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Author

*Unverified author*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Wed, 02 Jul 2025 20:35:43 +0200

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/2025/Jul/02/t1751488002dvu3w3ijc04yiar.htm/, Retrieved Sun, 30 Aug 2026 05:39:17 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=320243, Retrieved Sun, 30 Aug 2026 05:39:17 +0000

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Original text written by user:

grupo intervención

IsPrivate?

No (this computation is public)

User-defined keywords

Todas las respuestas

Estimated Impact

223

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

-       [Cronbach Alpha] [Pre test] [2025-07-02 18:35:43] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Boxplots

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

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=320243&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=320243&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320243&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 items	0.8725	0.9037	1	0.3428
Q1 excluded	0.8731	0.9035	1	0.3551
Q2 excluded	0.8677	0.8962	1	0.3369
Q3 excluded	0.8631	0.8929	1	0.3291
Q4 excluded	0.8692	0.8993	1	0.3445
Q5 excluded	0.8865	0.9135	1	0.3832
Q6 excluded	0.8631	0.8929	1	0.3291
Q7 excluded	0.8849	0.9129	1	0.3815
Q8 excluded	0.861	0.8963	1	0.337
Q9 excluded	0.8573	0.8943	1	0.3324
Q10 excluded	0.8734	0.9068	1	0.3639
Q11 excluded	0.8666	0.8951	1	0.3342
Q12 excluded	0.8547	0.8907	1	0.3241
Q13 excluded	0.8554	0.8962	1	0.3369
Q14 excluded	0.8654	0.9007	1	0.3478
Q15 excluded	0.8684	0.8929	1	0.3291
Q16 excluded	0.8465	0.8899	1	0.3223
Q17 excluded	0.849	0.8898	1	0.3219
Q18 excluded	0.8718	0.9058	1	0.3614
Q19 excluded	NA	NA	NA	NA
Q20 excluded	NA	NA	NA	NA

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All items & 0.8725 & 0.9037 & 1 & 0.3428 \tabularnewline
Q1 excluded & 0.8731 & 0.9035 & 1 & 0.3551 \tabularnewline
Q2 excluded & 0.8677 & 0.8962 & 1 & 0.3369 \tabularnewline
Q3 excluded & 0.8631 & 0.8929 & 1 & 0.3291 \tabularnewline
Q4 excluded & 0.8692 & 0.8993 & 1 & 0.3445 \tabularnewline
Q5 excluded & 0.8865 & 0.9135 & 1 & 0.3832 \tabularnewline
Q6 excluded & 0.8631 & 0.8929 & 1 & 0.3291 \tabularnewline
Q7 excluded & 0.8849 & 0.9129 & 1 & 0.3815 \tabularnewline
Q8 excluded & 0.861 & 0.8963 & 1 & 0.337 \tabularnewline
Q9 excluded & 0.8573 & 0.8943 & 1 & 0.3324 \tabularnewline
Q10 excluded & 0.8734 & 0.9068 & 1 & 0.3639 \tabularnewline
Q11 excluded & 0.8666 & 0.8951 & 1 & 0.3342 \tabularnewline
Q12 excluded & 0.8547 & 0.8907 & 1 & 0.3241 \tabularnewline
Q13 excluded & 0.8554 & 0.8962 & 1 & 0.3369 \tabularnewline
Q14 excluded & 0.8654 & 0.9007 & 1 & 0.3478 \tabularnewline
Q15 excluded & 0.8684 & 0.8929 & 1 & 0.3291 \tabularnewline
Q16 excluded & 0.8465 & 0.8899 & 1 & 0.3223 \tabularnewline
Q17 excluded & 0.849 & 0.8898 & 1 & 0.3219 \tabularnewline
Q18 excluded & 0.8718 & 0.9058 & 1 & 0.3614 \tabularnewline
Q19 excluded & NA & NA & NA & NA \tabularnewline
Q20 excluded & NA & NA & NA & NA \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=320243&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 items[/C][C]0.8725[/C][C]0.9037[/C][C]1[/C][C]0.3428[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.8731[/C][C]0.9035[/C][C]1[/C][C]0.3551[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.8677[/C][C]0.8962[/C][C]1[/C][C]0.3369[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.8631[/C][C]0.8929[/C][C]1[/C][C]0.3291[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.8692[/C][C]0.8993[/C][C]1[/C][C]0.3445[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]0.8865[/C][C]0.9135[/C][C]1[/C][C]0.3832[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.8631[/C][C]0.8929[/C][C]1[/C][C]0.3291[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.8849[/C][C]0.9129[/C][C]1[/C][C]0.3815[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.861[/C][C]0.8963[/C][C]1[/C][C]0.337[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]0.8573[/C][C]0.8943[/C][C]1[/C][C]0.3324[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.8734[/C][C]0.9068[/C][C]1[/C][C]0.3639[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.8666[/C][C]0.8951[/C][C]1[/C][C]0.3342[/C][/ROW]
[ROW][C]Q12 excluded[/C][C]0.8547[/C][C]0.8907[/C][C]1[/C][C]0.3241[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.8554[/C][C]0.8962[/C][C]1[/C][C]0.3369[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.8654[/C][C]0.9007[/C][C]1[/C][C]0.3478[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.8684[/C][C]0.8929[/C][C]1[/C][C]0.3291[/C][/ROW]
[ROW][C]Q16 excluded[/C][C]0.8465[/C][C]0.8899[/C][C]1[/C][C]0.3223[/C][/ROW]
[ROW][C]Q17 excluded[/C][C]0.849[/C][C]0.8898[/C][C]1[/C][C]0.3219[/C][/ROW]
[ROW][C]Q18 excluded[/C][C]0.8718[/C][C]0.9058[/C][C]1[/C][C]0.3614[/C][/ROW]
[ROW][C]Q19 excluded[/C][C]NA[/C][C]NA[/C][C]NA[/C][C]NA[/C][/ROW]
[ROW][C]Q20 excluded[/C][C]NA[/C][C]NA[/C][C]NA[/C][C]NA[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=320243&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320243&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 items	0.8725	0.9037	1	0.3428
Q1 excluded	0.8731	0.9035	1	0.3551
Q2 excluded	0.8677	0.8962	1	0.3369
Q3 excluded	0.8631	0.8929	1	0.3291
Q4 excluded	0.8692	0.8993	1	0.3445
Q5 excluded	0.8865	0.9135	1	0.3832
Q6 excluded	0.8631	0.8929	1	0.3291
Q7 excluded	0.8849	0.9129	1	0.3815
Q8 excluded	0.861	0.8963	1	0.337
Q9 excluded	0.8573	0.8943	1	0.3324
Q10 excluded	0.8734	0.9068	1	0.3639
Q11 excluded	0.8666	0.8951	1	0.3342
Q12 excluded	0.8547	0.8907	1	0.3241
Q13 excluded	0.8554	0.8962	1	0.3369
Q14 excluded	0.8654	0.9007	1	0.3478
Q15 excluded	0.8684	0.8929	1	0.3291
Q16 excluded	0.8465	0.8899	1	0.3223
Q17 excluded	0.849	0.8898	1	0.3219
Q18 excluded	0.8718	0.9058	1	0.3614
Q19 excluded	NA	NA	NA	NA
Q20 excluded	NA	NA	NA	NA

