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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 14:06:06 +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/t1418220388506l3dfzgt4f1ha.htm/, Retrieved Sun, 19 May 2024 14:59:04 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=265222, Retrieved Sun, 19 May 2024 14:59:04 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

120

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 14:06:06] [706bcb1d0c5210dc074174906fafd7a3] [Current]

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Dataseries X:

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Histogram

Boxplots

5	5	6	6
7	7	4	6
3	6	5	5
6	6	6	7
6	7	7	6
4	4	4	6
6	6	6	6
7	7	7	7
6	6	5	6
3	4	6	6
6	5	4	4
7	7	6	7
6	6	6	6
7	7	7	5
5	4	7	5
7	7	4	7
7	7	7	7
4	5	4	6
6	4	5	5
6	6	7	7
7	7	7	6
6	6	5	6
4	5	4	5
6	7	6	4
6	5	5	5
6	6	5	6
4	6	6	6
5	4	6	6
3	4	3	4
6	6	6	6
6	7	6	7
6	6	6	6
7	6	6	7
7	6	3	6
6	5	4	5
5	5	4	6
5	5	5	5
3	5	4	6
6	3	3	6
7	6	6	6
7	7	7	7
7	6	6	4
5	5	5	5
6	4	5	7
7	7	6	7
5	6	6	7
6	7	5	5
4	5	6	5
6	5	5	6
5	7	5	4
6	6	6	6
7	7	5	7
7	6	5	6
4	5	4	5
4	4	5	4
6	6	5	6
6	6	4	5
5	4	6	6
6	7	6	5
5	6	6	5
6	5	6	7
6	7	5	6
6	6	6	6
5	6	6	6
5	5	6	5
4	7	7	6
4	5	5	5
2	6	5	6
6	6	5	6
7	6	6	6
6	6	6	6
6	6	4	5
3	4	6	5
6	6	6	5
4	6	5	5
6	6	5	6
6	6	5	6
6	6	5	6
6	6	5	6
7	7	7	6
6	3	5	5
6	7	6	6
6	7	6	6
6	4	6	5
7	7	5	6
4	6	3	4
4	6	6	6
6	5	6	6
6	7	7	7
7	6	7	7
1	1	2	1
6	4	4	5
6	7	6	5
6	6	6	5
7	7	7	7
7	7	7	4
7	7	7	6
3	2	6	5
6	6	5	6
7	7	5	6
7	6	6	7
6	6	6	6
3	6	7	7
6	6	6	6
7	7	6	7
6	7	6	6
4	5	4	6
5	4	3	7
2	3	5	4
7	7	4	6
5	5	5	5
5	6	5	5
7	7	7	7
7	7	6	6
5	5	5	4
7	6	5	5
6	7	4	6
5	5	6	5
6	7	6	7
6	7	5	7
6	6	7	6
6	6	6	6
5	6	6	6
6	5	5	6
7	7	6	7
7	6	6	7
5	6	6	6
6	6	5	5
7	6	6	7
7	5	3	7
4	3	3	7
6	7	6	6
5	5	5	7
7	7	7	7
6	5	5	6
4	5	6	6
6	5	5	5
5	7	6	6
7	7	5	7
7	6	6	7
6	6	6	6
7	7	6	7
6	5	5	6
7	6	5	5
6	5	5	6
5	7	6	5
5	2	2	6
5	6	5	4
5	5	6	6
6	7	5	7
7	7	6	7
7	5	6	6
6	4	5	6
4	4	6	3
7	7	6	6
5	5	5	5
5	6	6	5
7	6	6	5
6	6	5	6
6	6	5	5
7	7	7	7
6	5	5	5
6	6	6	6
7	7	7	7
4	7	7	7
6	6	6	6
6	6	6	6
4	6	5	6
4	6	4	6
7	7	6	6
6	5	3	2
7	5	6	5
4	4	4	4
6	6	6	7
7	5	1	2
6	7	6	6
6	5	5	6
2	7	5	5
5	6	6	5
6	6	6	6
1	1	1	7
7	5	6	6
6	6	6	5
7	6	5	4
5	6	6	5
6	6	7	7
6	6	6	6
6	5	5	7
7	6	6	7
7	7	7	6
7	7	7	7
5	5	5	6
6	6	6	5
7	6	6	6
5	6	5	7
6	6	5	5
6	6	5	6
5	5	6	6
7	7	6	7
7	7	7	3
7	5	6	6
7	6	5	2
4	5	4	6
6	7	5	5
6	5	4	6
7	6	7	7
7	1	5	6
6	6	6	7
6	6	6	7
7	5	6	6
7	7	5	7
5	5	4	7
5	6	5	6
6	7	6	7
6	6	6	2
5	4	6	6
5	6	5	5
7	7	7	7
6	6	6	6
2	5	6	6
6	6	5	6
7	7	4	7
7	7	6	7
4	5	5	4
7	7	6	6
4	6	2	2
6	6	6	7
5	5	6	7
6	6	6	6
5	6	4	5
5	5	5	4
7	7	6	5
5	5	4	5
6	6	6	5
6	5	5	7
5	4	2	6
5	6	7	6
6	6	4	6
5	5	5	5
7	6	5	5
5	6	5	6
4	5	5	6
5	6	5	7
6	6	5	5
5	7	6	3
6	5	5	6
7	7	7	5
7	7	3	7
7	7	7	7
7	4	6	7
7	6	6	7
5	5	5	5
7	6	6	7
5	6	5	5
6	7	6	7
6	6	5	5
6	6	4	5
6	6	7	6
6	7	5	7
6	6	6	5
7	7	6	7
4	6	6	7
7	7	7	7
6	6	6	6
4	7	5	5
6	5	6	6
5	5	6	5
7	6	6	5
7	7	7	7
2	5	2	2
6	7	6	6
6	7	7	5
7	7	7	7
7	7	7	7
2	5	6	6
7	7	7	4
6	7	6	6
7	7	5	6
7	7	7	7
7	6	6	7
7	7	6	7
6	6	6	6
3	3	6	6
6	5	5	5
5	6	6	6
7	4	6	7
6	7	7	6
7	6	6	6
5	7	5	6
6	6	6	6
5	6	4	5
7	7	5	7
7	7	6	7
6	7	3	5
7	6	3	5
6	4	4	5
7	7	4	7
5	6	6	6
6	7	6	6
7	7	6	6
4	5	5	4
7	7	7	6
6	7	4	6
5	5	4	6
6	5	5	6
5	6	5	6
7	5	7	4
4	4	5	5
7	6	6	6
6	5	5	5
6	4	6	5
7	7	7	7
2	7	4	6
5	7	4	5
5	5	6	7
6	4	6	6
7	6	7	7
6	5	6	6
7	7	6	7
4	7	5	7
6	6	5	4
5	6	5	6
7	6	7	6
5	6	6	6
7	7	6	6
7	7	7	7
7	7	7	7
7	6	6	7
6	6	6	6
4	7	6	6
7	7	7	7
5	6	5	5
7	7	7	7
6	6	4	5
7	7	7	7
5	6	7	6
7	6	6	5
7	7	7	7
6	5	5	5
7	7	6	6
6	6	6	4
6	6	7	6
7	5	3	5
5	5	5	4
6	6	5	6
7	5	7	7
7	7	7	7
6	6	6	6
6	7	6	6
6	6	6	6
6	6	6	7
7	7	6	7
7	7	7	7
7	5	5	6
6	6	2	5
7	7	6	7
2	5	3	5
7	7	6	7
6	5	5	5
6	7	7	6
6	7	6	6
6	7	7	6
5	6	6	7
6	6	6	7
7	7	6	7
4	4	3	3
6	6	6	6
7	6	6	6
7	4	6	6
7	6	5	6
6	6	5	5
4	7	1	4
7	7	6	6
7	6	6	7
4	4	6	5
5	5	4	5
7	7	7	7
7	6	5	6
5	4	4	7
5	6	6	4
7	7	6	6
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
NA	NA	NA	NA
6	6	6	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	1 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 & 1 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265222&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]1 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=265222&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265222&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	'Gwilym Jenkins' @ jenkins.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.708	0.7076	0.6515	0.3769
3 excluded	0.6277	0.6266	0.5331	0.3587
10 excluded	0.6316	0.6332	0.5356	0.3652
17 excluded	0.6355	0.6337	0.5457	0.3658
24 excluded	0.6815	0.6829	0.5921	0.4179

