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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 17:15:30 +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/t14180590154vw0rb1zubl9a6q.htm/, Retrieved Sun, 19 May 2024 11:32:06 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=264110, Retrieved Sun, 19 May 2024 11:32:06 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact70

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [Crohnbach Alpha E...] [2014-12-08 17:15:30] [b8ae6979a6d5b032b20c00610b61657d] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
5 2 2 3
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 5 6
5 6 6 6
6 6 6 6
6 5 5 5
6 4 4 6
7 7 4 7
7 4 7 6
6 5 5 5
6 6 6 7
5 6 6 6
6 4 5 5
6 6 4 6
7 6 6 6
7 4 5 7
6 3 5 5
6 4 5 6
7 5 6 7
7 5 5 7
6 6 6 6
7 7 7 7
5 4 5 4
7 6 6 7
4 4 4 6
7 3 6 6
7 6 7 6
1 2 4 5
6 2 6 6
5 5 5 5
6 6 6 6
5 5 6 6
7 6 6 4
5 7 3 4
7 5 5 7
5 3 2 6
6 2 5 6
5 4 3 6
7 5 6 7
6 1 3 5
4 3 4 6
5 3 4 5
7 5 5 7
6 4 4 7
5 6 6 5
6 4 3 5
6 5 5 4
5 5 5 6
5 5 5 6
7 6 6 6
6 5 5 5
6 5 5 6
6 6 6 6
5 1 5 7
4 5 5 5
6 5 5 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 time0 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 & 0 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=264110&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]0 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=264110&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264110&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 time0 seconds
R Server'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.81050.81610.7940.526
Q7 excluded0.77060.77340.70390.5321
Q14 excluded0.78530.79310.73830.561
Q21 excluded0.75110.76480.70420.5201
Q28 excluded0.74310.7430.66610.4907

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8105 & 0.8161 & 0.794 & 0.526 \tabularnewline
Q7 excluded & 0.7706 & 0.7734 & 0.7039 & 0.5321 \tabularnewline
Q14 excluded & 0.7853 & 0.7931 & 0.7383 & 0.561 \tabularnewline
Q21 excluded & 0.7511 & 0.7648 & 0.7042 & 0.5201 \tabularnewline
Q28 excluded & 0.7431 & 0.743 & 0.6661 & 0.4907 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=264110&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]0.8105[/C][C]0.8161[/C][C]0.794[/C][C]0.526[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.7706[/C][C]0.7734[/C][C]0.7039[/C][C]0.5321[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.7853[/C][C]0.7931[/C][C]0.7383[/C][C]0.561[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.7511[/C][C]0.7648[/C][C]0.7042[/C][C]0.5201[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.7431[/C][C]0.743[/C][C]0.6661[/C][C]0.4907[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=264110&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264110&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 itmes0.81050.81610.7940.526
Q7 excluded0.77060.77340.70390.5321
Q14 excluded0.78530.79310.73830.561
Q21 excluded0.75110.76480.70420.5201
Q28 excluded0.74310.7430.66610.4907


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')