Parameters (Session):

par1 = VERDADERO ;

Parameters (R input):

par1 = VERDADERO ;

R code (references can be found in the software module):

par1 &lt;- 'VERDADERO'
library(psych)
par1b &lt;- T
if(par1=='FALSE') par1b &lt;- F
z &lt;- t(y)
(r &lt;- alpha(z,check.keys=par1b))
load(file='createtable')
a&lt;-table.start()
a&lt;-table.row.start(a)
a&lt;-table.element(a,'Cronbach Alpha and Related Statistics',5,TRUE)
a&lt;-table.row.end(a)
a&lt;-table.row.start(a)
a&lt;-table.element(a,'Items',1,TRUE)
a&lt;-table.element(a,'Cronbach Alpha',1,TRUE)
a&lt;-table.element(a,'Std. Alpha',1,TRUE)
a&lt;-table.element(a,'G6(smc)',1,TRUE)
a&lt;-table.element(a,'Average R',1,TRUE)
a&lt;-table.row.end(a)
a&lt;-table.row.start(a)
a&lt;-table.element(a,'All items',header=TRUE)
a&lt;-table.element(a,round(r$total['raw_alpha'],4))
a&lt;-table.element(a,round(r$total['std.alpha'],4))
a&lt;-table.element(a,round(r$total['G6(smc)'],4))
a&lt;-table.element(a,round(r$total['average_r'],4))
a&lt;-table.row.end(a)
n = length(z[1,])
for (i in 1:n) {
a&lt;-table.row.start(a)
a&lt;-table.element(a,paste(colnames(z)[i],' excluded',sep=''),header=TRUE)
a&lt;-table.element(a,round(r$alpha.drop[i,'raw_alpha'],4))
a&lt;-table.element(a,round(r$alpha.drop[i,'std.alpha'],4))
a&lt;-table.element(a,round(r$alpha.drop[i,'G6(smc)'],4))
a&lt;-table.element(a,round(r$alpha.drop[i,'average_r'],4))
a&lt;-table.row.end(a)
}
a&lt;-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