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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

Wed, 01 Oct 2025 14:41:47 +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/Oct/01/t1759322563gyusn4tmdnhey4k.htm/, Retrieved Sat, 06 Jun 2026 06:26:08 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=320282, Retrieved Sat, 06 Jun 2026 06:26:08 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

148

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

-       [Cronbach Alpha] [] [2025-10-01 12:41:47] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

3 2 4 5 1 4
5 3 3 3 1 5
5 4 5 3 3 5
5 3 5 5 2 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=320282&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=320282&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320282&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	0.828	0.8463	1	0.4786
P1 excluded	0.7765	0.8043	0.9964	0.4512
B1 excluded	0.7227	0.7435	0.9568	0.3669
N1 excluded	0.8772	0.8974	1	0.6363
R1 excluded	0.8272	0.8274	1	0.4895
O1 excluded	0.7634	0.796	1	0.4383
P2 excluded	0.8079	0.8274	1	0.4895

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All items & 0.828 & 0.8463 & 1 & 0.4786 \tabularnewline
P1 excluded & 0.7765 & 0.8043 & 0.9964 & 0.4512 \tabularnewline
B1 excluded & 0.7227 & 0.7435 & 0.9568 & 0.3669 \tabularnewline
N1 excluded & 0.8772 & 0.8974 & 1 & 0.6363 \tabularnewline
R1 excluded & 0.8272 & 0.8274 & 1 & 0.4895 \tabularnewline
O1 excluded & 0.7634 & 0.796 & 1 & 0.4383 \tabularnewline
P2 excluded & 0.8079 & 0.8274 & 1 & 0.4895 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=320282&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]0.828[/C][C]0.8463[/C][C]1[/C][C]0.4786[/C][/ROW]
[ROW][C]P1 excluded[/C][C]0.7765[/C][C]0.8043[/C][C]0.9964[/C][C]0.4512[/C][/ROW]
[ROW][C]B1 excluded[/C][C]0.7227[/C][C]0.7435[/C][C]0.9568[/C][C]0.3669[/C][/ROW]
[ROW][C]N1 excluded[/C][C]0.8772[/C][C]0.8974[/C][C]1[/C][C]0.6363[/C][/ROW]
[ROW][C]R1 excluded[/C][C]0.8272[/C][C]0.8274[/C][C]1[/C][C]0.4895[/C][/ROW]
[ROW][C]O1 excluded[/C][C]0.7634[/C][C]0.796[/C][C]1[/C][C]0.4383[/C][/ROW]
[ROW][C]P2 excluded[/C][C]0.8079[/C][C]0.8274[/C][C]1[/C][C]0.4895[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=320282&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320282&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	0.828	0.8463	1	0.4786
P1 excluded	0.7765	0.8043	0.9964	0.4512
B1 excluded	0.7227	0.7435	0.9568	0.3669
N1 excluded	0.8772	0.8974	1	0.6363
R1 excluded	0.8272	0.8274	1	0.4895
O1 excluded	0.7634	0.796	1	0.4383
P2 excluded	0.8079	0.8274	1	0.4895

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