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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 computationWed, 10 Dec 2014 13:45:04 +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/10/t1418219115iylfqoz6xyyg743.htm/, Retrieved Sun, 19 May 2024 14:39:07 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=265175, Retrieved Sun, 19 May 2024 14:39:07 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact46

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Cronbach Alpha] [Intrinsic Motivat...] [2010-10-12 11:40:37] [b98453cac15ba1066b407e146608df68]
- R  D  [Cronbach Alpha] [] [2011-10-18 12:27:58] [b98453cac15ba1066b407e146608df68]
-    D    [Cronbach Alpha] [] [2011-10-18 12:29:27] [b98453cac15ba1066b407e146608df68]
-    D      [Cronbach Alpha] [] [2011-10-18 12:30:46] [b98453cac15ba1066b407e146608df68]
- RM D          [Cronbach Alpha] [] [2014-12-10 13:45:04] [2b74e5be20a95dee0bfccc444f4c1798] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
5	6	4	5
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	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	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
5	6	6	6
4	4	3	4
1	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
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	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
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 time3 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 & 3 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265175&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]3 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=265175&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265175&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 time3 seconds
R Server'Gwilym Jenkins' @ jenkins.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.75910.77460.74660.4622
Q1 excluded0.79660.8010.74580.573
Q8 excluded0.66680.68240.62010.4173
Q15 excluded0.7130.73370.67710.4788
Q22 excluded0.63260.64740.56070.3797

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7591 & 0.7746 & 0.7466 & 0.4622 \tabularnewline
Q1 excluded & 0.7966 & 0.801 & 0.7458 & 0.573 \tabularnewline
Q8 excluded & 0.6668 & 0.6824 & 0.6201 & 0.4173 \tabularnewline
Q15 excluded & 0.713 & 0.7337 & 0.6771 & 0.4788 \tabularnewline
Q22 excluded & 0.6326 & 0.6474 & 0.5607 & 0.3797 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265175&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]0.7591[/C][C]0.7746[/C][C]0.7466[/C][C]0.4622[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.7966[/C][C]0.801[/C][C]0.7458[/C][C]0.573[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.6668[/C][C]0.6824[/C][C]0.6201[/C][C]0.4173[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.713[/C][C]0.7337[/C][C]0.6771[/C][C]0.4788[/C][/ROW]
[ROW][C]Q22 excluded[/C][C]0.6326[/C][C]0.6474[/C][C]0.5607[/C][C]0.3797[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265175&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265175&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 itmes0.75910.77460.74660.4622
Q1 excluded0.79660.8010.74580.573
Q8 excluded0.66680.68240.62010.4173
Q15 excluded0.7130.73370.67710.4788
Q22 excluded0.63260.64740.56070.3797


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)
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')