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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

Sat, 16 Dec 2017 17:45:21 +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/2017/Dec/16/t15134427389uaotndcjj36kap.htm/, Retrieved Thu, 16 May 2024 00:29:12 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=309921, Retrieved Thu, 16 May 2024 00:29:12 +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] [Cronbach Alpha - ...] [2017-12-16 16:45:21] [228f385b091a4ec8014a0b8722ae7714] [Current]

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Dataseries X:

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Histogram

Boxplots

1	3	2	2	1	3
4	5	4	4	5	5
2	4	4	4	4	4
3	4	4	4	4	4
2	3	5	4	5	5
3	3	4	4	5	5
2	4	3	5	4	5
1	3	4	4	4	5
2	3	2	3	4	5
2	4	3	5	4	5
3	3	3	4	4	4
3	3	3	4	4	3
3	3	4	4	4	4
3	4	4	4	4	5
1	2	4	4	4	4
3	4	4	3	5	3
3	2	4	4	3	5
3	3	4	4	4	5
5	3	4	5	5	5
2	3	4	4	4	3
3	4	4	4	4	5
3	2	4	3	4	4
1	3	3	4	5	5
2	2	4	2	5	3
3	4	3	4	5	4
3	2	3	3	4	4
3	4	4	5	3	4
2	3	3	5	5	5
2	3	3	3	5	5
2	3	3	3	4	3
3	5	5	4	5	1
1	2	2	4	3	5
1	2	3	4	3	5
4	1	2	5	5	3
2	4	4	4	3	5
3	4	4	4	4	4
4	3	3	3	4	4
2	4	3	3	4	4
2	2	3	3	4	4
4	4	3	3	3	4
2	3	4	3	3	5
2	3	2	4	5	4
2	2	2	3	4	3
1	2	4	4	5	5
3	4	4	5	3	4
3	2	2	5	5	4
5	4	5	4	5	5
1	3	4	3	4	5
3	5	5	4	4	5
4	4	4	4	4	3
5	5	4	5	5	4
3	2	2	4	4	4
1	4	4	4	3	4
2	3	4	4	3	5
2	3	4	4	4	2
2	3	4	4	5	4
2	3	4	4	4	3
3	3	4	3	5	5
1	2	2	4	2	5
4	4	4	4	5	5
3	3	3	4	4	5
2	3	3	4	4	4
3	3	3	4	4	4
3	3	3	4	5	5
3	2	3	3	5	4
3	4	4	4	4	4
3	3	4	3	4	4
4	4	4	4	4	4
2	4	4	5	5	4
1	4	5	5	4	4
1	2	3	2	5	4
1	4	3	3	4	3
4	3	4	5	5	4
5	4	4	4	4	4
2	3	4	4	4	3
3	3	4	4	5	5
3	3	3	3	3	4
1	2	3	4	4	5
3	4	4	4	3	3
3	4	4	5	5	5
1	4	3	2	5	5
4	4	4	4	5	4
3	3	3	4	4	3
3	3	3	5	5	5
3	4	4	4	4	5
2	4	5	4	4	5
2	3	4	3	3	4
2	3	4	4	4	3
1	3	2	2	2	4
4	4	4	4	5	3
3	4	4	4	5	4
1	4	4	5	4	5
3	4	4	4	4	4
2	3	3	4	5	4
2	2	2	2	5	4
2	2	3	5	4	5
3	2	3	4	4	5
4	2	3	3	5	4
2	3	3	3	3	4
4	4	4	4	5	4
3	3	1	4	4	5
2	3	3	3	3	4
2	3	2	3	3	4
2	2	2	4	3	4
2	4	4	4	3	5
3	4	4	4	5	5
1	3	3	4	4	4
4	3	4	4	5	5
3	3	3	3	3	3
2	3	3	4	4	4
3	2	3	3	3	3
2	2	4	4	2	5
2	2	2	3	5	4
2	2	2	3	5	4
3	4	4	3	3	5
2	3	3	4	5	5
3	3	4	5	5	5
1	2	2	2	4	3
1	1	1	4	5	5
3	4	4	4	4	3
3	4	4	4	3	4
3	4	3	4	3	4
2	1	2	2	4	4
2	2	2	3	4	4
2	3	3	3	4	4
2	4	4	4	5	4
4	4	4	3	5	5
3	3	3	4	5	5
1	2	2	3	5	5
