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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

Mon, 15 Dec 2014 18:32:19 +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/15/t14186683456xb2ezs20gq0w34.htm/, Retrieved Fri, 17 May 2024 09:21:05 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=268866, Retrieved Fri, 17 May 2024 09:21:05 +0000

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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)

-     [Survey Scores] [Intrinsic Motivat...] [2010-10-12 11:18:40] [b98453cac15ba1066b407e146608df68]
- R PD  [Survey Scores] [] [2011-10-18 12:18:26] [b98453cac15ba1066b407e146608df68]
- RMPD    [Survey Scores] [Kendall Tau Corre...] [2014-12-13 22:49:47] [cac6c5fb035463be46c296b46e439cb5]
- RMP         [Cronbach Alpha] [] [2014-12-15 18:32:19] [6b98cd673f8ceafd4bac153bb0cb23e9] [Current]

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Dataseries X:

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Histogram

Boxplots

5	5	5	6	5	2
4	7	5	5	6	5
4	5	4	5	6	2
5	6	7	6	5	6
5	5	4	5	5	2
5	7	5	5	7	5
6	7	6	6	7	5
4	3	5	6	5	2
7	7	7	7	7	7
1	6	4	1	5	1
5	5	6	6	5	5
4	7	7	5	6	4
6	5	7	7	7	6
5	7	7	6	7	6
5	7	5	6	7	6
6	6	6	6	6	6
5	6	6	6	6	5
5	7	6	6	7	4
5	4	5	6	6	4
7	7	7	7	7	7
7	7	6	7	7	2
5	6	7	7	5	4
7	6	6	7	6	5
6	7	6	6	6	4
4	6	6	6	6	6
5	5	5	7	5	6
6	7	6	6	4	4
5	6	6	5	5	3
5	4	6	7	6	6
7	7	7	6	6	6
5	6	7	6	6	4
3	6	6	6	5	3
5	7	6	7	7	4
6	7	6	7	6	1
6	6	7	6	5	5
2	6	6	7	7	2
6	7	7	7	7	5
5	5	6	5	6	6
4	4	6	5	7	3
5	5	7	7	7	7
5	5	5	4	5	1
5	3	5	5	6	2
6	7	5	5	7	4
6	6	7	6	7	6
6	5	4	6	7	4
4	4	7	6	6	3
3	5	6	7	5	3
5	7	7	6	7	2
6	5	6	6	6	7
6	5	7	6	5	5
5	6	7	6	6	6
4	6	5	6	4	5
6	6	1	6	6	2
6	7	6	7	7	2
4	5	5	7	6	5
6	4	6	7	5	6
6	6	6	7	6	6
5	6	5	5	5	5
5	7	7	6	5	1
5	6	6	5	6	3
2	4	7	7	5	6
3	6	5	7	7	7
5	5	7	7	6	5
6	5	7	6	5	2
6	5	5	6	5	3
7	6	5	5	6	4
5	7	7	7	7	5
4	6	6	4	5	3
5	6	6	4	7	2
4	6	6	6	7	3
3	6	5	6	5	4
3	6	6	6	7	5
3	5	5	5	6	6
3	5	5	4	6	3
6	7	7	7	7	5
5	6	4	7	6	3
6	5	5	6	5	3
4	6	7	5	6	5
4	7	6	5	6	4
6	7	5	6	5	6
7	6	6	7	6	4
7	6	7	7	6	5
6	7	6	6	6	5
7	6	5	6	7	5
5	3	5	5	3	5
4	5	6	6	6	5
5	7	5	5	6	3
7	6	7	7	7	6
6	6	6	5	6	6
7	7	7	7	6	5
5	6	5	5	6	5
6	6	6	6	7	5
5	6	6	5	7	4
5	4	6	6	6	5
5	6	6	6	6	3
5	6	6	6	6	6
5	6	6	5	5	6
5	7	5	6	7	5
5	7	5	6	6	4
7	7	7	7	4	4
5	7	6	6	6	5
6	7	6	6	7	6
6	7	4	7	7	1
6	7	5	7	7	1
6	5	7	5	5	5
2	4	5	7	7	2
5	5	3	5	5	3
7	7	5	7	6	6
5	6	4	7	6	5
5	3	6	5	7	1
6	6	6	6	6	5
4	6	6	6	6	6
3	5	4	4	5	2
7	7	1	7	7	2
4	3	6	6	6	5
5	6	6	6	6	5
6	6	3	4	7	2
6	4	3	5	4	5
6	6	4	5	6	1
4	7	6	5	7	2
5	6	7	6	6	5
6	3	7	7	4	4
5	6	4	5	5	3
5	7	6	7	7	6
6	6	4	6	6	4
1	7	7	7	7	4
7	5	3	7	4	2
7	7	6	7	7	1
5	7	7	6	7	4
