUE ;
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')