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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

Tue, 14 Oct 2014 11:23:49 +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/2014/Oct/14/t14132822963iw2t2w2hclorck.htm/, Retrieved Sun, 12 May 2024 20:11:45 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=240909, Retrieved Sun, 12 May 2024 20:11:45 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

101

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

-     [Cronbach Alpha] [Intrinsic Motivat...] [2010-10-12 11:40:37] [b98453cac15ba1066b407e146608df68]
- RMPD    [Cronbach Alpha] [WS3 task 1 tot qu...] [2014-10-14 10:23:49] [9772ee27deeac3d50cc1fb84835cd7d6] [Current]

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Dataseries X:

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Boxplots

7	7	7	5	5	7	4	5	6	6	4	5
5	5	5	5	4	4	4	4	4	4	3	4
6	5	4	4	5	4	5	5	6	2	5	5
4	5	5	5	4	4	5	5	4	2	2	3
5	5	5	5	4	4	4	4	2	2	2	2
6	6	6	7	6	6	6	5	5	5	5	4
7	4	7	7	5	4	4	4	1	1	1	1
6	5	5	6	3	2	2	5	6	4	5	5
6	7	7	6	4	6	5	4	3	5	4	4
6	5	5	6	4	3	5	4	4	4	3	3
5	2	4	6	2	6	5	6	3	1	1	5
5	5	6	6	5	5	6	4	2	2	5	4
4	5	4	6	3	4	3	3	4	4	3	3
6	6	6	6	5	5	5	5	3	2	2	1
6	6	7	7	6	7	7	7	5	6	6	6
5	5	6	5	4	4	5	4	3	3	3	2
3	3	4	3	3	1	2	2	3	2	2	2
7	6	6	7	6	6	7	6	6	6	6	6
3	5	6	6	7	7	5	7	1	2	1	1
5	5	6	6	2	4	3	4	1	6	4	4
3	3	4	4	6	5	3	5	1	1	1	2
5	5	5	6	4	4	1	6	5	4	5	5
2	1	2	2	1	1	2	1	2	1	1	2
6	5	6	6	4	4	5	3	3	4	3	3
3	4	5	5	3	2	5	4	3	2	2	4
6	6	6	7	6	6	7	5	5	5	6	1
6	6	6	7	6	6	7	5	5	5	6	1
5	4	5	5	3	3	2	1	1	1	1	2
5	4	5	6	6	5	4	4	2	1	2	4
7	5	5	6	4	5	5	5	3	4	4	4
6	4	6	6	7	6	6	6	5	4	4	4
5	5	6	6	4	5	5	5	3	5	4	5
5	6	5	5	4	4	5	5	5	5	4	6
4	3	4	4	3	4	4	4	3	3	3	3
4	5	6	5	4	1	3	4	2	1	1	3
6	5	5	6	6	5	6	4	4	5	3	4
5	3	5	5	3	3	3	3	3	2	1	1
5	5	5	5	2	4	5	4	3	3	3	5
7	7	7	7	7	7	7	7	6	6	6	6
5	6	5	6	7	7	5	6	6	4	3	2
5	4	5	4	5	5	5	4	3	4	4	4
6	5	7	5	5	5	5	5	3	2	2	3
5	5	5	5	6	7	6	5	4	3	3	4
6	6	7	6	7	7	5	7	4	5	4	5
7	7	6	6	6	7	6	6	2	5	3	2
