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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, 17 Dec 2014 15:57:15 +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/17/t1418831842xdivh9bqzvvlsqk.htm/, Retrieved Thu, 16 May 2024 11:41:04 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270455, Retrieved Thu, 16 May 2024 11:41:04 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact75

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]
- RMPD    [Cronbach Alpha] [] [2014-12-17 15:57:15] [1d338d9433eb3ecdb4d9d35f41140a45] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
2	2	1	2
5	5	5	5
1	2	3	3
5	4	5	5
3	3	3	3
4	4	4	4
5	4	5	3
3	2	2	2
7	7	7	7
6	6	6	2
5	3	5	3
4	6	6	6
3	5	4	5
3	3	3	3
2	5	5	6
5	5	5	5
3	3	3	3
4	4	4	4
3	4	4	5
7	4	4	6
6	3	3	3
5	4	4	4
4	5	4	4
4	3	4	6
5	4	4	5
4	4	3	4
6	6	3	5
5	3	2	3
6	5	5	5
4	2	4	2
1	3	1	1
4	4	2	3
5	5	4	5
4	1	1	6
4	4	3	3
2	3	5	3
2	4	3	3
4	4	4	5
4	5	5	5
2	3	2	3
2	3	2	3
2	3	3	3
2	3	3	3
2	4	2	2
2	2	1	2
4	6	6	6
4	2	2	4
5	4	5	4
4	5	5	6
2	2	3	2
3	4	4	5
3	4	4	3
4	2	2	3
5	5	5	5
3	4	4	6
2	4	4	4
2	2	2	2
4	4	4	4
3	3	2	3
3	2	3	2
2	4	3	6
2	5	3	5
5	2	2	1
4	2	2	2
4	4	5	5
3	3	2	2
6	5	5	6
5	2	5	4
2	2	1	5
4	1	1	1
5	4	3	4
3	4	4	5
4	4	3	5
5	6	5	6
2	1	1	1
5	5	5	3
2	3	2	3
2	1	2	3
3	4	4	5
2	2	2	2
6	3	3	4
4	3	3	4
4	3	4	4
1	3	3	2
5	5	6	5
2	1	2	2
4	4	4	5
3	5	5	5
4	4	3	5
3	4	4	5
4	3	3	4
5	3	3	4
2	2	2	2
3	6	6	7
2	1	1	1
7	2	2	2
6	5	5	6
4	5	5	4
3	4	3	5
2	3	3	3
4	5	4	6
5	4	5	5
5	5	5	6
1	1	1	1
3	5	5	4
2	2	2	4
4	2	3	4
4	7	2	2
6	2	1	2
6	6	4	4
3	4	4	2
5	4	4	5
5	5	6	4
4	3	4	4
1	1	1	1
3	2	2	2
4	4	4	6
3	4	2	3
6	2	3	6
4	3	3	2
6	4	3	3
4	5	4	4
4	3	3	4
4	3	3	3
5	5	5	5
4	4	4	4
5	3	3	4
2	3	2	3
4	4	4	4
5	5	6	5
3	4	4	4
6	2	4	4
5	4	5	5
2	4	1	2
5	4	5	5
2	2	1	2
7	5	5	6
3	3	4	4
4	2	2	2
4	4	4	4
4	2	2	4
3	2	2	3
3	2	1	1
4	6	5	5
3	2	2	2
5	2	2	3
4	2	2	2
3	5	4	7
1	2	3	5
5	3	2	5
3	4	4	3
3	3	3	2
2	5	3	4
4	4	3	4
1	2	2	2
5	6	5	6
5	6	4	4
7	4	4	7
2	5	2	2
4	5	5	5
2	2	2	3
2	3	3	3
5	5	3	4
3	2	2	5
5	4	4	4
3	2	2	3
6	5	3	3
4	2	3	4
4	2	2	3
4	6	6	3
3	6	6	6
7	6	5	6
4	3	3	3
4	4	4	4
3	3	3	4
3	4	4	4
5	3	3	4
2	3	2	4
1	2	1	3
3	4	3	3
5	3	2	3
3	3	2	4
2	3	2	1
1	2	2	2
4	4	4	5
4	1	2	2
5	4	4	5
5	4	4	4
5	4	4	4
5	4	4	5
3	4	3	2
3	4	4	3
3	6	6	7
