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Author

*Unverified author*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Tue, 23 Mar 2021 03:07:37 +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/2021/Mar/23/t1616465476fepix2ak6yzhcna.htm/, Retrieved Fri, 02 Jun 2023 18:29:14 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=319385, Retrieved Fri, 02 Jun 2023 18:29:14 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

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

-       [Cronbach Alpha] [Cronback calculat...] [2021-03-23 02:07:37] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
4	4	4	5	5	3	4	5	5	4	5	4	4	5	5	5	5	5	5	5	5
4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4
5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
5	5	5	5	5	4	4	4	4	5	5	5	5	4	4	4	4	5	5	5	5
5	5	5	5	5	4	4	4	4	5	5	5	5	4	4	4	4	5	5	5	5
4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
5	5	5	5	5	4	4	4	4	5	5	5	5	4	4	4	4	5	5	5	5

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=319385&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=319385&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319385&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	0.9913	0.9914	0.9996	0.8462
9 excluded	0.9919	0.992	0.9995	0.8604
10 excluded	0.9919	0.992	0.9995	0.8604
11 excluded	0.9919	0.992	0.9995	0.8604
12 excluded	0.9905	0.9906	0.9995	0.8404
13 excluded	0.9905	0.9906	0.9995	0.8404
14 excluded	0.9914	0.9914	0.9995	0.8523
15 excluded	0.9908	0.9909	0.9995	0.8453
16 excluded	0.9908	0.9909	0.9995	0.8449
17 excluded	0.9908	0.9909	0.9995	0.8449
18 excluded	0.9906	0.9907	0.9995	0.8418
19 excluded	0.9905	0.9906	0.9995	0.8404
20 excluded	0.9906	0.9907	0.9995	0.8418
21 excluded	0.9906	0.9907	0.9995	0.8418
22 excluded	0.9908	0.9909	0.9995	0.8449
23 excluded	0.9908	0.9909	0.9995	0.8449
24 excluded	0.9908	0.9909	0.9995	0.8449
25 excluded	0.9908	0.9909	0.9995	0.8449
26 excluded	0.9905	0.9906	0.9995	0.8404
27 excluded	0.9905	0.9906	0.9995	0.8404
28 excluded	0.9905	0.9906	0.9995	0.8404
29 excluded	0.9914	0.9915	1	0.8539