5	3	3	4	3	2	2	5	2	2	2	3
5	4	4	4	4	3	2	3	3	2	2	2
5	6	6	6	4	2	4	5	2	1	1	4
6	5	5	5	4	4	5	4	5	4	4	5
2	2	4	5	2	4	3	5	5	1	2	2
4	4	4	6	4	4	4	4	6	4	3	4
4	4	6	5	3	4	2	2	3	4	4	3
6	5	5	6	5	5	5	5	3	5	4	4
3	4	4	5	3	4	2	2	2	4	2	2
6	6	6	6	5	5	6	6	5	5	4	5
6	2	5	5	5	5	5	5	2	2	2	4
5	4	5	6	4	5	5	5	4	3	3	4
6	6	6	6	5	5	5	2	4	2	2	2
1	4	6	3	5	5	5	6	1	1	1	1
5	5	6	6	6	5	6	6	6	5	4	4
7	6	5	6	4	4	5	5	2	2	1	4
4	4	5	5	4	5	5	3	3	3	3	3
5	6	5	5	7	7	7	6	4	4	4	4
6	6	5	6	6	6	6	7	3	2	1	5
4	5	4	4	5	5	4	5	4	5	4	5
6	6	5	5	6	5	5	6	3	2	1	5
6	6	6	6	6	6	6	6	6	6	6	6
5	4	6	6	5	5	5	5	4	5	4	4
5	6	5	6	4	5	5	5	5	4	4	5
3	3	5	5	2	3	2	4	3	2	2	2
5	5	5	6	7	5	5	5	4	4	5	6
6	5	6	6	5	5	6	6	3	5	5	5
5	5	6	6	5	4	3	4	3	4	3	2
6	6	6	6	6	5	5	4	6	6	5	6
6	6	6	6	6	6	6	6	6	6	5	5
4	4	4	4	4	4	4	4	2	4	4	4
4	4	4	4	4	4	4	4	2	4	4	4
6	5	5	5	6	6	5	5	6	3	3	4
7	6	6	7	6	4	7	7	5	6	5	7
4	3	3	5	5	5	2	4	1	2	3	1
5	6	7	7	7	6	7	7	2	2	4	2
6	2	5	5	3	3	3	2	5	2	2	3
6	5	6	6	6	5	6	4	3	3	3	3
5	3	6	6	5	5	5	5	3	2	3	4
3	4	5	5	6	5	6	3	4	4	5	4
7	6	6	6	7	7	7	6	6	5	5	5
6	5	6	7	4	6	5	5	4	4	4	4
4	4	4	5	2	4	3	3	2	3	3	3
4	5	6	4	3	2	2	1	4	4	4	2
5	5	5	5	5	6	5	5	4	3	3	3
3	4	4	4	5	3	5	5	2	2	2	3
7	7	7	6	6	6	6	6	4	5	5	5
6	4	6	6	3	3	5	5	3	3	3	4
6	6	6	5	3	5	5	5	6	5	4	4
4	4	4	4	5	5	5	5	4	3	3	3
5	4	5	5	5	5	5	5	4	3	3	3
6	6	6	7	3	5	6	5	3	4	2	4
5	3	5	6	4	4	4	5	3	3	4	4
6	4	4	5	1	4	5	6	3	3	3	3
6	7	7	6	7	6	6	7	4	6	6	6
4	5	6	6	4	2	5	4	2	3	3	3
5	5	5	5	7	7	5	3	2	1	1	1
6	6	6	6	4	4	4	5	3	5	5	5
5	5	6	6	5	6	6	6	3	6	5	5
5	5	5	5	5	6	6	4	4	4	3	3
4	4	5	5	6	4	5	4	4	4	3	4
4	5	5	4	4	5	3	2	2	5	3	2
6	6	5	7	4	4	5	4	5	4	4	6
5	5	7	7	4	4	3	1	5	4	1	5
6	5	6	5	6	6	6	6	4	3	5	5
5	4	7	7	4	4	4	6	4	1	2	1
6	4	6	6	3	5	6	6	3	2	3	2
5	5	5	5	3	3	5	5	4	3	2	3
4	5	4	5	5	5	5	5	4	2	3	3
6	6	6	7	5	6	6	5	5	5	5	5
4	5	4	5	3	3	4	2	4	2	3	3
5	3	3	5	4	5	3	4	5	2	2	3
5	5	5	5	5	4	4	4	3	4	3	4
6	3	5	5	5	6	5	6	2	2	1	1
3	4	5	3	3	3	4	2	1	3	3	3
5	4	5	5	3	4	2	5	5	4	5	4
4	5	5	5	5	6	6	6	5	3	4	6
5	2	5	4	3	4	3	5	3	1	1	2
5	5	3	4	4	5	4	4	4	5	4	5
7	7	7	7	7	7	7	7	4	1	1	3
