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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, 10 Dec 2014 12:35:20 +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/10/t1418214951kmymzlh6kwz805o.htm/, Retrieved Sun, 19 May 2024 16:36:57 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=265029, Retrieved Sun, 19 May 2024 16:36:57 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact83

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 11:40:37] [b98453cac15ba1066b407e146608df68]
- RMPD    [Cronbach Alpha] [i1 cronbach] [2014-12-10 12:35:20] [ef562ec391a3ad5a7cbe41e167f467b9] [Current]
-    D      [Cronbach Alpha] [i2] [2014-12-10 12:37:20] [eee95947b6243a1febfcd5f41483d733]
-    D        [Cronbach Alpha] [i3] [2014-12-10 12:38:37] [eee95947b6243a1febfcd5f41483d733]
-    D          [Cronbach Alpha] [e1] [2014-12-10 12:40:06] [eee95947b6243a1febfcd5f41483d733]
-    D            [Cronbach Alpha] [e2] [2014-12-10 12:41:25] [eee95947b6243a1febfcd5f41483d733]
-  M                [Cronbach Alpha] [e2] [2014-12-10 12:41:41] [eee95947b6243a1febfcd5f41483d733]
-  M D                [Cronbach Alpha] [e3] [2014-12-10 12:43:28] [eee95947b6243a1febfcd5f41483d733]
-   PD      [Cronbach Alpha] [] [2014-12-15 12:08:21] [eee95947b6243a1febfcd5f41483d733]
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Dataset

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

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'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 & 2 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265029&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]'Gwilym Jenkins' @ jenkins.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265029&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265029&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'Gwilym Jenkins' @ jenkins.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.80840.80950.76610.5151
AMS2 excluded0.76410.76640.68920.5224
AMS9 excluded0.76030.76180.68440.516
AMS16 excluded0.75740.75840.67830.5114
AMS23 excluded0.75780.75780.67820.5105

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8084 & 0.8095 & 0.7661 & 0.5151 \tabularnewline
AMS2 excluded & 0.7641 & 0.7664 & 0.6892 & 0.5224 \tabularnewline
AMS9 excluded & 0.7603 & 0.7618 & 0.6844 & 0.516 \tabularnewline
AMS16 excluded & 0.7574 & 0.7584 & 0.6783 & 0.5114 \tabularnewline
AMS23 excluded & 0.7578 & 0.7578 & 0.6782 & 0.5105 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265029&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]0.8084[/C][C]0.8095[/C][C]0.7661[/C][C]0.5151[/C][/ROW]
[ROW][C]AMS2 excluded[/C][C]0.7641[/C][C]0.7664[/C][C]0.6892[/C][C]0.5224[/C][/ROW]
[ROW][C]AMS9 excluded[/C][C]0.7603[/C][C]0.7618[/C][C]0.6844[/C][C]0.516[/C][/ROW]
[ROW][C]AMS16 excluded[/C][C]0.7574[/C][C]0.7584[/C][C]0.6783[/C][C]0.5114[/C][/ROW]
[ROW][C]AMS23 excluded[/C][C]0.7578[/C][C]0.7578[/C][C]0.6782[/C][C]0.5105[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265029&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265029&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 itmes0.80840.80950.76610.5151
AMS2 excluded0.76410.76640.68920.5224
AMS9 excluded0.76030.76180.68440.516
AMS16 excluded0.75740.75840.67830.5114
AMS23 excluded0.75780.75780.67820.5105


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')