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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 computationThu, 18 Dec 2014 14:48:57 +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/18/t1418914144nbjw0trn4oexavy.htm/, Retrieved Fri, 17 May 2024 14:01:30 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=271022, Retrieved Fri, 17 May 2024 14:01:30 +0000
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Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact94

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [E3: Extrinsic mot...] [2014-12-18 14:48:57] [f02c6c9412fee5ce04bac553459224aa] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
6 4 6 4
6 5 5 2
5 6 5 5
4 5 7 7
7 7 6 7
5 5 5 5
5 5 6 5
6 6 6 6
6 5 5 5
6 7 5 7
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
6 7 7 7
6 7 5 6
7 4 5 5
4 5 6 4
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
1 5 6 5
5 7 6 7
5 5 5 4
4 4 4 2
6 7 6 6
4 7 7 7
2 3 5 5
7 6 6 6
4 6 7 7
7 7 7 7
7 6 5 6
7 7 5 7
5 6 7 7
5 7 7 7
3 6 5 6
6 7 7 6
4 6 6 5
5 6 6 6
5 6 7 7
5 6 6 6
4 6 6 6
7 7 7 7
6 6 6 6
2 2 5 5
6 6 3 5
7 7 7 7
6 6 7 7
6 6 6 7
6 6 6 6
6 6 6 6
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 6 6 6
5 6 7 6
3 4 3 5
7 7 6 7
4 6 6 7
5 6 6 6
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
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
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
4 4 5 4
6 7 6 7
5 6 5 6
2 5 5 5
2 5 4 5
3 5 5 5
4 4 4 5
6 7 5 7
6 5 5 5
7 7 6 7
5 6 6 6
2 2 2 2
4 7 6 5
7 7 7 7
7 6 6 5
5 6 7 7
5 6 6 6
5 7 7 7
6 6 5 5
3 5 6 6
3 7 6 6
5 7 7 7
5 5 6 5
5 5 6 5
4 7 6 7
4 5 4 5
6 7 7 6
5 6 6 6
6 7 6 6
5 5 5 5
5 7 7 7
2 6 5 6
5 5 6 5
6 7 5 6
1 3 1 1
5 5 5 6
2 5 5 5
3 7 4 5
6 6 6 6
5 5 5 6
5 6 5 5
6 7 7 6
5 7 6 6
5 6 6 6
7 5 7 7
5 5 5 5
6 6 7 6
4 4 6 5
6 5 6 6
4 5 5 4
6 6 6 6
3 5 3 5
6 6 5 6
4 6 4 4
6 6 5 7
5 7 6 6
6 6 6 7
6 6 7 7
1 3 6 4
6 6 5 6
5 6 6 6
6 6 5 6
5 7 6 7
5 4 4 4
6 6 6 6
6 7 7 7
4 6 5 7
5 6 6 6
5 6 7 6
6 7 7 6
6 6 6 5
5 7 7 6
6 7 7 7
5 6 6 6
4 7 7 7
5 6 7 6
5 5 4 5
7 7 7 7
5 7 6 6
6 6 7 6
7 7 7 7
3 4 4 4
6 7 7 7
7 5 6 6
2 6 5 6
5 7 4 7
5 6 4 6
4 6 6 6
2 7 6 6
5 5 6 5
6 6 6 7
5 6 5 5
4 6 5 5
6 7 7 7
7 7 7 7
6 6 6 6
7 6 7 7
6 5 6 6
5 5 6 5
4 6 5 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
3 7 6 7
4 5 5 4
4 6 6 6
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 7 7 7
6 6 5 5
6 5 6 5
5 6 6 6
5 6 7 7
2 4 4 4
5 6 5 6
6 6 6 6
7 7 7 7
6 6 6 6
5 7 7 7
5 7 7 7
4 4 2 2
6 6 6 6
7 7 6 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
5 6 5 6
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
6 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
5 6 5 6
5 7 4 5
7 7 7 7
5 5 5 4
6 7 7 7
4 3 6 4
4 6 6 4
6 6 6 6
7 4 4 5
6 7 6 6
5 7 7 6
6 7 6 7
5 5 4 5
5 6 6 6
6 7 6 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 5 6
5 5 6 5
6 7 7 7
7 7 7 7
5 7 5 7
3 6 6 6
5 5 4 4
4 6 7 7
5 5 5 5
6 7 6 6
4 7 5 7
4 7 7 7
6 7 7 6
6 5 6 6
3 5 5 5
6 6 6 6
6 7 6 6
6 7 7 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
5 5 4 4
5 6 5 6
5 6 5 5
7 6 6 6
3 6 6 7
4 7 6 6
6 7 6 6
6 7 6 6
4 5 5 5
6 6 5 7
5 7 5 5
5 5 5 5
7 7 6 6
7 7 7 7
4 6 6 6
5 6 4 5
5 7 7 6
5 5 2 4
6 7 6 4
5 6 5 5
4 5 5 5
2 6 6 6
6 7 7 7
6 6 7 7
6 6 5 6
7 7 7 7
5 6 6 6
6 7 7 7
4 6 5 3
3 5 7 6
6 7 7 6
7 7 7 7
3 6 3 6
4 5 5 5
5 7 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'Gertrude Mary Cox' @ cox.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 & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=271022&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]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=271022&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=271022&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'Gertrude Mary Cox' @ cox.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.7760.79090.76590.4861
AMS1 excluded0.81630.82010.76880.6031
AMS8 excluded0.69420.70890.65440.4481
AMS15 excluded0.71960.74080.68530.4879
AMS22 excluded0.65590.67150.58630.4053

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.776 & 0.7909 & 0.7659 & 0.4861 \tabularnewline
AMS1 excluded & 0.8163 & 0.8201 & 0.7688 & 0.6031 \tabularnewline
AMS8 excluded & 0.6942 & 0.7089 & 0.6544 & 0.4481 \tabularnewline
AMS15 excluded & 0.7196 & 0.7408 & 0.6853 & 0.4879 \tabularnewline
AMS22 excluded & 0.6559 & 0.6715 & 0.5863 & 0.4053 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=271022&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]0.776[/C][C]0.7909[/C][C]0.7659[/C][C]0.4861[/C][/ROW]
[ROW][C]AMS1 excluded[/C][C]0.8163[/C][C]0.8201[/C][C]0.7688[/C][C]0.6031[/C][/ROW]
[ROW][C]AMS8 excluded[/C][C]0.6942[/C][C]0.7089[/C][C]0.6544[/C][C]0.4481[/C][/ROW]
[ROW][C]AMS15 excluded[/C][C]0.7196[/C][C]0.7408[/C][C]0.6853[/C][C]0.4879[/C][/ROW]
[ROW][C]AMS22 excluded[/C][C]0.6559[/C][C]0.6715[/C][C]0.5863[/C][C]0.4053[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=271022&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=271022&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 itmes0.7760.79090.76590.4861
AMS1 excluded0.81630.82010.76880.6031
AMS8 excluded0.69420.70890.65440.4481
AMS15 excluded0.71960.74080.68530.4879
AMS22 excluded0.65590.67150.58630.4053


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
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')