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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 computationMon, 08 Dec 2014 21:06:49 +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/08/t1418072899nv9qldh1cao8xs6.htm/, Retrieved Tue, 28 May 2024 10:54:30 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=264252, Retrieved Tue, 28 May 2024 10:54:30 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact91

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Survey Scores] [Survey Scores E1 ...] [2014-12-08 17:35:50] [81f624c2f0b20a2549c93e7c3dccf981]
- RMPD    [Cronbach Alpha] [paper] [2014-12-08 21:06:49] [e9c088684c75c49d5852bf7a76ea4083] [Current]
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Dataset

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

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=264252&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=264252&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264252&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 itmes0.81660.81890.77610.5307
Q2 excluded0.77680.78030.70590.5421
Q9 excluded0.78130.78260.71260.5454
Q16 excluded0.78060.78420.71040.5478
Q23 excluded0.73960.74040.65570.4873

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8166 & 0.8189 & 0.7761 & 0.5307 \tabularnewline
Q2 excluded & 0.7768 & 0.7803 & 0.7059 & 0.5421 \tabularnewline
Q9 excluded & 0.7813 & 0.7826 & 0.7126 & 0.5454 \tabularnewline
Q16 excluded & 0.7806 & 0.7842 & 0.7104 & 0.5478 \tabularnewline
Q23 excluded & 0.7396 & 0.7404 & 0.6557 & 0.4873 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=264252&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]0.8166[/C][C]0.8189[/C][C]0.7761[/C][C]0.5307[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.7768[/C][C]0.7803[/C][C]0.7059[/C][C]0.5421[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]0.7813[/C][C]0.7826[/C][C]0.7126[/C][C]0.5454[/C][/ROW]
[ROW][C]Q16 excluded[/C][C]0.7806[/C][C]0.7842[/C][C]0.7104[/C][C]0.5478[/C][/ROW]
[ROW][C]Q23 excluded[/C][C]0.7396[/C][C]0.7404[/C][C]0.6557[/C][C]0.4873[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=264252&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264252&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 itmes0.81660.81890.77610.5307
Q2 excluded0.77680.78030.70590.5421
Q9 excluded0.78130.78260.71260.5454
Q16 excluded0.78060.78420.71040.5478
Q23 excluded0.73960.74040.65570.4873


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')