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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationWed, 17 Dec 2014 15:54:15 +0000
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2014/Dec/17/t14188316638stn54w9z1ks3cd.htm/, Retrieved Thu, 16 May 2024 12:13:53 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270444, Retrieved Thu, 16 May 2024 12:13:53 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact65

Tree of Dependent Computations

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 11:46:14] [b98453cac15ba1066b407e146608df68]
- RMPD    [Cronbach Alpha] [] [2014-12-17 15:54:15] [1d338d9433eb3ecdb4d9d35f41140a45] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
2	2	2	2
4	4	5	5
3	3	3	3
7	6	6	5
3	4	5	4
5	5	5	4
5	5	1	5
4	4	4	3
7	7	7	7
5	5	6	5
3	5	5	5
6	5	6	5
2	5	6	6
5	5	6	6
5	6	7	7
4	5	6	5
4	4	5	3
5	5	4	5
5	4	4	5
6	7	6	7
6	6	5	7
5	5	5	5
5	4	5	5
3	5	6	5
6	6	5	6
5	5	4	4
4	5	3	4
4	5	4	5
4	6	6	5
4	5	5	6
3	5	5	2
5	5	5	4
4	5	6	4
2	1	2	2
3	5	6	6
5	5	5	5
5	6	3	5
5	4	6	4
5	5	5	5
4	3	4	7
4	3	5	2
3	4	5	5
4	4	4	5
2	2	2	2
2	3	2	2
5	5	6	6
5	5	5	5
5	6	5	4
4	6	6	6
6	5	6	5
5	5	6	6
2	4	5	5
4	2	3	5
6	6	6	6
5	5	6	5
5	5	5	5
2	6	6	6
3	6	5	4
3	5	3	3
5	5	5	4
7	6	6	5
4	3	6	6
2	3	6	5
2	4	5	5
4	5	5	2
4	4	3	3
5	5	6	6
4	4	7	6
4	5	4	2
3	3	5	3
4	3	5	3
3	2	4	5
6	5	4	5
6	5	5	5
2	2	4	6
5	5	4	5
2	4	5	5
4	3	3	3
7	6	7	6
3	3	5	2
4	4	5	5
4	4	3	4
4	4	5	5
6	5	6	4
3	4	5	5
5	4	6	3
5	5	5	5
4	5	4	5
6	7	6	6
4	5	5	6
4	4	6	5
4	4	5	5
3	3	3	3
4	5	7	6
2	5	4	5
4	5	5	4
5	6	6	6
4	5	6	5
4	5	6	5
4	4	4	4
6	6	4	6
4	5	5	5
5	7	6	5
1	2	2	1
4	4	6	5
5	6	6	7
5	4	5	5
2	4	4	5
3	5	6	4
5	4	4	5
5	6	6	5
5	6	6	6
1	6	5	6
4	5	4	4
2	2	1	1
3	5	7	7
5	5	5	5
3	4	5	4
4	6	3	3
5	4	4	4
6	6	4	4
5	6	5	7
5	4	4	5
5	3	2	3
6	6	5	5
5	5	5	5
5	5	5	5
2	4	3	4
4	7	4	1
7	7	6	5
4	5	3	4
2	4	5	4
5	5	4	5
6	5	4	4
6	6	6	6
2	2	2	3
5	6	5	6
3	4	4	4
4	6	6	6
5	5	6	6
6	6	5	7
3	2	3	4
2	6	7	6
6	6	6	7
7	7	6	6
5	5	6	5
3	4	3	4
7	7	7	7
5	5	6	5
5	5	3	3
4	3	4	5
6	7	6	6
4	6	5	6
6	5	6	5
3	3	1	2
5	5	5	5
4	6	5	4
7	7	3	7
4	6	6	6
5	5	6	6
1	4	2	5
4	3	5	5
4	5	4	5
2	2	5	1
5	6	6	5
6	7	6	5
3	6	6	3
4	5	4	5
6	5	6	6
4	6	6	5
5	6	5	5
7	7	7	7
4	5	4	4
4	5	6	6
5	5	6	5
5	5	5	5
4	5	4	5
3	4	5	5
1	2	2	2
4	5	5	3
4	4	2	4
4	5	5	4
5	4	2	3
5	6	6	6
5	5	5	5
2	3	5	4
4	6	2	5
6	6	5	4
6	6	6	5
6	6	6	6
4	6	6	5
3	4	4	3
6	6	6	6
3	3	5	5
6	6	4	5
1	4	2	1
5	3	5	4
3	5	6	4
4	4	5	4
4	2	5	5