3	3	2	4	3	3
4	4	2	4	4	4
2	3	4	4	4	4
4	4	4	4	4	4
1	2	2	3	5	4
1	2	4	4	5	4
2	1	3	5	2	4
3	3	4	4	5	5
1	3	2	4	5	4
4	3	3	4	5	5
2	3	4	4	5	5
3	2	2	4	4	4
2	2	3	3	3	4
5	3	2	4	3	3
2	2	3	4	4	4
4	3	3	3	3	4
2	1	1	2	5	3
4	3	2	4	2	3
3	5	4	4	5	3
2	4	4	4	4	4
2	2	4	4	4	4
2	2	3	2	4	4
2	4	4	4	3	4
3	3	3	4	4	4
1	3	4	3	5	5
2	4	4	4	3	5
5	2	2	5	5	5
2	4	4	3	5	5
3	3	4	5	4	5
2	2	4	4	5	5
1	3	3	3	5	5
3	3	3	2	2	3
2	4	3	5	5	5
4	3	3	2	5	4
4	2	3	3	4	4
3	3	3	2	5	5
3	3	5	5	5	3
3	4	4	4	4	4
3	3	3	4	5	4
2	2	4	4	4	4
2	4	4	3	4	4
4	3	4	4	4	4
3	3	3	5	4	5
3	4	4	4	4	4
3	3	4	5	4	4
3	3	3	3	4	5
5	3	3	3	5	4
3	4	4	4	4	5
1	3	4	4	4	5
4	4	3	4	4	4
2	2	4	3	5	4
4	4	3	4	3	4
1	2	2	3	5	4
2	4	1	3	5	3
3	4	4	4	4	5
3	4	4	4	4	5
4	4	4	4	5	4
3	4	4	4	4	5
3	3	3	4	3	4
3	3	4	3	5	4
3	4	4	4	5	5
3	3	3	4	4	3
2	2	3	4	4	5
3	3	3	3	5	5
1	1	3	3	4	3
3	3	3	2	5	3
4	3	3	3	5	3
2	3	3	4	3	3
2	4	4	3	4	3
4	2	4	5	2	4
2	3	4	4	4	3
4	4	4	4	4	4
1	2	3	3	3	4
2	1	2	2	5	5
1	2	3	5	3	5
2	3	4	4	4	4
4	3	4	4	4	5
4	3	4	3	5	5
3	4	3	3	5	5
4	3	3	4	3	5
1	4	2	4	2	4
1	4	2	4	2	4
1	2	2	3	5	3
3	3	4	4	4	5
1	2	3	4	4	4
1	1	2	5	5	5
4	4	4	4	5	5
3	4	4	3	5	4
3	2	2	3	5	5
1	2	4	4	4	5
2	3	3	4	5	4
2	3	3	4	5	4
4	2	2	3	4	4
2	2	2	4	5	4
2	4	3	3	4	4
2	3	3	4	5	5
2	2	4	4	5	5
1	2	3	3	5	5
3	3	4	4	5	5
2	3	4	4	4	4
4	4	5	5	5	5
2	3	3	3	3	4
5	3	2	3	5	4
3	3	3	4	4	4
4	3	3	4	4	5
3	4	4	4	4	4
3	4	4	4	4	4
3	4	4	4	4	4
3	4	4	4	5	5
3	2	3	3	5	5
3	5	5	4	5	5
4	3	3	4	4	4
1	2	1	3	5	4
2	2	3	5	4	4
2	2	2	2	1	2
4	4	4	4	4	4
3	3	1	1	2	3
2	2	2	3	4	2
2	2	2	2	4	2
3	4	4	4	4	5
2	4	3	4	5	5
3	3	3	3	3	3
3	4	3	4	5	3
3	2	2	5	5	4
1	1	1	2	4	3
2	3	3	3	3	3
4	4	4	4	4	4
3	3	3	3	3	3
3	2	3	3	4	4
2	2	2	2	4	2
3	2	2	4	4	4
3	2	3	3	2	3
3	3	3	3	3	3
4	4	4	4	3	4
2	4	4	5	4	3
2	5	5	4	5	5
3	4	4	4	4	4
3	3	2	4	4	5
5	4	4	4	5	4
1	2	5	5	5	5
2	3	3	4	4	4
2	4	5	4	5	5
2	4	3	4	4	4
2	4	5	5	4	5
3	4	5	5	5	5
3	4	5	4	5	4
3	2	3	3	4	3
2	4	4	4	5	4
1	3	3	5	5	4
1	3	3	4	4	4
3	3	4	4	4	4
2	2	2	4	5	5
3	2	3	4	5	5
3	4	4	5	1	4
3	4	4	5	5	5
3	3	3	4	5	4
2	3	4	4	5	3
4	3	3	4	3	3
3	4	4	3	5	3
4	3	4	5	5	5
3	5	3	4	3	3
3	3	4	4	5	4
3	4	4	5	5	4
3	1	3	3	2	4
3	3	3	3	5	5
3	4	4	3	3	3
4	3	3	4	4	5
3	1	3	4	4	3
4	4	4	4	4	4
3	4	5	4	5	5
3	3	3	4	4	3
3	4	4	3	3	3
3	4	4	4	5	4
2	3	3	4	3	5
3	3	3	3	3	3
3	3	4	4	5	4
3	4	3	5	4	4
3	5	4	5	5	5
3	4	4	4	4	3
3	4	4	4	4	4
3	2	3	4	3	3
2	2	2	4	5	3
2	4	3	4	5	4
2	3	3	4	4	5