5	6	6	6	6	5	6	3	5	4	4	4
7	6	6	6	5	6	6	6	5	5	6	6
5	5	4	6	2	2	7	2	3	3	3	2
4	4	4	5	4	5	5	4	4	4	3	4
6	6	6	5	6	6	5	6	6	3	3	5
4	3	4	5	6	3	5	5	4	3	4	4
4	7	6	6	5	6	6	6	5	6	6	5
4	3	2	2	4	2	2	4	4	2	1	2
4	4	5	5	4	4	4	4	4	4	2	3
6	6	5	7	5	5	7	6	5	5	4	6
6	5	6	6	3	3	4	3	4	4	3	3
5	6	5	5	5	5	7	5	3	4	2	5
3	4	4	5	5	5	4	4	3	3	2	4
6	6	6	6	5	6	7	5	6	4	5	5
5	6	6	6	6	5	5	4	5	5	5	5
4	4	5	5	4	2	2	2	2	3	2	1
5	5	5	5	3	5	5	4	4	5	4	4
2	3	2	2	3	5	3	7	3	2	2	2
5	6	6	7	4	4	3	4	3	6	4	5
7	5	6	7	5	6	6	6	5	6	4	7
4	6	5	5	5	5	3	4	3	2	2	3
4	5	6	6	3	4	4	6	3	3	3	4
7	6	7	5	6	4	6	6	4	4	3	4
6	5	5	6	5	5	5	5	5	4	4	5
5	6	5	5	4	5	6	5	5	4	5	4
5	5	5	6	5	4	5	5	5	4	2	1
5	5	6	6	4	6	2	6	5	3	2	2
7	6	7	7	7	6	5	4	3	7	5	5
6	5	7	6	5	7	6	2	4	4	2	2
6	6	6	6	3	7	7	5	4	4	4	4
5	5	5	6	5	5	4	4	3	4	4	5
2	4	6	6	2	4	4	6	4	4	4	6
4	4	4	4	4	4	4	4	4	4	4	4
6	4	6	6	3	3	5	5	3	3	3	4
5	5	6	4	4	4	4	4	2	5	4	6
5	4	4	5	5	4	4	4	4	3	2	4
5	5	5	5	4	4	5	5	4	5	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	'George Udny Yule' @ yule.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 & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=240909&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]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=240909&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=240909&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	'George Udny Yule' @ yule.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.889	0.8917	0.9143	0.4068
Q1_2 excluded	0.8793	0.8816	0.9064	0.4036
Q1_9 excluded	0.8743	0.8764	0.9017	0.3918
Q1_16 excluded	0.8822	0.884	0.904	0.4092
Q1_23 excluded	0.8804	0.8818	0.9036	0.4042
Q1_6 excluded	0.8826	0.8854	0.9073	0.4126
Q1_13 excluded	0.8783	0.8816	0.9025	0.4037
Q1_20 excluded	0.8754	0.8787	0.9039	0.3971
Q1_27 excluded	0.8851	0.8881	0.9097	0.4192
Q1_4 excluded	0.8847	0.8882	0.9116	0.4195
Q1_11 excluded	0.8783	0.8816	0.8983	0.4037
Q1_18 excluded	0.8773	0.8813	0.9001	0.4029
Q1_25 excluded	0.8831	0.8862	0.9077	0.4145

