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Author's title

Author

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R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Mon, 15 Dec 2014 18:30:42 +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/t1418668250cpphquq0xj059ba.htm/, Retrieved Thu, 16 May 2024 12:16:46 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=268865, Retrieved Thu, 16 May 2024 12:16:46 +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 22:29:44] [cac6c5fb035463be46c296b46e439cb5]
- RMP         [Cronbach Alpha] [] [2014-12-15 18:30:42] [6b98cd673f8ceafd4bac153bb0cb23e9] [Current]

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Dataseries X:

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Histogram

Boxplots

4	2	2	2	2	2
4	5	4	5	5	4
3	1	3	3	2	3
6	5	7	6	4	6
4	3	3	4	3	4
4	4	5	4	4	5
5	5	5	5	4	5
5	3	4	3	2	4
7	7	7	7	7	7
7	6	5	6	6	5
3	5	3	4	3	5
7	4	6	7	6	5
2	3	2	3	5	5
5	3	5	5	3	5
6	2	5	5	5	6
5	5	4	5	5	5
4	3	4	3	3	4
6	4	5	5	4	5
5	3	5	5	4	4
7	7	6	6	4	7
7	6	6	5	3	6
7	5	5	7	4	5
6	4	5	6	5	4
5	4	3	4	3	5
5	5	6	6	4	6
4	4	5	5	4	5
5	6	4	6	6	5
5	5	4	5	3	5
6	6	4	5	5	6
6	4	4	5	2	5
2	1	3	2	3	5
6	4	5	5	4	5
3	5	4	5	5	5
6	4	2	6	1	1
4	4	3	5	4	5
3	2	5	5	3	5
7	2	5	6	4	6
5	4	5	5	4	4
5	4	5	5	5	5
4	2	4	4	3	3
4	2	4	4	3	3
6	2	3	3	3	4
5	2	4	5	3	4
5	2	2	2	4	2
4	2	2	2	2	3
7	4	5	5	6	5
4	4	5	5	2	5
6	5	5	5	4	6
6	4	4	6	5	6
4	2	6	4	2	5
5	3	5	3	4	5
5	3	2	4	4	4
4	4	4	4	2	2
5	5	6	6	5	6
6	3	5	6	4	5
5	2	5	6	4	5
5	2	2	3	2	6
4	4	3	5	4	6
6	3	3	4	3	5
5	3	5	5	2	5
6	2	7	5	4	6
4	2	4	5	5	3
3	5	2	3	2	3
5	4	2	4	2	4
5	4	4	5	4	5
5	3	4	5	3	4
4	6	5	6	5	5
5	5	4	4	2	4
5	2	4	4	2	5
5	4	3	4	1	3
5	5	4	5	4	3
5	3	3	6	4	2
6	4	6	5	4	5
6	5	6	5	6	5
5	2	2	1	1	2
2	2	2	3	3	4
4	2	4	4	1	3
6	3	7	7	4	6
4	2	3	3	2	3
4	6	4	5	3	4
5	4	4	5	3	4
5	4	4	5	3	4
4	1	6	4	3	5
4	5	3	5	5	4
3	2	5	4	1	4
5	4	5	5	4	5
6	3	4	6	5	5
5	4	6	5	4	7
4	3	4	5	4	5
5	4	4	5	3	4
4	5	4	4	3	4
4	2	3	2	2	3
4	3	4	7	6	5
2	2	2	2	1	5
4	7	4	5	2	5
4	6	5	6	5	6
5	4	4	5	5	5
7	3	4	5	4	5
4	2	4	3	3	4
6	4	6	6	5	6
5	5	4	5	4	5
4	5	5	5	5	7
2	1	1	5	1	2
6	3	4	6	5	4
4	2	5	4	2	6
4	4	5	4	2	4
7	4	2	7	7	4
6	6	3	5	2	5
5	6	5	6	6	4
5	3	5	6	4	6
6	5	5	5	4	6
6	5	1	6	5	6
4	4	4	5	3	5
1	1	2	1	1	2
5	3	3	3	2	5
4	4	5	4	4	5
7	3	3	5	4	4
5	6	4	6	2	6
6	4	5	5	3	4
6	6	6	5	4	6
5	4	5	5	5	6
5	4	5	5	3	4
4	4	5	4	3	3
6	5	6	6	5	6
4	4	5	4	4	5
5	5	5	5	3	5
4	2	2	4	3	4
4	4	4	4	4	7
6	5	7	6	5	7
4	3	4	4	4	5
6	6	2	2	2	4
5	5	5	6	4	5
6	2	6	4	4	5
5	5	6	5	4	6
4	2	2	4	2	2
6	7	5	5	5	6
3	3	3	4	3	4
5	4	4	5	2	6
5	4	5	5	4	5
6	4	6	7	2	6
2	3	3	3	2	2
5	3	2	5	2	6
6	4	6	6	6	6
5	3	7	4	2	7
6	5	5	5	2	5
5	4	3	4	2	4
5	3	7	7	5	7
4	1	5	5	2	5
5	5	5	4	3	5
6	3	4	4	4	3
6	3	6	5	3	7
5	2	4	5	5	6
4	4	6	5	4	5
3	1	3	4	2	3
6	5	5	6	6	5
7	5	4	7	6	6
7	7	7	6	4	7
6	2	4	5	5	6
6	4	5	6	5	5
6	2	1	3	2	4
4	2	4	4	3	3
6	5	4	5	5	5
5	3	2	5	2	2
6	5	5	5	4	6
4	3	6	5	2	7
3	6	3	4	5	6
5	4	4	6	2	5
5	4	6	5	2	5
7	4	4	6	6	6
4	3	5	5	6	6
7	7	7	7	6	7
5	4	4	5	3	5
5	4	4	4	4	5
5	3	5	6	3	5
5	3	5	6	4	5
5	5	4	5	3	5
5	2	3	4	3	4
4	1	1	1	2	2
4	3	4	5	4	5
6	5	4	5	3	4
5	3	4	5	3	5
4	2	5	5	3	4
6	1	5	4	2	6
5	4	5	5	4	5
3	4	2	3	1	3
4	5	4	7	4	6
4	5	6	7	4	6
4	5	6	6	4	6
4	5	6	7	4	6
5	3	4	6	4	6
4	3	3	5	4	4
3	3	6	6	6	6
6	3	3	7	6	3
5	6	6	5	4	6
7	3	1	4	3	4
5	4	5	4	4	3
5	5	3	5	2	5
4	4	4	4	4	4
5	2	4	3	3	2
6	5	5	6	5	5
2	6	4	2	7	5
6	5	5	6	5	6
6	5	5	6	4	4
4	3	5	3	2	5
4	5	3	4	4	5
6	5	2	7	3	1
5	3	5	6	2	3
5	1	2	5	2	4
5	4	3	4	3	4
4	4	3	5	2	5
5	3	5	6	4	5
6	3	6	6	3	6
5	5	4	6	5	4
5	4	5	5	2	7
5	2	4	6	3	5
3	2	3	5	4	4
5	2	3	2	3	2
6	2	6	5	5	5
4	2	3	6	4	3
4	3	5	3	3	6
5	4	5	5	4	5
5	5	5	5	6	5
6	4	4	1	2	5
5	3	4	5	2	4
4	4	5	4	4	5
4	3	4	5	2	4
5	4	4	4	4	5
5	5	5	6	5	5
5	4	5	6	4	6
4	3	4	5	3	6
7	5	6	6	3	6
6	4	4	7	4	3
7	4	5	6	5	6
5	4	3	5	3	5
5	2	5	6	2	6
5	5	5	6	4	5
6	5	5	5	4	5
7	6	6	7	4	7
3	4	2	3	1	7
5	6	3	5	6	6
7	6	7	7	4	7
5	4	2	5	3	6
4	5	4	6	3	6
4	3	5	4	3	6
5	2	3	4	2	6
5	4	6	5	4	6
4	5	4	3	3	3
3	3	2	5	2	3
7	5	5	4	5	6
6	3	7	5	4	6
5	5	6	5	3	5
5	1	6	5	2	6
4	5	3	5	3	5
1	3	2	1	1	3
3	2	4	3	2	5
5	5	6	5	3	4
4	4	4	4	5	5
3	6	6	7	4	7
6	3	3	3	2	6
4	3	2	4	3	4
5	4	3	5	5	5
5	4	3	4	4	4
5	6	4	3	3	3
6	5	4	6	5	5
5	5	2	5	4	5
5	3	6	4	4	5
5	4	2	5	3	3
7	7	6	6	7	1
5	4	6	6	4	6
6	5	5	5	4	5
5	4	5	5	5	5
5	2	3	3	1	7
5	3	4	5	4	5
6	5	4	6	4	5
6	5	5	5	4	5
4	3	3	4	4	5
5	4	5	5	4	5
3	2	3	4	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	'Sir Ronald Aylmer Fisher' @ fisher.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 & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268865&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]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268865&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268865&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	'Sir Ronald Aylmer Fisher' @ fisher.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7878	0.7888	0.7715	0.3837
Q2 excluded	0.7663	0.7678	0.7421	0.3981
Q4 excluded	0.7696	0.7695	0.7447	0.4004
Q6 excluded	0.7465	0.7475	0.7119	0.3719
Q9 excluded	0.729	0.7291	0.6984	0.35
Q11 excluded	0.7557	0.7572	0.7303	0.3842
Q13 excluded	0.7649	0.7675	0.7327	0.3976

