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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, 14 Dec 2014 09:43:57 +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/14/t14185502422u7q2aspkmkn2gw.htm/, Retrieved Thu, 16 May 2024 15:00:54 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=267362, Retrieved Thu, 16 May 2024 15:00:54 +0000
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Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact120

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [] [2014-12-14 09:43:57] [4bf1efda48b6e8e35beb7b429a900cbb] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
5 6 4 5
7 6 6 6
4 5 5 5
4 5 5 4
5 6 7 6
5 5 5 5
5 5 5 5
6 6 6 6
4 6 4 7
7 7 7 7
1 1 6 2
5 6 5 6
4 5 5 5
6 7 7 7
5 6 6 6
5 6 6 7
6 6 6 6
5 6 7 7
5 6 6 7
5 6 5 5
7 7 7 7
7 7 7 7
5 7 3 7
7 7 6 6
6 6 7 7
4 6 6 5
5 7 7 7
6 6 5 6
5 5 5 5
5 7 6 6
7 6 6 6
5 6 6 7
3 6 5 6
5 7 6 5
5 7 6 6
6 7 6 6
6 6 6 5
2 7 6 6
6 7 5 5
5 5 5 6
4 5 5 4
5 7 6 6
5 4 5 4
5 5 5 6
6 5 6 6
6 6 6 7
6 6 4 6
4 6 6 6
3 7 6 7
5 6 7 6
6 6 6 7
6 6 4 6
5 6 6 7
4 6 5 6
6 6 6 6
6 7 6 6
4 7 6 6
6 7 7 7
6 7 7 7
5 5 6 7
5 6 2 5
5 5 4 6
2 7 7 7
3 7 7 7
5 7 7 7
6 6 2 6
6 6 6 5
7 5 5 5
5 7 5 6
4 4 5 4
5 4 4 7
4 6 6 6
3 6 4 5
3 6 5 5
3 5 6 5
3 4 4 5
6 6 6 6
6 7 7 6
2 4 4 4
5 7 6 7
6 6 5 6
4 5 4 5
4 5 7 6
6 6 7 7
7 7 5 6
7 7 6 6
6 6 7 7
7 6 5 6
5 5 6 6
4 6 5 6
5 5 6 6
7 7 7 7
6 5 5 6
7 7 6 6
5 5 5 5
6 6 6 6
5 5 5 6
5 6 5 7
5 6 7 5
5 6 6 6
5 5 6 6
5 6 6 6
5 6 5 5
7 7 6 7
5 6 6 6
6 6 7 7
6 7 7 7
6 7 7 7
6 5 7 5
2 7 7 7
5 5 7 6
7 7 7 7
5 7 6 6
5 5 5 5
6 6 5 6
4 6 6 6
3 4 3 5
7 7 6 7
4 6 6 7
5 6 6 6
6 4 6 4
6 5 5 2
6 5 6 5
4 5 6 5
5 6 5 5
6 7 6 6
5 5 3 6
5 7 7 6
6 6 6 6
1 7 7 7
7 7 7 7
7 7 4 4
5 6 5 5
3 6 7 7
4 5 5 5
5 5 5 6
5 7 7 6
6 4 6 7
7 7 7 7
5 5 1 3
6 5 6 6
5 6 6 7
6 7 5 7
2 4 5 4
4 5 7 7
5 7 7 7
3 5 7 6
6 7 6 7
2 5 4 4
5 6 6 6
4 4 3 4
1 5 5 5
5 5 5 5
4 5 5 6
4 6 5 5
5 6 5 5
7 7 7 7
2 6 5 6
3 7 4 7
4 7 5 6
7 7 6 7
5 5 5 5
4 4 5 4
6 7 6 7
5 5 6 5
6 6 6 6
6 5 5 5
6 7 5 7
5 6 5 6
2 5 5 5
3 3 5 3
5 6 6 6
7 7 7 7
6 6 6 6
5 6 5 6
6 6 6 6
6 7 6 6
5 6 5 5
4 6 6 6
2 5 4 5
3 5 5 5
6 7 7 7
4 4 4 5
6 7 5 7
6 7 5 6
6 5 5 5
7 4 5 5
4 5 6 4
7 7 6 7
7 7 7 7
4 5 5 5
5 6 6 6