3	6	5	5
6	4	6	5
3	3	2	2
4	4	4	4
5	2	2	2
4	4	3	4
2	3	3	4
5	5	5	6
6	7	6	3
5	5	5	5
5	4	3	3
3	2	2	2
5	4	3	3
5	3	4	2
3	2	2	4
1	2	2	4
4	3	2	3
4	2	1	4
3	4	3	4
3	3	1	3
5	5	4	4
4	2	1	4
2	3	4	5
2	4	4	6
2	3	2	4
2	5	4	5
2	4	3	4
3	3	3	3
4	4	5	4
5	6	6	6
4	2	3	5
3	2	2	3
4	4	4	4
3	2	2	4
4	4	4	4
5	5	4	5
4	4	4	5
3	3	3	3
5	3	3	6
4	4	2	1
4	5	5	5
4	3	2	3
2	2	2	2
5	4	3	5
5	4	2	2
6	4	2	5
4	1	1	1
6	6	5	6
6	4	4	4
4	3	2	4
5	3	4	5
3	3	3	4
3	3	2	5
2	2	3	1
4	4	3	5
5	3	3	3
3	2	6	2
5	5	5	4
3	4	3	5
5	3	3	4
1	2	2	3
5	3	2	4
3	1	2	1
2	2	4	3
5	3	4	5
4	5	4	6
6	4	3	4
3	2	2	5
3	3	3	3
4	5	4	5
4	4	4	4
6	3	3	3
5	5	5	5
5	4	3	4
3	4	3	2
4	3	1	2
7	7	7	7
4	4	5	6
5	4	4	5
4	5	5	5
2	1	1	4
3	4	5	5
5	4	3	4
5	4	4	5
3	4	2	3
4	4	4	5
2	5	4	2
5	4	4	5
0	4	5	4
1	1	2	2
2	5	1	2
5	2	2	3
2	4	2	2
6	3	2	2
3	4	4	4
2	3	1	2
1	1	1	1
1	1	1	1
2	2	2	3
3	2	2	3
3	4	3	2
6	5	5	5
3	1	1	1
4	2	2	3
4	1	1	4
5	4	3	4
3	3	3	3
3	2	4	3
4	1	1	5
3	3	3	5
3	1	2	5
5	5	4	5
4	4	4	4
3	5	4	4
4	1	4	2
2	5	2	3
3	2	2	1
3	2	2	2
4	4	3	3
2	3	3	5
1	1	2	3
6	5	1	5
4	1	2	1
3	2	2	2
2	5	4	4
2	3	3	3
2	7	6	5
3	2	4	4
1	2	2	2
2	2	1	3
5	5	5	5
2	4	4	5
5	4	5	5
6	1	5	5
5	6	3	4
4	5	5	5
2	1	1	1
2	2	3	4
4	3	2	4
3	1	2	2
4	6	5	4
3	2	4	5
4	7	7	6
3	3	2	3
3	1	4	4
4	1	1	3
2	3	3	2
7	5	5	5
5	4	4	5
3	2	2	1
3	4	4	4
4	2	2	2
2	2	2	4
5	5	5	5
4	4	4	5
3	3	3	3
4	5	4	4
3	3	2	2
6	3	2	4
3	3	4	4
1	3	2	2
4	4	4	5
1	5	2	2
6	3	3	4
3	3	3	4
4	4	5	4
4	4	4	4
3	4	3	3
3	4	3	4
2	1	1	2
4	4	4	4
6	3	3	6
3	4	5	4
5	4	3	3
4	4	5	5
5	4	6	5
5	4	5	5
4	5	3	4
3	3	2	3
7	6	6	5
3	3	3	4
5	4	3	5
4	4	3	3
2	4	5	5
3	5	5	5
4	5	3	4
4	3	4	5
4	1	2	2
2	1	1	1
4	3	2	2
2	2	4	2
4	4	4	4
4	3	4	6
4	4	3	4
3	3	1	6
4	3	2	3
2	4	4	2
4	4	4	4
4	6	6	6
5	6	3	5
6	6	6	5
1	1	2	2
6	4	5	4
1	3	1	2
2	3	2	2
5	4	3	4
6	5	4	4
3	1	1	3
4	4	3	4
3	2	2	3
4	5	4	5
4	4	5	6
3	3	4	2
4	5	4	3
3	3	3	3
4	5	5	6
4	5	5	5
4	2	1	3
4	4	4	4
3	3	3	3
4	3	5	3
5	3	5	2
4	5	4	4
3	3	3	4
4	3	4	3
4	4	5	5
1	1	1	1
4	3	2	2
2	5	2	1
2	1	2	2
5	4	5	6
2	3	4	1
3	5	5	5
4	2	3	5
4	3	2	2
3	4	2	3
4	4	4	4
5	5	4	5
5	5	3	5
4	5	4	3
2	4	2	1
5	3	3	4
4	3	3	4
4	5	5	3
6	2	3	3
2	3	3	3
6	2	2	1
4	5	5	5
6	6	6	7
6	4	5	5
5	2	4	4
4	5	4	4
4	3	1	2
7	6	6	5
4	6	4	2
5	1	1	2
4	3	4	5
2	1	2	3
5	1	4	1
5	3	3	2
5	3	3	3
5	2	1	4
3	4	3	4
4	4	4	4
4	5	4	6
5	3	3	6
5	4	5	6
3	3	2	3
5	5	4	5