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7878 & 0.7888 & 0.7715 & 0.3837 \tabularnewline
Q2 excluded & 0.7663 & 0.7678 & 0.7421 & 0.3981 \tabularnewline
Q4 excluded & 0.7696 & 0.7695 & 0.7447 & 0.4004 \tabularnewline
Q6 excluded & 0.7465 & 0.7475 & 0.7119 & 0.3719 \tabularnewline
Q9 excluded & 0.729 & 0.7291 & 0.6984 & 0.35 \tabularnewline
Q11 excluded & 0.7557 & 0.7572 & 0.7303 & 0.3842 \tabularnewline
Q13 excluded & 0.7649 & 0.7675 & 0.7327 & 0.3976 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268865&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]0.7878[/C][C]0.7888[/C][C]0.7715[/C][C]0.3837[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.7663[/C][C]0.7678[/C][C]0.7421[/C][C]0.3981[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.7696[/C][C]0.7695[/C][C]0.7447[/C][C]0.4004[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.7465[/C][C]0.7475[/C][C]0.7119[/C][C]0.3719[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]0.729[/C][C]0.7291[/C][C]0.6984[/C][C]0.35[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.7557[/C][C]0.7572[/C][C]0.7303[/C][C]0.3842[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.7649[/C][C]0.7675[/C][C]0.7327[/C][C]0.3976[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268865&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268865&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	0.7878	0.7888	0.7715	0.3837
Q2 excluded	0.7663	0.7678	0.7421	0.3981
Q4 excluded	0.7696	0.7695	0.7447	0.4004
Q6 excluded	0.7465	0.7475	0.7119	0.3719
Q9 excluded	0.729	0.7291	0.6984	0.35
Q11 excluded	0.7557	0.7572	0.7303	0.3842
Q13 excluded	0.7649	0.7675	0.7327	0.3976

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