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R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Tue, 16 Dec 2014 13:48:52 +0000

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Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2014/Dec/16/t1418737785eodq39u74r5v6c3.htm/, Retrieved Wed, 11 Feb 2026 15:12:29 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=269552, Retrieved Wed, 11 Feb 2026 15:12:29 +0000

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User-defined keywords

Estimated Impact

336

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)

-     [Cronbach Alpha] [CA ] [2014-12-12 10:49:45] [40df8d8b5657a9599acc6ccced535535]
-    D    [Cronbach Alpha] [CA] [2014-12-16 13:48:52] [eeaae55b7499419163eef5a1870a44a7] [Current]

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Dataseries X:

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1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1
1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 0 1 0 1 1 1 1 1 1 0 1
1 0 1 1 1 1 1 1 1 1 1 1 1 0 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
0 1 1 1 1 0 1 0 1 1 1 1 1 1 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
1 0 1 0 1 1 1 1 1 1 1 1 0 1 1 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 0 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 0 1 1
1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 0 0 0 0 1 1 0 0 0 1 1 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 1 1 0 1 0 0 0 1 1 1 1 0 1
1 0 1 1 1 0 0 1 0 0 0 1 1 1 0 1
1 0 0 0 1 1 0 1 1 0 1 1 1 1 0 1
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 0 0 0 0 0 1 1 1 1 0 1
1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 0 1 1 0 1 1 0 1 1 1 1 0 1
1 0 1 1 1 1 1 1 1 1 1 1 1 0 1 1
0 0 0 0 0 1 0 1 0 0 1 1 1 1 0 1
1 1 1 1 1 1 1 1 1 1 1 0 0 0 1 0
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
0 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 0 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 1 1 0 0 0 1 0 1 1 1 1 0 1
1 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 0 0 1 1 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1
1 0 0 1 1 1 1 1 1 1 0 1 1 1 1 1
1 0 0 0 1 0 1 0 1 1 0 1 1 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 0 1 1
0 1 1 0 1 1 1 1 1 1 1 1 1 0 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1
0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 1 0 0 1 1 1 1 1 1 0 1 1 1 1 1
1 1 0 0 1 1 1 1 1 1 1 1 1 0 1 1
1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
1 1 1 1 1 0 0 0 0 0 1 1 1 1 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
0 1 0 0 0 1 1 1 1 1 1 1 1 0 1 1
1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 0 0 1 0 1 1 1 1 1 1 1 1 1 1 1
1 1 0 1 1 1 1 1 1 1 1 1 1 0 1 1
1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1
1 0 0 0 1 1 1 1 0 0 0 1 1 0 0 1
1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
1 1 0 1 0 0 1 0 1 1 1 1 1 0 0 1
0 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 0 1 1 1 1 1 1 1 0 1 1 0 1 1
0 1 1 1 1 0 0 0 1 0 1 1 1 1 0 1
1 0 1 1 1 0 0 0 0 0 1 1 1 1 0 1
0 1 1 1 1 0 0 0 1 0 1 1 1 1 0 1
1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 0 1 1 0 1 1 1 1 0 1
1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1
1 1 1 1 0 0 0 0 1 0 1 1 1 1 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 0 0 1 1 1 0 0 1
1 1 1 1 1 1 1 1 1 1 0 1 0 0 1 0
1 1 1 0 1 1 1 1 1 1 0 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 0 1 1 1 1 1 1 1 1 1 1 1 0 1 1
0 0 0 0 0 1 0 1 1 0 1 1 1 0 0 1
1 0 0 1 0 1 1 1 1 1 0 1 1 0 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=269552&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=269552&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=269552&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	0.7049	0.7383	0.8631	0.1499
CALCQ1 excluded	0.716	0.7467	0.8747	0.1642
CALCQ2 excluded	0.7078	0.742	0.8693	0.1609
CALCQ4.1 excluded	0.7151	0.7437	0.8664	0.1621
CALCQ4.2 excluded	0.7	0.7388	0.8651	0.1586
CALCQ4.3 excluded	0.7076	0.742	0.8708	0.1609
CALCQ8.1 excluded	0.6632	0.7051	0.8331	0.1375
CALCQ8.2 excluded	0.6529	0.6983	0.8317	0.1337
CALCQ8.3 excluded	0.6708	0.7112	0.8363	0.141
CALCQ8.4 excluded	0.6773	0.7167	0.8446	0.1443
CALCQ8.5 excluded	0.6395	0.6914	0.8202	0.13
CALCQ11.1 excluded	0.7225	0.7471	0.8718	0.1646
CALCQ11.2a excluded	0.7005	0.7266	0.8572	0.1505
CALCQ11.2b excluded	0.6974	0.721	0.8347	0.147
CALCQ12 excluded	0.7329	0.7535	0.8763	0.1693
CALCQ8.6 excluded	0.628	0.6855	0.8277	0.1269
CALCQ11.2 excluded	0.6974	0.721	0.8347	0.147

