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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

Wed, 21 Dec 2016 18:19:48 +0100

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/2016/Dec/21/t1482340819hudod29o4oi1f6y.htm/, Retrieved Tue, 10 Feb 2026 14:00:35 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=302436, Retrieved Tue, 10 Feb 2026 14:00:35 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

296

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

-       [Cronbach Alpha] [cronbach alpha] [2016-12-21 17:19:48] [037c0315c9d4524e6acd33ab3022e7a2] [Current]

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Dataseries X:

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Histogram

Boxplots

4	2	4	3	5	4
5	3	3	4	5	4
4	4	5	4	5	4
3	4	3	3	4	4
4	4	5	4	5	4
3	4	4	4	5	5
3	4	4	3	3	4
3	4	5	4	4	4
4	5	4	4	5	5
4	5	5	4	5	5
4	4	2	4	5	4
4	4	5	3	5	4
4	4	4	3	4	5
3	3	5	4	4	5
4	4	5	4	2	5
3	4	5	4	4	5
3	4	5	4	4	5
NA	NA	5	NA	5	5
5	5	4	3	4	4
4	4	4	4	5	4
3	4	5	3	4	5
4	4	4	4	5	5
4	4	5	4	4	5
4	4	5	4	4	4
4	4	5	4	4	5
3	4	4	4	4	4
3	4	4	3	5	5
4	4	4	4	4	4
2	4	5	4	5	5
5	4	4	4	4	4
4	3	5	4	4	4
4	5	5	4	5	5
5	4	5	4	4	5
4	3	5	4	NA	5
2	3	5	4	5	4
4	5	2	4	4	4
3	4	5	4	4	4
4	3	5	3	4	5
4	3	3	4	4	4
4	4	5	4	4	4
5	4	4	4	4	4
4	5	5	4	5	5
3	3	4	4	4	4
5	5	5	3	5	5
5	4	5	3	4	4
4	4	4	3	4	5
4	4	4	4	4	4
3	5	5	3	3	4
4	4	4	4	5	4
2	3	4	2	NA	4
4	5	5	4	4	4
5	5	2	4	5	4
5	5	5	4	4	4
4	3	5	4	5	5
4	3	4	3	4	5
4	4	5	4	4	4
3	4	4	3	3	4
3	4	4	4	4	3
4	4	4	3	5	4
4	4	4	4	5	4
5	5	3	4	5	5
2	4	4	4	5	5
4	4	4	4	5	5
3	4	4	4	2	4
4	4	5	4	5	5
4	2	4	4	4	4
4	4	4	3	5	3
4	4	4	3	5	4
5	4	5	3	3	5
3	4	4	3	5	5
3	4	4	3	4	5
4	5	5	5	5	4
4	4	3	4	NA	4
4	4	4	4	4	4
4	4	4	5	5	4
3	4	3	4	4	4
4	4	4	4	5	4
3	4	5	3	5	5
3	3	5	4	4	5
4	3	5	4	4	4
4	4	5	4	4	5
3	3	3	4	4	4
4	4	4	4	5	4
4	4	3	4	5	5
4	4	4	4	5	5
5	4	4	4	4	4
5	4	3	5	4	5
4	4	5	4	5	5
3	4	5	4	4	5
3	NA	4	4	4	4
4	2	3	3	4	4
4	4	5	4	4	3
4	4	5	4	4	5
4	4	4	4	5	4
4	5	4	4	5	3
3	4	4	3	5	5
4	4	5	4	4	5
5	4	3	4	4	5
5	4	5	5	4	5
4	5	4	4	5	5
3	4	5	4	4	5
5	3	4	4	5	5
4	4	5	4	4	5
5	4	4	4	4	5
3	4	4	3	NA	4
5	4	4	5	5	5
4	4	5	3	NA	5
4	4	3	3	4	3
4	4	5	4	4	4
4	4	5	4	4	4
3	4	5	4	5	3
4	4	4	4	4	4
4	4	4	3	4	5
3	3	4	3	5	5
4	4	4	3	4	4
3	4	5	4	4	4
4	4	5	4	3	4
5	4	5	1	5	5
5	4	5	4	5	5
4	4	4	4	4	3
4	4	5	3	4	4
3	4	4	3	4	5
4	4	4	4	4	4
4	4	4	4	5	4
4	5	3	4	4	4
3	4	4	4	4	4
4	4	4	3	4	4
4	4	4	4	4	5
3	4	3	3	4	4
4	4	4	3	4	3
3	2	4	2	4	4
4	4	4	3	5	4
5	4	4	3	5	4
2	4	4	3	3	5
3	3	4	4	4	4
4	4	4	3	4	4
5	5	4	4	5	4
NA	NA	2	NA	NA	NA
4	5	5	4	4	4
5	5	5	5	5	4
4	5	5	4	5	5
4	4	4	3	4	5
3	4	5	4	5	4
4	4	5	4	4	4
4	4	2	4	4	4
4	4	3	4	5	5
4	4	4	4	5	5
5	4	5	3	5	4
4	3	5	4	4	4
4	4	5	4	4	4
3	3	2	3	4	4
4	5	5	4	4	3
4	4	4	3	4	4
4	4	4	4	4	5
3	4	5	3	5	5
4	4	5	4	4	5
5	4	5	4	5	4
4	4	5	4	3	4
2	3	5	4	4	4
4	4	4	4	4	5
4	3	4	3	5	5
4	4	4	4	4	3
4	5	5	5	4	4
5	4	3	4	4	4
5	4	4	3	4	4
3	3	1	4	5	5
4	4	4	4	4	5
4	4	4	4	5	4
2	3	4	5	5	4