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.708 & 0.7076 & 0.6515 & 0.3769 \tabularnewline
3 excluded & 0.6277 & 0.6266 & 0.5331 & 0.3587 \tabularnewline
10 excluded & 0.6316 & 0.6332 & 0.5356 & 0.3652 \tabularnewline
17 excluded & 0.6355 & 0.6337 & 0.5457 & 0.3658 \tabularnewline
24 excluded & 0.6815 & 0.6829 & 0.5921 & 0.4179 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265222&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]0.708[/C][C]0.7076[/C][C]0.6515[/C][C]0.3769[/C][/ROW]
[ROW][C]3 excluded[/C][C]0.6277[/C][C]0.6266[/C][C]0.5331[/C][C]0.3587[/C][/ROW]
[ROW][C]10 excluded[/C][C]0.6316[/C][C]0.6332[/C][C]0.5356[/C][C]0.3652[/C][/ROW]
[ROW][C]17 excluded[/C][C]0.6355[/C][C]0.6337[/C][C]0.5457[/C][C]0.3658[/C][/ROW]
[ROW][C]24 excluded[/C][C]0.6815[/C][C]0.6829[/C][C]0.5921[/C][C]0.4179[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265222&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265222&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	0.708	0.7076	0.6515	0.3769
3 excluded	0.6277	0.6266	0.5331	0.3587
10 excluded	0.6316	0.6332	0.5356	0.3652
17 excluded	0.6355	0.6337	0.5457	0.3658
24 excluded	0.6815	0.6829	0.5921	0.4179

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

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Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code