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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 computationSun, 20 Oct 2013 09:24:59 -0400
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2013/Oct/20/t1382275526m59bj121hu27dnw.htm/, Retrieved Sat, 27 Apr 2024 15:38:42 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=216957, Retrieved Sat, 27 Apr 2024 15:38:42 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact78

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [WS3 T2.2 AVB] [2013-10-20 13:24:59] [b11444c1beff55480dbed17c58cce579] [Current]
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Dataset

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

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'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=216957&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=216957&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=216957&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'George Udny Yule' @ yule.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.82480.82480.78660.5406
Q1_6 excluded0.78060.78060.70660.5426
Q1_13 excluded0.74430.74390.66350.492
Q1_20 excluded0.77520.77520.71150.5348
Q1_27 excluded0.81340.81390.74830.5932

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8248 & 0.8248 & 0.7866 & 0.5406 \tabularnewline
Q1_6 excluded & 0.7806 & 0.7806 & 0.7066 & 0.5426 \tabularnewline
Q1_13 excluded & 0.7443 & 0.7439 & 0.6635 & 0.492 \tabularnewline
Q1_20 excluded & 0.7752 & 0.7752 & 0.7115 & 0.5348 \tabularnewline
Q1_27 excluded & 0.8134 & 0.8139 & 0.7483 & 0.5932 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=216957&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]0.8248[/C][C]0.8248[/C][C]0.7866[/C][C]0.5406[/C][/ROW]
[ROW][C]Q1_6 excluded[/C][C]0.7806[/C][C]0.7806[/C][C]0.7066[/C][C]0.5426[/C][/ROW]
[ROW][C]Q1_13 excluded[/C][C]0.7443[/C][C]0.7439[/C][C]0.6635[/C][C]0.492[/C][/ROW]
[ROW][C]Q1_20 excluded[/C][C]0.7752[/C][C]0.7752[/C][C]0.7115[/C][C]0.5348[/C][/ROW]
[ROW][C]Q1_27 excluded[/C][C]0.8134[/C][C]0.8139[/C][C]0.7483[/C][C]0.5932[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=216957&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=216957&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 itmes0.82480.82480.78660.5406
Q1_6 excluded0.78060.78060.70660.5426
Q1_13 excluded0.74430.74390.66350.492
Q1_20 excluded0.77520.77520.71150.5348
Q1_27 excluded0.81340.81390.74830.5932


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
Parameters (R input):
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')