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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

Wed, 10 Dec 2014 14:10:13 +0000

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/2014/Dec/10/t1418220630wxmd8nvyh5ua3ay.htm/, Retrieved Sun, 19 May 2024 13:58:03 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=265233, Retrieved Sun, 19 May 2024 13:58:03 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

100

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

-     [Histogram] [1.1 AMSI - histogram] [2014-12-09 11:36:56] [4d39cf209776852399955073f9d0ee7a]
- R  D  [Histogram] [1.1 AMSE : Histog...] [2014-12-10 13:00:22] [765bd0d5d4a0c852014c120c6930661d]
- RMPD    [Cronbach Alpha] [1.1 AMSI : Cronba...] [2014-12-10 13:58:26] [765bd0d5d4a0c852014c120c6930661d]
- R  D        [Cronbach Alpha] [1.1 AMSE : Cronba...] [2014-12-10 14:10:13] [706bcb1d0c5210dc074174906fafd7a3] [Current]

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Dataseries X:

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Histogram

Boxplots

3	4	3	5
7	7	6	7
4	6	6	7
5	6	6	6
6	4	6	4
6	5	5	2
6	5	6	5
4	5	6	5
5	6	5	5
6	7	6	6
5	5	3	6
5	7	7	6
6	6	6	6
1	7	7	7
7	7	7	7
7	7	4	4
5	6	5	5
3	6	7	7
4	5	5	5
5	5	5	6
5	7	7	6
6	4	6	7
7	7	7	7
5	5	1	3
6	5	6	6
5	6	6	7
6	7	5	7
2	4	5	4
4	5	7	7
5	7	7	7
3	5	7	6
6	7	6	7
2	5	4	4
5	6	6	6
4	4	3	4
1	5	5	5
5	5	5	5
4	5	5	6
4	6	5	5
5	6	5	5
7	7	7	7
2	6	5	6
3	7	4	7
4	7	5	6
7	7	6	7
5	5	5	5
4	4	5	4
6	7	6	7
5	5	6	5
6	6	6	6
6	5	5	5
6	7	5	7
5	6	5	6
2	5	5	5
3	3	5	3
5	6	6	6
7	7	7	7
6	6	6	6
5	6	5	6
6	6	6	6
6	7	6	6
5	6	5	5
4	6	6	6
2	5	4	5
3	5	5	5
6	7	7	7
4	4	4	5
6	7	5	7
6	7	5	6
6	5	5	5
7	4	5	5
4	5	6	4
7	7	6	7
7	7	7	7
4	5	5	5
5	6	6	6
5	6	7	7
5	7	7	7
5	6	7	7
5	7	6	7
6	6	6	6
6	6	6	6
7	6	5	6
4	6	6	6
7	6	2	6
5	6	2	4
5	6	6	6
1	5	6	5
5	7	6	7
5	5	5	4
2	2	2	2
4	4	4	2
4	7	6	5
6	7	6	6
7	7	7	7
4	7	7	7
7	6	6	5
2	3	5	5
7	6	6	6
4	6	7	7
7	7	7	7
7	6	5	6
5	6	7	7
5	6	6	6
7	7	5	7
5	7	7	7
6	6	5	5
5	6	7	7
3	5	6	6
3	7	6	6
5	7	7	7
3	6	5	6
5	7	7	7
6	7	7	6
5	5	6	5
5	5	6	5
4	7	6	7
4	6	6	5
4	5	4	5
5	6	6	6
6	7	7	6
5	6	6	6
6	7	6	6
5	5	5	5
5	6	7	7
5	7	7	7
2	6	5	6
5	5	6	5
5	6	6	6
6	7	5	6
1	3	1	1
4	6	6	6
5	5	5	6
7	7	7	7
6	6	6	6
2	2	5	5
2	5	5	5
6	6	3	5
7	7	7	7
3	7	4	5
6	6	6	6
5	5	5	6
5	6	5	5
6	7	7	6
5	7	6	6
6	6	7	7
6	6	6	7
5	6	6	6
6	6	6	6
6	6	6	6
7	5	7	7
4	6	7	6
4	6	4	6
5	3	4	4
6	6	6	6
5	5	5	5
6	6	6	5
5	6	6	6
5	6	2	5
6	5	5	5
7	7	4	7
5	6	6	6
6	7	6	7
6	7	7	6
7	6	5	6
4	6	7	6
5	6	4	6
6	5	6	6
5	5	5	5
5	6	6	6
5	6	7	6
6	7	5	5
4	4	4	4
5	5	4	4
7	7	7	7
6	7	7	6
3	6	6	6
2	6	6	6
4	6	6	5
5	7	7	7
1	7	1	6
2	6	6	2
5	5	6	5
6	6	7	6
5	6	5	6
4	4	6	5
6	6	6	6
6	7	5	6
6	5	6	6
6	6	5	5
7	7	6	7
6	6	5	5
6	6	6	6
6	6	7	7
6	7	6	7
7	7	7	7
5	5	5	5
5	6	6	6
6	6	6	6
2	7	7	7
6	7	6	7
5	5	5	5
5	7	4	4
3	3	3	3
5	6	5	5
7	7	7	7
6	5	7	6
6	6	6	6
6	6	6	6
6	6	5	5
5	7	7	7
6	6	5	6
5	2	1	2
7	6	7	7
4	6	7	7
6	7	7	6
4	5	5	4
5	6	5	6
6	6	6	6
3	5	3	5
6	6	5	6
5	7	4	5
7	7	7	7
5	5	5	4
4	6	4	4
6	7	7	7
4	3	6	4
4	6	6	4
6	6	6	6
6	6	5	7
7	4	4	5
5	7	6	6
6	7	6	6
5	7	7	6
6	7	6	7
6	6	6	7
6	6	7	7
1	3	6	4
5	5	4	5
5	6	6	6
6	7	6	6
6	6	5	6
5	5	4	5
4	7	6	6
4	7	6	7
5	6	5	5
5	7	4	5
6	7	5	6
5	6	6	6
5	6	5	6
5	5	6	5
6	6	5	6
5	7	6	7
5	4	4	4
6	7	7	7
7	7	7	7
6	6	6	6
6	7	7	7
4	6	5	7
5	6	6	6
5	7	5	7
5	6	7	6
6	7	7	6
3	6	6	6
6	6	6	5
5	5	4	4
5	7	7	6
4	6	7	7
6	7	7	7
5	5	5	5
6	7	6	6
5	6	6	6
4	7	7	7
5	6	7	6
4	7	5	7
5	5	4	5
4	7	7	7
7	7	7	7
6	7	7	6
5	7	6	6
6	6	7	6
7	7	7	7
6	5	6	6
3	4	4	4
3	5	5	5
6	6	6	6
6	7	7	7
6	7	6	6
7	5	6	6
6	7	7	6
2	6	5	6
5	7	4	7
5	6	4	6
4	6	6	6
6	7	4	6
5	6	6	6
5	6	4	5
4	6	5	5
5	7	6	7
7	7	7	7
5	5	4	5
2	7	6	6
5	5	6	5
6	6	6	7
5	5	4	4
5	6	5	6
5	6	5	5
5	6	5	5
7	6	6	6
4	6	5	5
3	6	6	7
6	7	7	7
4	7	6	6
6	7	6	6
7	7	7	7
6	7	6	6
6	6	6	6
7	6	7	7
4	5	5	5
6	6	5	7
5	7	5	5
6	5	6	6
5	5	6	5
4	6	5	6
5	5	5	5
7	7	6	6
7	7	7	7
5	5	6	7
3	5	5	6
5	6	7	5
4	5	4	5
5	4	6	6
7	7	7	7
4	6	6	6
7	7	7	7
5	6	4	5
3	7	6	7
5	7	7	6
5	5	2	4
6	7	6	4
4	5	5	4
4	6	6	6
5	6	5	5
4	5	5	5
2	6	6	6
6	7	7	7
6	7	7	7
6	6	3	5
7	7	6	6
6	7	6	6
5	6	6	6
4	7	7	6
6	7	7	7
7	7	7	7
6	6	7	7
6	7	7	7
6	6	5	6
7	7	7	7
6	6	5	5
5	6	6	6
6	7	7	7
4	6	5	3
6	5	6	5
5	6	6	6
5	6	7	7
2	4	4	4
3	5	7	6
6	7	7	6
7	7	7	7
5	6	5	6
6	6	6	6
7	7	7	7
6	6	6	6
5	7	7	7
3	6	3	6
4	5	5	5
5	7	7	7
5	7	7	7
4	4	2	2
6	6	6	6
7	7	6	6
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
4	6	7	6
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'Gwilym Jenkins' @ jenkins.wessa.net