3	3	3	4	2	3
1	2	4	4	5	3
3	3	4	4	3	3
3	3	4	4	4	4
1	3	3	4	3	3
3	4	3	5	5	5
3	4	4	4	5	5
4	3	3	3	4	4
3	3	3	4	4	4
2	4	4	4	4	4
2	4	3	4	5	4
1	3	2	2	2	3
3	3	3	4	2	3
3	4	4	4	4	4
3	4	4	4	5	3
3	4	4	3	4	4
4	2	3	4	4	4
3	4	3	4	4	3
3	4	3	4	3	3
3	3	4	5	3	3
3	4	3	5	3	3
3	4	3	4	4	4
3	2	3	5	5	5
3	4	4	4	5	4
3	4	4	5	5	5
2	4	4	4	3	4
1	2	1	4	4	4
1	3	2	5	4	4
2	2	3	1	5	4
4	4	4	2	4	3
1	3	2	4	4	3
3	3	3	4	3	3
3	4	4	4	4	3
3	4	4	4	4	4
3	4	4	5	4	4
3	5	4	5	5	5
3	4	5	5	5	5
3	4	5	5	3	3
4	4	4	4	4	4
3	3	3	3	4	4
3	3	3	3	3	3
3	3	4	5	4	5
3	3	4	5	5	5
2	4	4	4	5	5
1	4	3	4	3	4
1	3	2	3	4	3
3	4	3	4	4	4
4	3	3	4	3	4
2	4	3	3	4	3
2	4	3	4	4	3
4	2	4	4	5	4
1	3	4	4	3	3
3	3	3	5	5	3
4	2	3	3	5	4
5	4	3	5	3	3
2	2	5	5	4	5
3	4	5	5	5	5
3	4	4	4	5	3
2	4	4	4	3	4
5	5	4	3	4	5
3	3	3	4	5	4
3	4	3	4	4	5
3	4	4	5	4	4
2	3	3	3	5	3
2	5	4	3	5	4
3	4	4	4	2	4
3	5	5	4	5	4
2	2	2	3	3	3
3	3	3	3	4	3
3	3	3	5	5	5
4	3	4	5	3	4
4	4	5	4	4	5
2	4	4	2	4	3
2	2	3	3	4	3
3	3	4	4	4	4
3	3	3	4	4	4
2	4	3	3	3	3
3	4	4	3	4	4
3	4	4	4	5	3
3	3	4	5	4	3
3	4	4	5	4	5
4	5	5	5	4	3
2	2	3	4	5	2
3	4	3	2	4	3
3	4	4	3	5	4
3	3	3	5	4	3
3	3	3	3	3	3
3	4	3	3	4	3
2	4	3	4	4	3
3	4	4	5	4	3
2	2	3	5	5	5
3	3	3	3	4	4
3	4	4	4	5	4
2	4	2	4	4	3
2	3	5	4	4	5
3	3	3	3	5	4
3	3	5	5	4	5
4	4	3	3	4	4
3	3	2	3	4	4
3	3	4	2	4	4
3	4	5	3	4	5
3	4	3	5	4	3
4	4	4	5	5	4
2	2	4	4	5	5
3	3	3	4	4	4
3	2	4	3	4	4
3	4	4	4	4	4
1	2	2	3	5	5
3	3	3	4	5	4
3	3	4	4	5	3
3	3	3	4	4	4
2	4	4	5	4	4
3	4	4	4	4	3
3	4	4	3	3	4
2	3	3	3	3	3
3	4	4	4	4	3
4	4	3	4	5	4
2	2	3	5	4	5
3	3	2	4	5	5
2	4	3	3	5	4
3	5	4	5	5	4
5	5	5	5	5	4
2	3	2	5	4	5
2	2	2	4	3	4
5	4	3	4	3	4
4	3	3	4	4	4
2	3	4	5	5	5
3	3	3	3	4	4
2	4	4	5	5	4
2	4	4	4	5	4
4	5	4	5	5	5
3	4	4	4	5	4
3	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=309921&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=309921&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=309921&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	0.5963	0.5984	0.5998	0.1989
Clear_error_Messages excluded	0.586	0.5864	0.5803	0.2209
Understandable_Information excluded	0.5182	0.5267	0.4967	0.1821
Effective_Information excluded	0.4708	0.475	0.457	0.1532
Website_Functions excluded	0.5329	0.5321	0.5357	0.1853
Software_Stability excluded	0.5996	0.5995	0.5886	0.2304
Computations_Reproducibility excluded	0.5862	0.5876	0.569	0.2218

