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Author's title

Author

*Unverified author*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Fri, 07 Nov 2025 05:14:19 +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/2025/Nov/07/t1762488991k0nqdymfvalx7dz.htm/, Retrieved Fri, 28 Aug 2026 09:06:23 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=320555, Retrieved Fri, 28 Aug 2026 09:06:23 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

152

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

-       [Cronbach Alpha] [] [2025-11-07 04:14:19] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

2	2	2	3	3	2	3	3	3	3	3	3	3	2	3
2	3	3	2	4	3	3	2	3	3	3	3	3	3	3
2	2	2	2	2	2	2	3	3	2	2	2	1	2	2
2	2	2	2	2	3	2	2	2	2	2	2	2	2	2
3	3	2	4	4	4	4	3	3	2	3	3	3	4	3
2	2	2	4	4	3	4	2	3	4	2	3	4	3	3
3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
3	3	3	2	3	2	2	2	2	2	3	3	3	3	3
2	3	2	2	2	3	3	2	3	3	3	3	2	3	3
2	3	2	3	3	3	2	2	4	2	3	3	2	3	3
3	3	3	3	3	3	3	2	2	3	3	3	3	3	2
2	2	2	3	3	3	1	1	2	1	2	1	2	3	3
2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
3	3	3	3	3	2	2	3	3	2	2	3	3	3	3
2	2	2	2	2	2	2	2	2	3	2	2	2	2	2
2	2	2	2	2	2	2	2	1	2	2	2	2	2	2
2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
3	3	3	3	3	3	3	3	3	3	3	3	3	2	3
2	2	3	2	3	2	1	2	2	4	2	2	1	1	2
2	2	3	2	3	2	2	2	2	2	1	2	3	2	2
1	3	2	1	2	2	1	2	1	2	1	1	3	2	1
1	3	1	2	4	2	2	1	1	2	1	4	3	1	3
2	3	2	2	3	2	2	2	2	3	2	2	2	2	2
2	2	1	3	3	2	2	2	2	2	2	2	3	3	3
3	2	2	2	4	3	3	3	2	3	2	3	3	3	3
2	2	2	2	2	2	2	2	2	3	2	3	3	2	2
3	3	3	3	3	3	3	3	3	3	2	3	3	3	4
2	3	3	3	3	3	3	3	3	3	3	4	3	3	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=320555&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=320555&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320555&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	0.9137	0.9134	0.9562	0.4127
Q1 excluded	0.9065	0.9056	0.9471	0.4065
Q2 excluded	0.9117	0.9116	0.9546	0.4242
Q3 excluded	0.9134	0.913	0.9522	0.4285
Q4 excluded	0.9049	0.9049	0.95	0.4046
Q5 excluded	0.9111	0.9109	0.9545	0.4219
Q6 excluded	0.906	0.9052	0.9504	0.4054
Q7 excluded	0.9004	0.9011	0.945	0.3941
Q8 excluded	0.9092	0.9089	0.9518	0.416
Q9 excluded	0.9052	0.9049	0.9482	0.4047
Q10 excluded	0.9167	0.9162	0.9563	0.4386
Q11 excluded	0.9057	0.9051	0.9508	0.4053
Q12 excluded	0.9062	0.906	0.9477	0.4078
Q13 excluded	0.9118	0.9115	0.9511	0.424
Q14 excluded	0.9061	0.9056	0.9476	0.4066
Q15 excluded	0.9044	0.9043	0.95	0.4029