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 2 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265233&T=0

[TABLE]
[ROW][C]Summary of computational transaction[/C][/ROW]
[ROW][C]Raw Input[/C][C]view raw input (R code) [/C][/ROW]
[ROW][C]Raw Output[/C][C]view raw output of R engine [/C][/ROW]
[ROW][C]Computing time[/C][C]2 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Gwilym Jenkins' @ jenkins.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265233&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265233&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	2 seconds
R Server	'Gwilym Jenkins' @ jenkins.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7752	0.7903	0.7654	0.4852
3 excluded	0.8159	0.8198	0.7686	0.6027
8 excluded	0.6928	0.7077	0.6534	0.4466
15 excluded	0.7191	0.7405	0.685	0.4875
22 excluded	0.6544	0.6702	0.5852	0.4038

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7752 & 0.7903 & 0.7654 & 0.4852 \tabularnewline
3 excluded & 0.8159 & 0.8198 & 0.7686 & 0.6027 \tabularnewline
8 excluded & 0.6928 & 0.7077 & 0.6534 & 0.4466 \tabularnewline
15 excluded & 0.7191 & 0.7405 & 0.685 & 0.4875 \tabularnewline
22 excluded & 0.6544 & 0.6702 & 0.5852 & 0.4038 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265233&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]0.7752[/C][C]0.7903[/C][C]0.7654[/C][C]0.4852[/C][/ROW]
[ROW][C]3 excluded[/C][C]0.8159[/C][C]0.8198[/C][C]0.7686[/C][C]0.6027[/C][/ROW]
[ROW][C]8 excluded[/C][C]0.6928[/C][C]0.7077[/C][C]0.6534[/C][C]0.4466[/C][/ROW]
[ROW][C]15 excluded[/C][C]0.7191[/C][C]0.7405[/C][C]0.685[/C][C]0.4875[/C][/ROW]
[ROW][C]22 excluded[/C][C]0.6544[/C][C]0.6702[/C][C]0.5852[/C][C]0.4038[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265233&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265233&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	0.7752	0.7903	0.7654	0.4852
3 excluded	0.8159	0.8198	0.7686	0.6027
8 excluded	0.6928	0.7077	0.6534	0.4466
15 excluded	0.7191	0.7405	0.685	0.4875
22 excluded	0.6544	0.6702	0.5852	0.4038

Parameters (Session):

par1 = grey ;

Parameters (R input):

par1 = grey ;

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