5	5	6	6
4	5	6	2
5	6	5	5
5	4	6	5
5	5	4	6
3	5	6	5
2	1	1	4
5	3	5	6
2	4	2	3
3	4	3	3
3	5	5	5
5	5	5	4
6	6	6	5
4	4	6	6
5	7	5	5
4	5	5	5
3	4	5	4
3	2	3	3
6	5	5	5
3	3	4	4
5	6	5	5
5	5	4	6
5	5	6	5
4	5	5	6
4	4	5	6
5	5	4	5
4	4	5	5
4	5	6	5
5	5	5	6
5	6	6	5
4	6	4	5
6	6	6	5
4	3	3	6
5	6	6	6
3	5	5	5
5	6	6	6
5	5	5	5
5	5	5	5
6	7	5	5
2	7	2	2
3	6	6	6
7	7	7	5
2	6	5	5
4	6	5	4
5	6	3	4
5	5	6	3
3	6	6	3
6	6	3	4
4	3	3	3
2	3	2	3
5	6	4	6
7	6	6	5
6	5	4	6
6	6	6	5
3	5	5	5
2	3	5	1
4	5	4	3
6	4	4	6
4	5	5	6
6	7	7	6
3	6	7	5
2	4	2	4
3	5	3	4
3	4	6	5
4	3	3	4
4	5	4	5
2	5	4	5
6	5	5	3
2	3	1	1
6	1	7	7
6	6	6	6
5	5	6	5
5	5	5	5
3	7	5	7
4	5	4	4
4	5	6	4
5	5	5	5
3	5	4	4
5	5	5	5
3	5	4	4
4	5	5	5
5	5	4	5
6	5	7	6
1	4	1	1
5	5	4	3
5	6	6	6
5	7	6	5
5	5	5	6
5	4	3	6
1	1	1	1
7	7	7	6
3	4	6	5
5	5	5	5
2	3	5	5
4	5	6	4
2	2	5	5
3	3	4	4
4	4	3	6
4	5	5	6
4	5	4	3
5	4	4	3
1	1	4	5
4	5	6	6
2	4	1	3
5	4	4	5
4	5	4	5
2	5	4	5
2	2	5	6
1	5	6	5
3	3	5	4
5	2	3	2
5	5	5	5
6	4	5	5
3	4	6	5
7	2	6	6
5	6	6	5
5	5	5	6
5	7	7	6
2	3	5	2
6	4	7	5
7	6	5	6
6	5	3	3
5	6	5	4
5	5	5	5
5	5	5	4
6	6	6	6
2	5	5	6
3	5	3	4
7	6	6	6
6	7	7	7
5	3	5	4
5	4	5	4
4	5	5	3
5	6	6	7
4	4	4	6
7	7	7	6
4	4	5	5
6	6	6	5
5	3	6	4
6	5	6	4
7	6	6	6
4	4	6	4
6	5	1	7
5	5	5	5
4	2	3	2
6	6	5	5
5	6	7	6
4	6	6	7
4	3	4	5
5	7	6	6
4	4	4	4
4	6	3	3
4	4	5	5
5	4	4	4
5	6	6	4
2	6	1	6
4	4	4	3
5	6	4	4
5	5	6	5
4	5	5	5
5	5	5	4
5	5	4	4
4	2	4	4
4	4	5	4
6	6	7	6
4	5	4	1
5	4	5	5
5	4	5	6
3	5	7	5
4	6	5	5
5	5	5	4
5	4	5	4
6	6	5	5
5	3	5	5
6	5	5	6
5	5	5	4
5	5	5	5
5	5	6	6
6	6	4	6
5	5	7	7
5	4	4	5
5	4	5	7
4	6	7	5
5	5	4	5
3	4	6	5
6	6	6	6
6	4	5	6
6	5	5	5
2	6	6	6
3	5	5	4
5	5	5	5
7	5	4	6
7	6	6	5
6	6	6	6
4	5	7	4
4	5	5	5
4	4	6	6
5	4	3	4
5	5	6	5
4	5	6	7
5	5	5	4
5	6	4	4
2	4	3	4
6	5	5	6
5	5	5	5
5	5	5	6
4	5	6	6
4	4	4	3
6	6	5	6
5	6	5	6
5	4	3	3
5	5	5	5
6	6	5	6
6	6	5	4
5	4	5	4
5	6	6	6
5	3	3	5
5	3	4	6
4	5	4	5
1	1	4	4
4	5	4	4
5	5	5	5
1	3	5	4
7	6	6	6
4	2	7	5
5	5	5	5
5	4	4	5
4	5	6	4
3	2	3	3
4	5	5	3
5	5	6	6
6	6	4	5
5	5	5	4
5	5	3	7
6	4	5	6
5	5	6	6
5	6	5	4
5	5	6	5
4	4	4	3
5	6	5	6
5	5	5	6
7	7	7	7
5	5	5	5
5	5	5	5
6	6	7	4
3	5	3	4
6	4	5	4
4	6	5	6
5	6	4	4
4	3	5	4
3	5	4	5
7	7	7	5
4	5	6	5
4	3	3	3
5	4	5	5
4	5	6	6
4	6	5	6
5	6	6	7
5	6	6	6
4	5	6	5
6	6	6	5
5	5	7	7
2	2	2	2
5	5	5	4
3	4	6	5
6	5	5	4
5	6	5	5
3	4	5	4
4	5	4	4
4	6	5	6
7	6	7	7
3	3	3	3
5	3	3	6
3	7	3	4
5	4	4	5
5	6	6	7
4	4	5	5
4	4	4	6
5	7	6	6
4	5	5	4
5	4	5	5
4	5	5	5
4	7	7	6
4	5	3	3
5	6	5	6
4	4	5	4
5	5	5	5
6	6	5	5

