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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 computationWed, 07 Dec 2016 13:51:00 +0100
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2016/Dec/07/t1481115102gycii3lf5wu1knm.htm/, Retrieved Thu, 12 Feb 2026 17:58:46 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=298074, Retrieved Thu, 12 Feb 2026 17:58:46 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact304

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [Cronbach alpha ] [2016-12-07 12:51:00] [6deb082de88ded72ec069288c69f9f98] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R ServerBig Analytics Cloud Computing Center

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input view raw input (R code)  \tabularnewline
Raw Outputview raw output of R engine  \tabularnewline
Computing time1 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=298074&T=0

[TABLE]
[ROW]
Summary of computational transaction[/C][/ROW] [ROW]Raw Input[/C] view raw input (R code) [/C][/ROW] [ROW]Raw Output[/C]view raw output of R engine [/C][/ROW] [ROW]Computing time[/C]1 seconds[/C][/ROW] [ROW]R Server[/C]Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=298074&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=298074&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 Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R ServerBig Analytics Cloud Computing Center






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.42910.49060.41130.243
GW3 excluded0.17910.18510.1020.102
GW4 excluded0.40520.46580.30360.3036
GW2 excluded0.46790.48890.32350.3235

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.4291 & 0.4906 & 0.4113 & 0.243 \tabularnewline
GW3 excluded & 0.1791 & 0.1851 & 0.102 & 0.102 \tabularnewline
GW4 excluded & 0.4052 & 0.4658 & 0.3036 & 0.3036 \tabularnewline
GW2 excluded & 0.4679 & 0.4889 & 0.3235 & 0.3235 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=298074&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]0.4291[/C][C]0.4906[/C][C]0.4113[/C][C]0.243[/C][/ROW]
[ROW][C]GW3 excluded[/C][C]0.1791[/C][C]0.1851[/C][C]0.102[/C][C]0.102[/C][/ROW]
[ROW][C]GW4 excluded[/C][C]0.4052[/C][C]0.4658[/C][C]0.3036[/C][C]0.3036[/C][/ROW]
[ROW][C]GW2 excluded[/C][C]0.4679[/C][C]0.4889[/C][C]0.3235[/C][C]0.3235[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=298074&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=298074&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 itmes0.42910.49060.41130.243
GW3 excluded0.17910.18510.1020.102
GW4 excluded0.40520.46580.30360.3036
GW2 excluded0.46790.48890.32350.3235


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):
par1 <- 'TRUE'
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')