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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, 08 Feb 2023 22:04:12 +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/2023/Feb/08/t1675890327aucajkro024tjvm.htm/, Retrieved Wed, 22 Apr 2026 01:20:03 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=319862, Retrieved Wed, 22 Apr 2026 01:20:03 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

242

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

-       [Cronbach Alpha] [CMN quiz 5_2] [2023-02-08 21:04:12] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Boxplots

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

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	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 time1 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319862&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]

1 seconds[/C][/ROW] [ROW]

R Server[/C]

Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=319862&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319862&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	Big Analytics Cloud Computing Center

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.9266	0.9292	0.9648	0.4356
V1 excluded	0.9179	0.9206	0.9553	0.4202
V2 excluded	0.924	0.9263	0.9585	0.44
V3 excluded	0.9232	0.9262	0.963	0.4394
V4 excluded	0.9183	0.9208	0.9569	0.4207
V5 excluded	0.9253	0.9283	0.9606	0.4471
V6 excluded	0.9209	0.9234	0.9587	0.4298
V7 excluded	0.9251	0.9284	0.9621	0.4478
V8 excluded	0.9198	0.9227	0.9597	0.4272
V9 excluded	0.9243	0.927	0.9647	0.4423
V10 excluded	0.9181	0.9205	0.9581	0.42
V11 excluded	0.922	0.925	0.9568	0.4352
V12 excluded	0.9249	0.9278	0.9639	0.4454
V13 excluded	0.9194	0.9223	0.9612	0.4259
V14 excluded	0.9234	0.9262	0.9631	0.4395
V15 excluded	0.9246	0.9264	0.9616	0.4403
V16 excluded	0.923	0.9258	0.9608	0.4381
V17 excluded	0.925	0.9278	0.9608	0.4454

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.9266 & 0.9292 & 0.9648 & 0.4356 \tabularnewline
V1 excluded & 0.9179 & 0.9206 & 0.9553 & 0.4202 \tabularnewline
V2 excluded & 0.924 & 0.9263 & 0.9585 & 0.44 \tabularnewline
V3 excluded & 0.9232 & 0.9262 & 0.963 & 0.4394 \tabularnewline
V4 excluded & 0.9183 & 0.9208 & 0.9569 & 0.4207 \tabularnewline
V5 excluded & 0.9253 & 0.9283 & 0.9606 & 0.4471 \tabularnewline
V6 excluded & 0.9209 & 0.9234 & 0.9587 & 0.4298 \tabularnewline
V7 excluded & 0.9251 & 0.9284 & 0.9621 & 0.4478 \tabularnewline
V8 excluded & 0.9198 & 0.9227 & 0.9597 & 0.4272 \tabularnewline
V9 excluded & 0.9243 & 0.927 & 0.9647 & 0.4423 \tabularnewline
V10 excluded & 0.9181 & 0.9205 & 0.9581 & 0.42 \tabularnewline
V11 excluded & 0.922 & 0.925 & 0.9568 & 0.4352 \tabularnewline
V12 excluded & 0.9249 & 0.9278 & 0.9639 & 0.4454 \tabularnewline
V13 excluded & 0.9194 & 0.9223 & 0.9612 & 0.4259 \tabularnewline
V14 excluded & 0.9234 & 0.9262 & 0.9631 & 0.4395 \tabularnewline
V15 excluded & 0.9246 & 0.9264 & 0.9616 & 0.4403 \tabularnewline
V16 excluded & 0.923 & 0.9258 & 0.9608 & 0.4381 \tabularnewline
V17 excluded & 0.925 & 0.9278 & 0.9608 & 0.4454 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319862&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]0.9266[/C][C]0.9292[/C][C]0.9648[/C][C]0.4356[/C][/ROW]
[ROW][C]V1 excluded[/C][C]0.9179[/C][C]0.9206[/C][C]0.9553[/C][C]0.4202[/C][/ROW]
[ROW][C]V2 excluded[/C][C]0.924[/C][C]0.9263[/C][C]0.9585[/C][C]0.44[/C][/ROW]
[ROW][C]V3 excluded[/C][C]0.9232[/C][C]0.9262[/C][C]0.963[/C][C]0.4394[/C][/ROW]
[ROW][C]V4 excluded[/C][C]0.9183[/C][C]0.9208[/C][C]0.9569[/C][C]0.4207[/C][/ROW]
[ROW][C]V5 excluded[/C][C]0.9253[/C][C]0.9283[/C][C]0.9606[/C][C]0.4471[/C][/ROW]
[ROW][C]V6 excluded[/C][C]0.9209[/C][C]0.9234[/C][C]0.9587[/C][C]0.4298[/C][/ROW]
[ROW][C]V7 excluded[/C][C]0.9251[/C][C]0.9284[/C][C]0.9621[/C][C]0.4478[/C][/ROW]
[ROW][C]V8 excluded[/C][C]0.9198[/C][C]0.9227[/C][C]0.9597[/C][C]0.4272[/C][/ROW]
[ROW][C]V9 excluded[/C][C]0.9243[/C][C]0.927[/C][C]0.9647[/C][C]0.4423[/C][/ROW]
[ROW][C]V10 excluded[/C][C]0.9181[/C][C]0.9205[/C][C]0.9581[/C][C]0.42[/C][/ROW]
[ROW][C]V11 excluded[/C][C]0.922[/C][C]0.925[/C][C]0.9568[/C][C]0.4352[/C][/ROW]
[ROW][C]V12 excluded[/C][C]0.9249[/C][C]0.9278[/C][C]0.9639[/C][C]0.4454[/C][/ROW]
[ROW][C]V13 excluded[/C][C]0.9194[/C][C]0.9223[/C][C]0.9612[/C][C]0.4259[/C][/ROW]
[ROW][C]V14 excluded[/C][C]0.9234[/C][C]0.9262[/C][C]0.9631[/C][C]0.4395[/C][/ROW]
[ROW][C]V15 excluded[/C][C]0.9246[/C][C]0.9264[/C][C]0.9616[/C][C]0.4403[/C][/ROW]
[ROW][C]V16 excluded[/C][C]0.923[/C][C]0.9258[/C][C]0.9608[/C][C]0.4381[/C][/ROW]
[ROW][C]V17 excluded[/C][C]0.925[/C][C]0.9278[/C][C]0.9608[/C][C]0.4454[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=319862&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319862&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	0.9266	0.9292	0.9648	0.4356
V1 excluded	0.9179	0.9206	0.9553	0.4202
V2 excluded	0.924	0.9263	0.9585	0.44
V3 excluded	0.9232	0.9262	0.963	0.4394
V4 excluded	0.9183	0.9208	0.9569	0.4207
V5 excluded	0.9253	0.9283	0.9606	0.4471
V6 excluded	0.9209	0.9234	0.9587	0.4298
V7 excluded	0.9251	0.9284	0.9621	0.4478
V8 excluded	0.9198	0.9227	0.9597	0.4272
V9 excluded	0.9243	0.927	0.9647	0.4423
V10 excluded	0.9181	0.9205	0.9581	0.42
V11 excluded	0.922	0.925	0.9568	0.4352
V12 excluded	0.9249	0.9278	0.9639	0.4454
V13 excluded	0.9194	0.9223	0.9612	0.4259
V14 excluded	0.9234	0.9262	0.9631	0.4395
V15 excluded	0.9246	0.9264	0.9616	0.4403
V16 excluded	0.923	0.9258	0.9608	0.4381
V17 excluded	0.925	0.9278	0.9608	0.4454

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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Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code