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 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 & 2 seconds \tabularnewline
R Server & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270444&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]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270444&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270444&T=0

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'George Udny Yule' @ yule.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.77210.77270.72470.4594
Q6 excluded0.72740.7270.6430.4703
Q13 excluded0.71290.71420.63010.4545
Q20 excluded0.71680.7170.63070.4579
Q27 excluded0.71370.71470.62920.4551

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7721 & 0.7727 & 0.7247 & 0.4594 \tabularnewline
Q6 excluded & 0.7274 & 0.727 & 0.643 & 0.4703 \tabularnewline
Q13 excluded & 0.7129 & 0.7142 & 0.6301 & 0.4545 \tabularnewline
Q20 excluded & 0.7168 & 0.717 & 0.6307 & 0.4579 \tabularnewline
Q27 excluded & 0.7137 & 0.7147 & 0.6292 & 0.4551 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270444&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]0.7721[/C][C]0.7727[/C][C]0.7247[/C][C]0.4594[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.7274[/C][C]0.727[/C][C]0.643[/C][C]0.4703[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.7129[/C][C]0.7142[/C][C]0.6301[/C][C]0.4545[/C][/ROW]
[ROW][C]Q20 excluded[/C][C]0.7168[/C][C]0.717[/C][C]0.6307[/C][C]0.4579[/C][/ROW]
[ROW][C]Q27 excluded[/C][C]0.7137[/C][C]0.7147[/C][C]0.6292[/C][C]0.4551[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270444&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270444&T=1

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.77210.77270.72470.4594
Q6 excluded0.72740.7270.6430.4703
Q13 excluded0.71290.71420.63010.4545
Q20 excluded0.71680.7170.63070.4579
Q27 excluded0.71370.71470.62920.4551


Figures (Output of Computation)

Input Parameters & R Code

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')