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7049 & 0.7383 & 0.8631 & 0.1499 \tabularnewline
CALCQ1 excluded & 0.716 & 0.7467 & 0.8747 & 0.1642 \tabularnewline
CALCQ2 excluded & 0.7078 & 0.742 & 0.8693 & 0.1609 \tabularnewline
CALCQ4.1 excluded & 0.7151 & 0.7437 & 0.8664 & 0.1621 \tabularnewline
CALCQ4.2 excluded & 0.7 & 0.7388 & 0.8651 & 0.1586 \tabularnewline
CALCQ4.3 excluded & 0.7076 & 0.742 & 0.8708 & 0.1609 \tabularnewline
CALCQ8.1 excluded & 0.6632 & 0.7051 & 0.8331 & 0.1375 \tabularnewline
CALCQ8.2 excluded & 0.6529 & 0.6983 & 0.8317 & 0.1337 \tabularnewline
CALCQ8.3 excluded & 0.6708 & 0.7112 & 0.8363 & 0.141 \tabularnewline
CALCQ8.4 excluded & 0.6773 & 0.7167 & 0.8446 & 0.1443 \tabularnewline
CALCQ8.5 excluded & 0.6395 & 0.6914 & 0.8202 & 0.13 \tabularnewline
CALCQ11.1 excluded & 0.7225 & 0.7471 & 0.8718 & 0.1646 \tabularnewline
CALCQ11.2a excluded & 0.7005 & 0.7266 & 0.8572 & 0.1505 \tabularnewline
CALCQ11.2b excluded & 0.6974 & 0.721 & 0.8347 & 0.147 \tabularnewline
CALCQ12 excluded & 0.7329 & 0.7535 & 0.8763 & 0.1693 \tabularnewline
CALCQ8.6 excluded & 0.628 & 0.6855 & 0.8277 & 0.1269 \tabularnewline
CALCQ11.2 excluded & 0.6974 & 0.721 & 0.8347 & 0.147 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=269552&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]0.7049[/C][C]0.7383[/C][C]0.8631[/C][C]0.1499[/C][/ROW]
[ROW][C]CALCQ1 excluded[/C][C]0.716[/C][C]0.7467[/C][C]0.8747[/C][C]0.1642[/C][/ROW]
[ROW][C]CALCQ2 excluded[/C][C]0.7078[/C][C]0.742[/C][C]0.8693[/C][C]0.1609[/C][/ROW]
[ROW][C]CALCQ4.1 excluded[/C][C]0.7151[/C][C]0.7437[/C][C]0.8664[/C][C]0.1621[/C][/ROW]
[ROW][C]CALCQ4.2 excluded[/C][C]0.7[/C][C]0.7388[/C][C]0.8651[/C][C]0.1586[/C][/ROW]
[ROW][C]CALCQ4.3 excluded[/C][C]0.7076[/C][C]0.742[/C][C]0.8708[/C][C]0.1609[/C][/ROW]
[ROW][C]CALCQ8.1 excluded[/C][C]0.6632[/C][C]0.7051[/C][C]0.8331[/C][C]0.1375[/C][/ROW]
[ROW][C]CALCQ8.2 excluded[/C][C]0.6529[/C][C]0.6983[/C][C]0.8317[/C][C]0.1337[/C][/ROW]
[ROW][C]CALCQ8.3 excluded[/C][C]0.6708[/C][C]0.7112[/C][C]0.8363[/C][C]0.141[/C][/ROW]
[ROW][C]CALCQ8.4 excluded[/C][C]0.6773[/C][C]0.7167[/C][C]0.8446[/C][C]0.1443[/C][/ROW]
[ROW][C]CALCQ8.5 excluded[/C][C]0.6395[/C][C]0.6914[/C][C]0.8202[/C][C]0.13[/C][/ROW]
[ROW][C]CALCQ11.1 excluded[/C][C]0.7225[/C][C]0.7471[/C][C]0.8718[/C][C]0.1646[/C][/ROW]
[ROW][C]CALCQ11.2a excluded[/C][C]0.7005[/C][C]0.7266[/C][C]0.8572[/C][C]0.1505[/C][/ROW]
[ROW][C]CALCQ11.2b excluded[/C][C]0.6974[/C][C]0.721[/C][C]0.8347[/C][C]0.147[/C][/ROW]
[ROW][C]CALCQ12 excluded[/C][C]0.7329[/C][C]0.7535[/C][C]0.8763[/C][C]0.1693[/C][/ROW]
[ROW][C]CALCQ8.6 excluded[/C][C]0.628[/C][C]0.6855[/C][C]0.8277[/C][C]0.1269[/C][/ROW]
[ROW][C]CALCQ11.2 excluded[/C][C]0.6974[/C][C]0.721[/C][C]0.8347[/C][C]0.147[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=269552&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=269552&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	0.7049	0.7383	0.8631	0.1499
CALCQ1 excluded	0.716	0.7467	0.8747	0.1642
CALCQ2 excluded	0.7078	0.742	0.8693	0.1609
CALCQ4.1 excluded	0.7151	0.7437	0.8664	0.1621
CALCQ4.2 excluded	0.7	0.7388	0.8651	0.1586
CALCQ4.3 excluded	0.7076	0.742	0.8708	0.1609
CALCQ8.1 excluded	0.6632	0.7051	0.8331	0.1375
CALCQ8.2 excluded	0.6529	0.6983	0.8317	0.1337
CALCQ8.3 excluded	0.6708	0.7112	0.8363	0.141
CALCQ8.4 excluded	0.6773	0.7167	0.8446	0.1443
CALCQ8.5 excluded	0.6395	0.6914	0.8202	0.13
CALCQ11.1 excluded	0.7225	0.7471	0.8718	0.1646
CALCQ11.2a excluded	0.7005	0.7266	0.8572	0.1505
CALCQ11.2b excluded	0.6974	0.721	0.8347	0.147
CALCQ12 excluded	0.7329	0.7535	0.8763	0.1693
CALCQ8.6 excluded	0.628	0.6855	0.8277	0.1269
CALCQ11.2 excluded	0.6974	0.721	0.8347	0.147

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')

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Dataset

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Input Parameters & R Code