5 6 7 7
5 7 7 7
5 6 7 7
5 7 6 7
6 6 6 6
6 6 6 6
7 6 5 6
4 6 6 6
7 6 2 6
5 6 2 4
5 6 6 6
1 5 6 5
5 7 6 7
5 5 5 4
2 2 2 2
4 4 4 2
4 7 6 5
6 7 6 6
7 7 7 7
4 7 7 7
7 6 6 5
2 3 5 5
7 6 6 6
4 6 7 7
7 7 7 7
7 6 5 6
5 6 7 7
5 6 6 6
7 7 5 7
5 7 7 7
6 6 5 5
5 6 7 7
3 5 6 6
3 7 6 6
5 7 7 7
3 6 5 6
5 7 7 7
6 7 7 6
5 5 6 5
5 5 6 5
4 7 6 7
4 6 6 5
4 5 4 5
5 6 6 6
6 7 7 6
5 6 6 6
6 7 6 6
5 5 5 5
5 6 7 7
5 7 7 7
2 6 5 6
5 5 6 5
5 6 6 6
6 7 5 6
1 3 1 1
4 6 6 6
5 5 5 6
7 7 7 7
6 6 6 6
2 2 5 5
2 5 5 5
6 6 3 5
7 7 7 7
3 7 4 5
6 6 6 6
5 5 5 6
5 6 5 5
6 7 7 6
5 7 6 6
6 6 7 7
6 6 6 7
5 6 6 6
6 6 6 6
6 6 6 6
7 5 7 7
4 6 7 6
4 6 4 6
5 3 4 4
6 6 6 6
5 5 5 5
6 6 6 5
5 6 6 6
5 6 2 5
6 5 5 5
7 7 4 7
5 6 6 6
6 7 6 7
6 7 7 6
7 6 5 6
4 6 7 6
5 6 4 6
6 5 6 6
5 5 5 5
5 6 6 6
5 6 7 6
6 7 5 5
4 4 4 4
5 5 4 4
7 7 7 7
6 7 7 6
3 6 6 6
2 6 6 6
4 6 6 5
5 7 7 7
1 7 1 6
2 6 6 2
5 5 6 5
6 6 7 6
5 6 5 6
4 4 6 5
6 6 6 6
6 7 5 6
6 6 5 5
7 7 6 7
6 6 5 5
6 6 6 6
6 6 7 7
6 7 6 7
7 7 7 7
5 5 5 5
5 6 6 6
2 7 7 7
6 7 6 7
5 5 5 5
5 7 4 4
3 3 3 3
5 6 5 5
7 7 7 7
6 5 7 6
6 6 6 6
6 6 6 6
6 6 5 5
5 7 7 7
6 6 5 6
5 2 1 2
7 6 7 7
4 6 7 7
6 7 7 6
4 5 5 4
5 6 5 6
6 6 6 6
3 5 3 5
6 6 5 6
5 7 4 5
7 7 7 7
5 5 5 4
4 6 4 4
6 7 7 7
4 3 6 4
4 6 6 4
6 6 6 6
6 6 5 7
7 4 4 5
5 7 6 6
6 7 6 6
5 7 7 6
6 7 6 7
6 6 6 7
6 6 7 7
1 3 6 4
5 5 4 5
5 6 6 6
6 7 6 6
6 6 5 6
5 5 4 5
4 7 6 6
4 7 6 7
5 6 5 5
5 7 4 5
6 7 5 6
5 6 6 6
5 6 5 6
5 5 6 5
6 6 5 6
5 7 6 7
5 4 4 4
6 7 7 7
7 7 7 7
6 6 6 6
6 7 7 7
4 6 5 7
5 6 6 6
5 7 5 7
5 6 7 6
6 7 7 6
3 6 6 6
6 6 6 5
5 5 4 4
5 7 7 6
4 6 7 7
6 7 7 7
5 5 5 5
6 7 6 6
5 6 6 6
4 7 7 7
5 6 7 6
4 7 5 7
5 5 4 5
4 7 7 7
7 7 7 7
6 7 7 6
5 7 6 6
6 6 7 6
7 7 7 7
6 5 6 6
3 4 4 4
3 5 5 5
6 6 6 6
6 7 7 7
6 7 6 6
7 5 6 6
6 7 7 6
2 6 5 6
5 7 4 7
5 6 4 6
4 6 6 6
6 7 4 6
5 6 6 6
5 6 4 5
4 6 5 5
5 7 6 7
7 7 7 7
5 5 4 5
2 7 6 6
5 5 6 5
6 6 6 7
5 5 4 4
5 6 5 6
5 6 5 5
5 6 5 5
7 6 6 6
4 6 5 5
3 6 6 7
6 7 7 7
4 7 6 6
6 7 6 6
7 7 7 7
6 7 6 6
6 6 6 6
7 6 7 7
4 5 5 5
6 6 5 7
5 7 5 5
6 5 6 6
5 5 6 5
4 6 5 6
5 5 5 5
7 7 6 6
7 7 7 7
5 5 6 7
3 5 5 6
5 6 7 5
4 5 4 5
5 4 6 6
7 7 7 7
4 6 6 6
7 7 7 7
5 6 4 5
3 7 6 7
5 7 7 6
6 7 6 4
4 5 5 4
4 6 6 6
5 6 5 5
4 5 5 5
2 6 6 6
6 7 7 7
6 7 7 7
6 6 3 5
7 7 6 6
6 7 6 6
