Repository of Reproducible Computations

Free Statistics

of Irreproducible Research!

Author's title

Author

*The author of this computation has been verified*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Mon, 17 Dec 2018 20:49:00 +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/2018/Dec/17/t15450763215f6p5pghygnnmhp.htm/, Retrieved Tue, 10 Feb 2026 11:36:24 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=315919, Retrieved Tue, 10 Feb 2026 11:36:24 +0000

QR Codes:

Paste this QR Code to cite your computation.

Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

325

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

-       [Cronbach Alpha] [cronbach alpha TVDC] [2018-12-17 19:49:00] [1fa0b6d83deab05e8f8a52e2846ed0da] [Current]

Feedback Forum

Post a new message

Dataseries X:

Download CSV

Histogram

Boxplots

4 3 3 3
5 4 4 3
4 5 5 3
NA 4 4 3
NA 4 4 4
5 3 5 3
5 3 5 NA
NA 4 5 3
NA 4 5 4
5 4 5 3
5 4 5 3
4 4 4 3
4 4 4 4
4 3 4 3
4 4 4 4
5 4 5 3
NA 4 4 4
NA NA NA NA
3 4 4 NA
NA 4 5 4
5 4 4 3
NA 4 4 3
5 4 4 3
NA 4 4 3
NA 4 5 4
NA 3 5 3
4 4 4 4
4 4 4 3
4 4 5 3
4 4 5 3
3 4 3 3
4 3 5 3
5 4 4 4
NA 4 5 2
4 2 4 3
5 4 5 3
NA 4 4 3
3 3 4 4
2 4 4 4
5 4 5 4
NA 4 4 3
5 4 5 3
4 3 3 3
4 4 5 3
4 4 4 3
3 4 5 3
NA 4 5 3
4 4 4 3
3 4 3 3
NA 3 NA NA
5 4 5 3
NA 5 5 3
NA 5 4 4
2 3 3 3
3 4 4 3
2 4 4 3
NA 4 4 3
5 5 4 3
4 4 4 4
NA 4 4 3
5 4 5 3
5 4 4 3
4 5 4 3
5 4 4 3
4 4 4 3
4 2 4 2
5 4 5 3
3 4 4 3
2 4 4 4
5 4 4 3
NA 4 4 3
NA 4 4 3
NA 4 3 3
NA 3 4 3
NA 5 4 4
4 4 4 3
5 3 5 3
3 4 4 3
2 4 4 5
5 4 5 3
NA 4 5 3
1 3 3 3
NA 4 5 3
5 4 4 4
NA 4 5 4
5 5 5 5
4 4 5 4
5 4 5 4
NA 4 4 3
5 4 4 4
5 4 2 3
NA 4 4 3
4 5 5 3
NA 4 5 3
4 5 5 3
NA 4 4 3
4 4 4 4
4 5 4 5
5 4 5 4
5 4 4 3
NA 4 NA NA
NA 4 5 4
4 4 4 3
2 4 4 3
NA 4 4 3
NA 4 5 4
NA 4 4 4
NA 4 5 3
NA 4 4 3
4 4 4 4
NA 4 4 4
NA 4 3 3
NA 4 4 3
3 3 3 3
5 4 5 NA
4 4 4 4
5 4 4 3
NA 4 5 4
5 4 4 3
3 4 4 3
4 4 4 3
3 4 4 3
NA 4 4 4
4 4 4 3
NA 4 5 4
4 4 4 3
5 4 4 3
NA 4 5 3
NA 4 4 3
NA 4 4 3
2 3 3 3
4 4 4 NA
4 5 4 5
NA 3 4 3
2 3 3 3
NA 4 4 NA
4 4 5 5
NA NA 3 NA
4 4 4 3
5 5 5 4
4 5 5 3
NA 3 4 3
3 4 4 3
4 4 4 NA
3 4 3 3
4 5 5 3
2 4 4 4
5 5 5 4
4 3 4 3
NA 4 4 4
NA 3 3 3
4 4 4 4
5 4 4 3
4 4 4 3
2 4 3 3
NA 4 4 3
5 4 5 3
NA 4 3 3
NA 4 4 3
5 4 5 4
4 4 4 3
5 5 5 3
3 4 4 4
NA 4 4 3
4 NA 4 4
NA 3 4 3
4 4 4 4
NA 4 3 3
3 4 4 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=315919&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=315919&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=315919&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	0.5272	0.549	0.5394	0.2333
TVDC1 excluded	0.465	0.4751	0.3854	0.2318
TVDC2 excluded	0.4327	0.4285	0.428	0.2
TVDC3 excluded	0.2849	0.3637	0.3221	0.16
TVDC4 excluded	0.5914	0.6086	0.5334	0.3414

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.5272 & 0.549 & 0.5394 & 0.2333 \tabularnewline
TVDC1 excluded & 0.465 & 0.4751 & 0.3854 & 0.2318 \tabularnewline
TVDC2 excluded & 0.4327 & 0.4285 & 0.428 & 0.2 \tabularnewline
TVDC3 excluded & 0.2849 & 0.3637 & 0.3221 & 0.16 \tabularnewline
TVDC4 excluded & 0.5914 & 0.6086 & 0.5334 & 0.3414 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=315919&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]0.5272[/C][C]0.549[/C][C]0.5394[/C][C]0.2333[/C][/ROW]
[ROW][C]TVDC1 excluded[/C][C]0.465[/C][C]0.4751[/C][C]0.3854[/C][C]0.2318[/C][/ROW]
[ROW][C]TVDC2 excluded[/C][C]0.4327[/C][C]0.4285[/C][C]0.428[/C][C]0.2[/C][/ROW]
[ROW][C]TVDC3 excluded[/C][C]0.2849[/C][C]0.3637[/C][C]0.3221[/C][C]0.16[/C][/ROW]
[ROW][C]TVDC4 excluded[/C][C]0.5914[/C][C]0.6086[/C][C]0.5334[/C][C]0.3414[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=315919&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=315919&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	0.5272	0.549	0.5394	0.2333
TVDC1 excluded	0.465	0.4751	0.3854	0.2318
TVDC2 excluded	0.4327	0.4285	0.428	0.2
TVDC3 excluded	0.2849	0.3637	0.3221	0.16
TVDC4 excluded	0.5914	0.6086	0.5334	0.3414

Parameters (Session):

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