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.9913 & 0.9914 & 0.9996 & 0.8462 \tabularnewline
9 excluded & 0.9919 & 0.992 & 0.9995 & 0.8604 \tabularnewline
10 excluded & 0.9919 & 0.992 & 0.9995 & 0.8604 \tabularnewline
11 excluded & 0.9919 & 0.992 & 0.9995 & 0.8604 \tabularnewline
12 excluded & 0.9905 & 0.9906 & 0.9995 & 0.8404 \tabularnewline
13 excluded & 0.9905 & 0.9906 & 0.9995 & 0.8404 \tabularnewline
14 excluded & 0.9914 & 0.9914 & 0.9995 & 0.8523 \tabularnewline
15 excluded & 0.9908 & 0.9909 & 0.9995 & 0.8453 \tabularnewline
16 excluded & 0.9908 & 0.9909 & 0.9995 & 0.8449 \tabularnewline
17 excluded & 0.9908 & 0.9909 & 0.9995 & 0.8449 \tabularnewline
18 excluded & 0.9906 & 0.9907 & 0.9995 & 0.8418 \tabularnewline
19 excluded & 0.9905 & 0.9906 & 0.9995 & 0.8404 \tabularnewline
20 excluded & 0.9906 & 0.9907 & 0.9995 & 0.8418 \tabularnewline
21 excluded & 0.9906 & 0.9907 & 0.9995 & 0.8418 \tabularnewline
22 excluded & 0.9908 & 0.9909 & 0.9995 & 0.8449 \tabularnewline
23 excluded & 0.9908 & 0.9909 & 0.9995 & 0.8449 \tabularnewline
24 excluded & 0.9908 & 0.9909 & 0.9995 & 0.8449 \tabularnewline
25 excluded & 0.9908 & 0.9909 & 0.9995 & 0.8449 \tabularnewline
26 excluded & 0.9905 & 0.9906 & 0.9995 & 0.8404 \tabularnewline
27 excluded & 0.9905 & 0.9906 & 0.9995 & 0.8404 \tabularnewline
28 excluded & 0.9905 & 0.9906 & 0.9995 & 0.8404 \tabularnewline
29 excluded & 0.9914 & 0.9915 & 1 & 0.8539 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319385&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]0.9913[/C][C]0.9914[/C][C]0.9996[/C][C]0.8462[/C][/ROW]
[ROW][C]9 excluded[/C][C]0.9919[/C][C]0.992[/C][C]0.9995[/C][C]0.8604[/C][/ROW]
[ROW][C]10 excluded[/C][C]0.9919[/C][C]0.992[/C][C]0.9995[/C][C]0.8604[/C][/ROW]
[ROW][C]11 excluded[/C][C]0.9919[/C][C]0.992[/C][C]0.9995[/C][C]0.8604[/C][/ROW]
[ROW][C]12 excluded[/C][C]0.9905[/C][C]0.9906[/C][C]0.9995[/C][C]0.8404[/C][/ROW]
[ROW][C]13 excluded[/C][C]0.9905[/C][C]0.9906[/C][C]0.9995[/C][C]0.8404[/C][/ROW]
[ROW][C]14 excluded[/C][C]0.9914[/C][C]0.9914[/C][C]0.9995[/C][C]0.8523[/C][/ROW]
[ROW][C]15 excluded[/C][C]0.9908[/C][C]0.9909[/C][C]0.9995[/C][C]0.8453[/C][/ROW]
[ROW][C]16 excluded[/C][C]0.9908[/C][C]0.9909[/C][C]0.9995[/C][C]0.8449[/C][/ROW]
[ROW][C]17 excluded[/C][C]0.9908[/C][C]0.9909[/C][C]0.9995[/C][C]0.8449[/C][/ROW]
[ROW][C]18 excluded[/C][C]0.9906[/C][C]0.9907[/C][C]0.9995[/C][C]0.8418[/C][/ROW]
[ROW][C]19 excluded[/C][C]0.9905[/C][C]0.9906[/C][C]0.9995[/C][C]0.8404[/C][/ROW]
[ROW][C]20 excluded[/C][C]0.9906[/C][C]0.9907[/C][C]0.9995[/C][C]0.8418[/C][/ROW]
[ROW][C]21 excluded[/C][C]0.9906[/C][C]0.9907[/C][C]0.9995[/C][C]0.8418[/C][/ROW]
[ROW][C]22 excluded[/C][C]0.9908[/C][C]0.9909[/C][C]0.9995[/C][C]0.8449[/C][/ROW]
[ROW][C]23 excluded[/C][C]0.9908[/C][C]0.9909[/C][C]0.9995[/C][C]0.8449[/C][/ROW]
[ROW][C]24 excluded[/C][C]0.9908[/C][C]0.9909[/C][C]0.9995[/C][C]0.8449[/C][/ROW]
[ROW][C]25 excluded[/C][C]0.9908[/C][C]0.9909[/C][C]0.9995[/C][C]0.8449[/C][/ROW]
[ROW][C]26 excluded[/C][C]0.9905[/C][C]0.9906[/C][C]0.9995[/C][C]0.8404[/C][/ROW]
[ROW][C]27 excluded[/C][C]0.9905[/C][C]0.9906[/C][C]0.9995[/C][C]0.8404[/C][/ROW]
[ROW][C]28 excluded[/C][C]0.9905[/C][C]0.9906[/C][C]0.9995[/C][C]0.8404[/C][/ROW]
[ROW][C]29 excluded[/C][C]0.9914[/C][C]0.9915[/C][C]1[/C][C]0.8539[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=319385&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319385&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	0.9913	0.9914	0.9996	0.8462
9 excluded	0.9919	0.992	0.9995	0.8604
10 excluded	0.9919	0.992	0.9995	0.8604
11 excluded	0.9919	0.992	0.9995	0.8604
12 excluded	0.9905	0.9906	0.9995	0.8404
13 excluded	0.9905	0.9906	0.9995	0.8404
14 excluded	0.9914	0.9914	0.9995	0.8523
15 excluded	0.9908	0.9909	0.9995	0.8453
16 excluded	0.9908	0.9909	0.9995	0.8449
17 excluded	0.9908	0.9909	0.9995	0.8449
18 excluded	0.9906	0.9907	0.9995	0.8418
19 excluded	0.9905	0.9906	0.9995	0.8404
20 excluded	0.9906	0.9907	0.9995	0.8418
21 excluded	0.9906	0.9907	0.9995	0.8418
22 excluded	0.9908	0.9909	0.9995	0.8449
23 excluded	0.9908	0.9909	0.9995	0.8449
24 excluded	0.9908	0.9909	0.9995	0.8449
25 excluded	0.9908	0.9909	0.9995	0.8449
26 excluded	0.9905	0.9906	0.9995	0.8404
27 excluded	0.9905	0.9906	0.9995	0.8404
28 excluded	0.9905	0.9906	0.9995	0.8404
29 excluded	0.9914	0.9915	1	0.8539

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

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

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')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code