2	1	1	2
4	4	4	4
5	3	3	3
4	4	2	4
4	3	4	5
3	3	2	3
5	4	2	3
4	4	4	4
6	5	5	6
2	2	1	2
4	5	4	4
4	5	3	4
4	5	4	5
6	5	5	6
2	4	4	3
4	4	2	1
5	5	4	5
5	3	3	3
4	3	3	5
4	4	4	3
1	5	4	5
5	3	2	5
5	5	4	5
5	6	5	6
3	5	5	5
4	2	2	2

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'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 & 1 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270455&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]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270455&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270455&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'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.80850.80870.77860.5138
Q4 excluded0.83310.83380.77750.6257
Q11 excluded0.7370.73690.6680.4828
Q18 excluded0.71010.70970.63030.449
Q25 excluded0.74790.74820.69980.4976

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8085 & 0.8087 & 0.7786 & 0.5138 \tabularnewline
Q4 excluded & 0.8331 & 0.8338 & 0.7775 & 0.6257 \tabularnewline
Q11 excluded & 0.737 & 0.7369 & 0.668 & 0.4828 \tabularnewline
Q18 excluded & 0.7101 & 0.7097 & 0.6303 & 0.449 \tabularnewline
Q25 excluded & 0.7479 & 0.7482 & 0.6998 & 0.4976 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270455&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]0.8085[/C][C]0.8087[/C][C]0.7786[/C][C]0.5138[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.8331[/C][C]0.8338[/C][C]0.7775[/C][C]0.6257[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.737[/C][C]0.7369[/C][C]0.668[/C][C]0.4828[/C][/ROW]
[ROW][C]Q18 excluded[/C][C]0.7101[/C][C]0.7097[/C][C]0.6303[/C][C]0.449[/C][/ROW]
[ROW][C]Q25 excluded[/C][C]0.7479[/C][C]0.7482[/C][C]0.6998[/C][C]0.4976[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270455&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270455&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 itmes0.80850.80870.77860.5138
Q4 excluded0.83310.83380.77750.6257
Q11 excluded0.7370.73690.6680.4828
Q18 excluded0.71010.70970.63030.449
Q25 excluded0.74790.74820.69980.4976


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)
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')