3	4	6	6	5	6
4	6	6	5	4	5
5	6	6	5	6	5
5	7	7	7	7	2
6	6	6	4	6	5
7	4	3	7	5	4
5	6	6	5	7	6
6	6	5	5	5	3
5	6	6	6	6	6
6	4	6	7	6	6
2	5	5	4	4	2
4	3	5	5	4	3
5	6	4	7	6	5
3	6	7	5	7	6
6	6	7	7	6	6
5	7	6	6	6	6
4	6	5	4	5	2
1	5	7	5	5	1
4	3	5	5	5	6
4	6	6	6	3	5
5	7	3	6	6	2
7	7	7	7	7	4
2	7	6	6	6	3
3	5	7	7	5	4
4	6	4	7	4	4
7	7	2	7	7	2
5	5	6	5	6	2
4	6	5	4	7	4
6	4	6	7	5	6
5	6	4	5	5	2
6	5	6	6	7	3
6	6	5	5	6	3
6	7	5	7	7	4
5	7	5	6	6	1
2	4	6	5	5	6
3	4	7	3	4	2
5	6	6	6	6	6
7	6	5	7	6	6
6	5	7	6	4	6
5	6	3	6	7	4
6	5	6	6	6	4
6	6	7	7	5	5
5	6	5	6	7	3
4	6	6	6	6	5
2	5	6	5	6	3
3	5	6	5	5	4
6	4	5	7	7	6
4	4	5	4	5	4
6	2	6	7	6	5
6	6	6	7	6	3
6	7	7	5	6	5
7	6	5	4	6	2
4	6	6	5	6	2
7	3	6	7	4	7
7	6	6	7	6	5
4	4	6	5	6	5
5	6	7	6	6	3
5	6	7	6	6	4
5	6	7	7	6	3
5	6	7	6	6	3
5	7	5	7	7	5
6	6	5	6	3	5
6	6	7	6	7	6
7	6	2	6	7	3
4	6	6	6	4	6
7	7	4	6	7	1
5	4	4	6	6	1
5	4	7	6	6	6
1	6	6	5	5	4
5	6	3	7	7	3
5	7	6	5	6	5
2	1	1	2	1	3
4	6	5	4	4	4
4	6	6	7	7	6
6	6	6	7	6	5
7	7	6	7	7	6
4	7	7	7	7	2
7	7	7	6	7	2
2	3	5	3	2	5
4	7	7	6	7	6
7	7	7	7	6	5
7	6	6	6	6	3
5	3	6	6	6	5
5	6	7	6	6	6
7	7	7	7	7	7
5	6	6	7	7	7
6	4	3	6	5	2
5	5	3	6	4	5
3	7	7	7	7	6
5	5	5	7	5	5
3	5	7	6	6	5
5	7	7	7	7	6
6	7	6	7	7	6
5	5	5	5	5	6
5	7	7	5	6	7
4	6	6	7	7	5
4	5	6	6	5	6
4	6	5	5	7	4
5	6	6	6	7	5
6	6	6	7	6	6
5	6	6	6	6	3
6	5	6	7	6	3
5	6	6	5	5	4
5	7	7	6	7	7
5	7	5	7	6	6
2	5	6	6	6	7
5	6	5	5	6	5
5	7	7	6	6	6
6	7	7	7	5	7
1	4	2	3	3	2
4	6	6	6	7	6
5	5	5	5	5	7
7	7	7	7	7	7
6	6	4	6	5	5
2	4	7	2	5	4
6	5	3	6	7	1
7	7	6	7	7	4
3	7	3	7	6	3
6	6	4	6	6	4
5	7	6	5	7	3
5	6	7	6	5	5
6	7	7	7	6	6
5	6	6	7	5	6
6	5	5	6	7	3
6	5	5	6	2	4
5	5	5	6	6	6
6	5	6	6	5	4
6	6	6	6	7	6
7	7	7	5	7	7
4	7	6	6	5	5
4	6	5	6	4	3
5	4	5	3	4	3
6	7	6	6	7	6
5	5	3	5	5	2
6	5	5	6	6	5
5	7	4	6	6	4
5	6	5	6	6	3
6	6	3	5	6	3
7	7	7	7	7	7
5	6	7	6	5	4
6	6	6	7	6	4
6	7	5	7	7	5
7	4	7	6	7	7
4	6	6	6	6	6
5	6	7	6	6	4
6	4	6	5	6	5
5	4	4	5	6	4
5	7	6	6	7	6
5	6	6	6	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	'Gertrude Mary Cox' @ cox.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 & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268866&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]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268866&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268866&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	'Gertrude Mary Cox' @ cox.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.6288	0.6533	0.6552	0.239
Q1 excluded	0.6043	0.6274	0.6138	0.2519
Q3 excluded	0.5821	0.604	0.5919	0.2337
Q7 excluded	0.5923	0.6328	0.6124	0.2563
Q8 excluded	0.5394	0.5617	0.5588	0.204
Q10 excluded	0.5711	0.5899	0.5778	0.2234
Q14 excluded	0.6267	0.6429	0.6206	0.2648