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.889 & 0.8917 & 0.9143 & 0.4068 \tabularnewline
Q1_2 excluded & 0.8793 & 0.8816 & 0.9064 & 0.4036 \tabularnewline
Q1_9 excluded & 0.8743 & 0.8764 & 0.9017 & 0.3918 \tabularnewline
Q1_16 excluded & 0.8822 & 0.884 & 0.904 & 0.4092 \tabularnewline
Q1_23 excluded & 0.8804 & 0.8818 & 0.9036 & 0.4042 \tabularnewline
Q1_6 excluded & 0.8826 & 0.8854 & 0.9073 & 0.4126 \tabularnewline
Q1_13 excluded & 0.8783 & 0.8816 & 0.9025 & 0.4037 \tabularnewline
Q1_20 excluded & 0.8754 & 0.8787 & 0.9039 & 0.3971 \tabularnewline
Q1_27 excluded & 0.8851 & 0.8881 & 0.9097 & 0.4192 \tabularnewline
Q1_4 excluded & 0.8847 & 0.8882 & 0.9116 & 0.4195 \tabularnewline
Q1_11 excluded & 0.8783 & 0.8816 & 0.8983 & 0.4037 \tabularnewline
Q1_18 excluded & 0.8773 & 0.8813 & 0.9001 & 0.4029 \tabularnewline
Q1_25 excluded & 0.8831 & 0.8862 & 0.9077 & 0.4145 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=240909&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]0.889[/C][C]0.8917[/C][C]0.9143[/C][C]0.4068[/C][/ROW]
[ROW][C]Q1_2 excluded[/C][C]0.8793[/C][C]0.8816[/C][C]0.9064[/C][C]0.4036[/C][/ROW]
[ROW][C]Q1_9 excluded[/C][C]0.8743[/C][C]0.8764[/C][C]0.9017[/C][C]0.3918[/C][/ROW]
[ROW][C]Q1_16 excluded[/C][C]0.8822[/C][C]0.884[/C][C]0.904[/C][C]0.4092[/C][/ROW]
[ROW][C]Q1_23 excluded[/C][C]0.8804[/C][C]0.8818[/C][C]0.9036[/C][C]0.4042[/C][/ROW]
[ROW][C]Q1_6 excluded[/C][C]0.8826[/C][C]0.8854[/C][C]0.9073[/C][C]0.4126[/C][/ROW]
[ROW][C]Q1_13 excluded[/C][C]0.8783[/C][C]0.8816[/C][C]0.9025[/C][C]0.4037[/C][/ROW]
[ROW][C]Q1_20 excluded[/C][C]0.8754[/C][C]0.8787[/C][C]0.9039[/C][C]0.3971[/C][/ROW]
[ROW][C]Q1_27 excluded[/C][C]0.8851[/C][C]0.8881[/C][C]0.9097[/C][C]0.4192[/C][/ROW]
[ROW][C]Q1_4 excluded[/C][C]0.8847[/C][C]0.8882[/C][C]0.9116[/C][C]0.4195[/C][/ROW]
[ROW][C]Q1_11 excluded[/C][C]0.8783[/C][C]0.8816[/C][C]0.8983[/C][C]0.4037[/C][/ROW]
[ROW][C]Q1_18 excluded[/C][C]0.8773[/C][C]0.8813[/C][C]0.9001[/C][C]0.4029[/C][/ROW]
[ROW][C]Q1_25 excluded[/C][C]0.8831[/C][C]0.8862[/C][C]0.9077[/C][C]0.4145[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=240909&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=240909&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	0.889	0.8917	0.9143	0.4068
Q1_2 excluded	0.8793	0.8816	0.9064	0.4036
Q1_9 excluded	0.8743	0.8764	0.9017	0.3918
Q1_16 excluded	0.8822	0.884	0.904	0.4092
Q1_23 excluded	0.8804	0.8818	0.9036	0.4042
Q1_6 excluded	0.8826	0.8854	0.9073	0.4126
Q1_13 excluded	0.8783	0.8816	0.9025	0.4037
Q1_20 excluded	0.8754	0.8787	0.9039	0.3971
Q1_27 excluded	0.8851	0.8881	0.9097	0.4192
Q1_4 excluded	0.8847	0.8882	0.9116	0.4195
Q1_11 excluded	0.8783	0.8816	0.8983	0.4037
Q1_18 excluded	0.8773	0.8813	0.9001	0.4029
Q1_25 excluded	0.8831	0.8862	0.9077	0.4145

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

R code (references can be found in the software module):

library(psych)
z <- t(y)
(r <- alpha(z))
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