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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 computationTue, 09 Dec 2014 13:26:09 +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/09/t1418131574dj34oyhmuilxljk.htm/, Retrieved Thu, 16 May 2024 11:13:42 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=264592, Retrieved Thu, 16 May 2024 11:13:42 +0000
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Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact61

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [] [2014-12-09 13:26:09] [efc983391fe36da4845de855ec76c3b2] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 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 & 1 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=264592&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]'Gwilym Jenkins' @ jenkins.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=264592&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264592&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 time1 seconds
R Server'Gwilym Jenkins' @ jenkins.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.77610.78540.75810.4778
AMS7 excluded0.7220.72710.65020.4703
AMS14 excluded0.76050.76950.70830.5266
AMS21 excluded0.70690.72820.6670.4718
AMS28 excluded0.7020.70410.61830.4423

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7761 & 0.7854 & 0.7581 & 0.4778 \tabularnewline
AMS7 excluded & 0.722 & 0.7271 & 0.6502 & 0.4703 \tabularnewline
AMS14 excluded & 0.7605 & 0.7695 & 0.7083 & 0.5266 \tabularnewline
AMS21 excluded & 0.7069 & 0.7282 & 0.667 & 0.4718 \tabularnewline
AMS28 excluded & 0.702 & 0.7041 & 0.6183 & 0.4423 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=264592&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]0.7761[/C][C]0.7854[/C][C]0.7581[/C][C]0.4778[/C][/ROW]
[ROW][C]AMS7 excluded[/C][C]0.722[/C][C]0.7271[/C][C]0.6502[/C][C]0.4703[/C][/ROW]
[ROW][C]AMS14 excluded[/C][C]0.7605[/C][C]0.7695[/C][C]0.7083[/C][C]0.5266[/C][/ROW]
[ROW][C]AMS21 excluded[/C][C]0.7069[/C][C]0.7282[/C][C]0.667[/C][C]0.4718[/C][/ROW]
[ROW][C]AMS28 excluded[/C][C]0.702[/C][C]0.7041[/C][C]0.6183[/C][C]0.4423[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=264592&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264592&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 itmes0.77610.78540.75810.4778
AMS7 excluded0.7220.72710.65020.4703
AMS14 excluded0.76050.76950.70830.5266
AMS21 excluded0.70690.72820.6670.4718
AMS28 excluded0.7020.70410.61830.4423


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)
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')