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.6288 & 0.6533 & 0.6552 & 0.239 \tabularnewline
Q1 excluded & 0.6043 & 0.6274 & 0.6138 & 0.2519 \tabularnewline
Q3 excluded & 0.5821 & 0.604 & 0.5919 & 0.2337 \tabularnewline
Q7 excluded & 0.5923 & 0.6328 & 0.6124 & 0.2563 \tabularnewline
Q8 excluded & 0.5394 & 0.5617 & 0.5588 & 0.204 \tabularnewline
Q10 excluded & 0.5711 & 0.5899 & 0.5778 & 0.2234 \tabularnewline
Q14 excluded & 0.6267 & 0.6429 & 0.6206 & 0.2648 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268866&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]0.6288[/C][C]0.6533[/C][C]0.6552[/C][C]0.239[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.6043[/C][C]0.6274[/C][C]0.6138[/C][C]0.2519[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.5821[/C][C]0.604[/C][C]0.5919[/C][C]0.2337[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.5923[/C][C]0.6328[/C][C]0.6124[/C][C]0.2563[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.5394[/C][C]0.5617[/C][C]0.5588[/C][C]0.204[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.5711[/C][C]0.5899[/C][C]0.5778[/C][C]0.2234[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.6267[/C][C]0.6429[/C][C]0.6206[/C][C]0.2648[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268866&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268866&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	0.6288	0.6533	0.6552	0.239
Q1 excluded	0.6043	0.6274	0.6138	0.2519
Q3 excluded	0.5821	0.604	0.5919	0.2337
Q7 excluded	0.5923	0.6328	0.6124	0.2563
Q8 excluded	0.5394	0.5617	0.5588	0.204
Q10 excluded	0.5711	0.5899	0.5778	0.2234
Q14 excluded	0.6267	0.6429	0.6206	0.2648

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')

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Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code