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.5963 & 0.5984 & 0.5998 & 0.1989 \tabularnewline
Clear_error_Messages excluded & 0.586 & 0.5864 & 0.5803 & 0.2209 \tabularnewline
Understandable_Information excluded & 0.5182 & 0.5267 & 0.4967 & 0.1821 \tabularnewline
Effective_Information excluded & 0.4708 & 0.475 & 0.457 & 0.1532 \tabularnewline
Website_Functions excluded & 0.5329 & 0.5321 & 0.5357 & 0.1853 \tabularnewline
Software_Stability excluded & 0.5996 & 0.5995 & 0.5886 & 0.2304 \tabularnewline
Computations_Reproducibility excluded & 0.5862 & 0.5876 & 0.569 & 0.2218 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=309921&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]0.5963[/C][C]0.5984[/C][C]0.5998[/C][C]0.1989[/C][/ROW]
[ROW][C]Clear_error_Messages excluded[/C][C]0.586[/C][C]0.5864[/C][C]0.5803[/C][C]0.2209[/C][/ROW]
[ROW][C]Understandable_Information excluded[/C][C]0.5182[/C][C]0.5267[/C][C]0.4967[/C][C]0.1821[/C][/ROW]
[ROW][C]Effective_Information excluded[/C][C]0.4708[/C][C]0.475[/C][C]0.457[/C][C]0.1532[/C][/ROW]
[ROW][C]Website_Functions excluded[/C][C]0.5329[/C][C]0.5321[/C][C]0.5357[/C][C]0.1853[/C][/ROW]
[ROW][C]Software_Stability excluded[/C][C]0.5996[/C][C]0.5995[/C][C]0.5886[/C][C]0.2304[/C][/ROW]
[ROW][C]Computations_Reproducibility excluded[/C][C]0.5862[/C][C]0.5876[/C][C]0.569[/C][C]0.2218[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=309921&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=309921&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	0.5963	0.5984	0.5998	0.1989
Clear_error_Messages excluded	0.586	0.5864	0.5803	0.2209
Understandable_Information excluded	0.5182	0.5267	0.4967	0.1821
Effective_Information excluded	0.4708	0.475	0.457	0.1532
Website_Functions excluded	0.5329	0.5321	0.5357	0.1853
Software_Stability excluded	0.5996	0.5995	0.5886	0.2304
Computations_Reproducibility excluded	0.5862	0.5876	0.569	0.2218

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