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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 computationMon, 15 Dec 2014 10:16:09 +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/15/t14186386250il1zs1prgf9v4r.htm/, Retrieved Sun, 24 May 2026 01:23:43 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=268024, Retrieved Sun, 24 May 2026 01:23:43 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact341

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [] [2014-12-15 10:16:09] [4621f922aed0297f88122271e88ec2ef] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R Server'Sir Ronald Aylmer Fisher' @ fisher.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 & 0 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268024&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]0 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268024&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268024&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 time0 seconds
R Server'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.76660.76740.73740.3976
PERFECTIONISM6 excluded0.74920.75120.70410.4302
PERFECTIONISM12 excluded0.69650.6980.64380.3662
PERFECTIONISM19 excluded0.71160.71290.66410.383
PERFECTIONISM24 excluded0.75370.75280.70530.4323
PERFECTIONISM30 excluded0.70590.70690.65330.3762

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7666 & 0.7674 & 0.7374 & 0.3976 \tabularnewline
PERFECTIONISM6 excluded & 0.7492 & 0.7512 & 0.7041 & 0.4302 \tabularnewline
PERFECTIONISM12 excluded & 0.6965 & 0.698 & 0.6438 & 0.3662 \tabularnewline
PERFECTIONISM19 excluded & 0.7116 & 0.7129 & 0.6641 & 0.383 \tabularnewline
PERFECTIONISM24 excluded & 0.7537 & 0.7528 & 0.7053 & 0.4323 \tabularnewline
PERFECTIONISM30 excluded & 0.7059 & 0.7069 & 0.6533 & 0.3762 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268024&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]0.7666[/C][C]0.7674[/C][C]0.7374[/C][C]0.3976[/C][/ROW]
[ROW][C]PERFECTIONISM6 excluded[/C][C]0.7492[/C][C]0.7512[/C][C]0.7041[/C][C]0.4302[/C][/ROW]
[ROW][C]PERFECTIONISM12 excluded[/C][C]0.6965[/C][C]0.698[/C][C]0.6438[/C][C]0.3662[/C][/ROW]
[ROW][C]PERFECTIONISM19 excluded[/C][C]0.7116[/C][C]0.7129[/C][C]0.6641[/C][C]0.383[/C][/ROW]
[ROW][C]PERFECTIONISM24 excluded[/C][C]0.7537[/C][C]0.7528[/C][C]0.7053[/C][C]0.4323[/C][/ROW]
[ROW][C]PERFECTIONISM30 excluded[/C][C]0.7059[/C][C]0.7069[/C][C]0.6533[/C][C]0.3762[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268024&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268024&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 itmes0.76660.76740.73740.3976
PERFECTIONISM6 excluded0.74920.75120.70410.4302
PERFECTIONISM12 excluded0.69650.6980.64380.3662
PERFECTIONISM19 excluded0.71160.71290.66410.383
PERFECTIONISM24 excluded0.75370.75280.70530.4323
PERFECTIONISM30 excluded0.70590.70690.65330.3762


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')