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All items & 0.9137 & 0.9134 & 0.9562 & 0.4127 \tabularnewline
Q1 excluded & 0.9065 & 0.9056 & 0.9471 & 0.4065 \tabularnewline
Q2 excluded & 0.9117 & 0.9116 & 0.9546 & 0.4242 \tabularnewline
Q3 excluded & 0.9134 & 0.913 & 0.9522 & 0.4285 \tabularnewline
Q4 excluded & 0.9049 & 0.9049 & 0.95 & 0.4046 \tabularnewline
Q5 excluded & 0.9111 & 0.9109 & 0.9545 & 0.4219 \tabularnewline
Q6 excluded & 0.906 & 0.9052 & 0.9504 & 0.4054 \tabularnewline
Q7 excluded & 0.9004 & 0.9011 & 0.945 & 0.3941 \tabularnewline
Q8 excluded & 0.9092 & 0.9089 & 0.9518 & 0.416 \tabularnewline
Q9 excluded & 0.9052 & 0.9049 & 0.9482 & 0.4047 \tabularnewline
Q10 excluded & 0.9167 & 0.9162 & 0.9563 & 0.4386 \tabularnewline
Q11 excluded & 0.9057 & 0.9051 & 0.9508 & 0.4053 \tabularnewline
Q12 excluded & 0.9062 & 0.906 & 0.9477 & 0.4078 \tabularnewline
Q13 excluded & 0.9118 & 0.9115 & 0.9511 & 0.424 \tabularnewline
Q14 excluded & 0.9061 & 0.9056 & 0.9476 & 0.4066 \tabularnewline
Q15 excluded & 0.9044 & 0.9043 & 0.95 & 0.4029 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=320555&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]0.9137[/C][C]0.9134[/C][C]0.9562[/C][C]0.4127[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.9065[/C][C]0.9056[/C][C]0.9471[/C][C]0.4065[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.9117[/C][C]0.9116[/C][C]0.9546[/C][C]0.4242[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.9134[/C][C]0.913[/C][C]0.9522[/C][C]0.4285[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.9049[/C][C]0.9049[/C][C]0.95[/C][C]0.4046[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]0.9111[/C][C]0.9109[/C][C]0.9545[/C][C]0.4219[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.906[/C][C]0.9052[/C][C]0.9504[/C][C]0.4054[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.9004[/C][C]0.9011[/C][C]0.945[/C][C]0.3941[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.9092[/C][C]0.9089[/C][C]0.9518[/C][C]0.416[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]0.9052[/C][C]0.9049[/C][C]0.9482[/C][C]0.4047[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.9167[/C][C]0.9162[/C][C]0.9563[/C][C]0.4386[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.9057[/C][C]0.9051[/C][C]0.9508[/C][C]0.4053[/C][/ROW]
[ROW][C]Q12 excluded[/C][C]0.9062[/C][C]0.906[/C][C]0.9477[/C][C]0.4078[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.9118[/C][C]0.9115[/C][C]0.9511[/C][C]0.424[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.9061[/C][C]0.9056[/C][C]0.9476[/C][C]0.4066[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.9044[/C][C]0.9043[/C][C]0.95[/C][C]0.4029[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=320555&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320555&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	0.9137	0.9134	0.9562	0.4127
Q1 excluded	0.9065	0.9056	0.9471	0.4065
Q2 excluded	0.9117	0.9116	0.9546	0.4242
Q3 excluded	0.9134	0.913	0.9522	0.4285
Q4 excluded	0.9049	0.9049	0.95	0.4046
Q5 excluded	0.9111	0.9109	0.9545	0.4219
Q6 excluded	0.906	0.9052	0.9504	0.4054
Q7 excluded	0.9004	0.9011	0.945	0.3941
Q8 excluded	0.9092	0.9089	0.9518	0.416
Q9 excluded	0.9052	0.9049	0.9482	0.4047
Q10 excluded	0.9167	0.9162	0.9563	0.4386
Q11 excluded	0.9057	0.9051	0.9508	0.4053
Q12 excluded	0.9062	0.906	0.9477	0.4078
Q13 excluded	0.9118	0.9115	0.9511	0.424
Q14 excluded	0.9061	0.9056	0.9476	0.4066
Q15 excluded	0.9044	0.9043	0.95	0.4029

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

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

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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Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code