5 6 6 6
4 7 7 6
6 7 7 7
7 7 7 7
6 6 7 7
6 7 7 7
6 6 5 6
7 7 7 7
6 6 5 5
5 6 6 6
6 7 7 7
4 6 5 3
6 5 6 5
5 6 6 6
5 6 7 7
2 4 4 4
3 5 7 6
6 7 7 6
7 7 7 7
5 6 5 6
6 6 6 6
7 7 7 7
6 6 6 6
5 7 7 7
3 6 3 6
4 5 5 5
5 7 7 7
5 7 7 7
4 4 2 2
6 6 6 6
7 7 6 6
4 6 7 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'Sir Ronald Aylmer Fisher' @ fisher.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 & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267362&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]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=267362&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267362&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'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.760.77620.74770.4645
AMS1 excluded0.79710.80130.74580.5735
AMS8 excluded0.66890.68560.62320.4209
AMS15 excluded0.71320.73520.67770.4806
AMS22 excluded0.63480.65050.56370.3829

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.76 & 0.7762 & 0.7477 & 0.4645 \tabularnewline
AMS1 excluded & 0.7971 & 0.8013 & 0.7458 & 0.5735 \tabularnewline
AMS8 excluded & 0.6689 & 0.6856 & 0.6232 & 0.4209 \tabularnewline
AMS15 excluded & 0.7132 & 0.7352 & 0.6777 & 0.4806 \tabularnewline
AMS22 excluded & 0.6348 & 0.6505 & 0.5637 & 0.3829 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267362&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]0.76[/C][C]0.7762[/C][C]0.7477[/C][C]0.4645[/C][/ROW]
[ROW][C]AMS1 excluded[/C][C]0.7971[/C][C]0.8013[/C][C]0.7458[/C][C]0.5735[/C][/ROW]
[ROW][C]AMS8 excluded[/C][C]0.6689[/C][C]0.6856[/C][C]0.6232[/C][C]0.4209[/C][/ROW]
[ROW][C]AMS15 excluded[/C][C]0.7132[/C][C]0.7352[/C][C]0.6777[/C][C]0.4806[/C][/ROW]
[ROW][C]AMS22 excluded[/C][C]0.6348[/C][C]0.6505[/C][C]0.5637[/C][C]0.3829[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=267362&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267362&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 itmes0.760.77620.74770.4645
AMS1 excluded0.79710.80130.74580.5735
AMS8 excluded0.66890.68560.62320.4209
AMS15 excluded0.71320.73520.67770.4806
AMS22 excluded0.63480.65050.56370.3829


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')