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	0 seconds
R Server	Big 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 time0 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=302436&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]

0 seconds[/C][/ROW] [ROW]

R Server[/C]

Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=302436&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=302436&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	0 seconds
R Server	Big Analytics Cloud Computing Center

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.3226	0.334	0.3252	0.0771
q1 excluded	0.252	0.2598	0.242	0.0656
q2 excluded	0.1979	0.2125	0.1969	0.0512
q3 excluded	0.3494	0.3425	0.3168	0.0943
q4 excluded	0.2702	0.2833	0.2742	0.0733
q5 excluded	0.3096	0.3169	0.2989	0.0849
q6 excluded	0.3169	0.3404	0.317	0.0936

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.3226 & 0.334 & 0.3252 & 0.0771 \tabularnewline
q1 excluded & 0.252 & 0.2598 & 0.242 & 0.0656 \tabularnewline
q2 excluded & 0.1979 & 0.2125 & 0.1969 & 0.0512 \tabularnewline
q3 excluded & 0.3494 & 0.3425 & 0.3168 & 0.0943 \tabularnewline
q4 excluded & 0.2702 & 0.2833 & 0.2742 & 0.0733 \tabularnewline
q5 excluded & 0.3096 & 0.3169 & 0.2989 & 0.0849 \tabularnewline
q6 excluded & 0.3169 & 0.3404 & 0.317 & 0.0936 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=302436&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]0.3226[/C][C]0.334[/C][C]0.3252[/C][C]0.0771[/C][/ROW]
[ROW][C]q1 excluded[/C][C]0.252[/C][C]0.2598[/C][C]0.242[/C][C]0.0656[/C][/ROW]
[ROW][C]q2 excluded[/C][C]0.1979[/C][C]0.2125[/C][C]0.1969[/C][C]0.0512[/C][/ROW]
[ROW][C]q3 excluded[/C][C]0.3494[/C][C]0.3425[/C][C]0.3168[/C][C]0.0943[/C][/ROW]
[ROW][C]q4 excluded[/C][C]0.2702[/C][C]0.2833[/C][C]0.2742[/C][C]0.0733[/C][/ROW]
[ROW][C]q5 excluded[/C][C]0.3096[/C][C]0.3169[/C][C]0.2989[/C][C]0.0849[/C][/ROW]
[ROW][C]q6 excluded[/C][C]0.3169[/C][C]0.3404[/C][C]0.317[/C][C]0.0936[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=302436&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=302436&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	0.3226	0.334	0.3252	0.0771
q1 excluded	0.252	0.2598	0.242	0.0656
q2 excluded	0.1979	0.2125	0.1969	0.0512
q3 excluded	0.3494	0.3425	0.3168	0.0943
q4 excluded	0.2702	0.2833	0.2742	0.0733
q5 excluded	0.3096	0.3169	0.2989	0.0849
q6 excluded	0.3169	0.3404	0.317	0.0936

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')

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Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code