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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 computationTue, 09 Dec 2014 10:12:10 +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/09/t1418119935gwhe2ws9uss68tw.htm/, Retrieved Thu, 16 May 2024 22:17:14 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=264394, Retrieved Thu, 16 May 2024 22:17:14 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact58

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 11:42:57] [b98453cac15ba1066b407e146608df68]
- RMPD    [Cronbach Alpha] [] [2014-12-09 10:12:10] [4448df9721b6d3ffbdda9a6b78484597] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
2	2	2	2
4	4	5	5
3	3	3	3
7	6	6	5
3	4	5	4
5	5	5	4
5	5	1	5
4	4	4	3
7	7	7	7
5	5	6	5
3	5	5	5
6	5	6	5
2	5	6	6
5	5	6	6
5	6	7	7
4	5	6	5
4	4	5	3
5	5	4	5
5	4	4	5
6	7	6	7
6	6	5	7
5	5	5	5
5	4	5	5
3	5	6	5
6	6	5	6
5	5	4	4
4	5	3	4
4	5	4	5
4	6	6	5
4	5	5	6
3	5	5	2
5	5	5	4
4	5	6	4
2	1	2	2
3	5	6	6
5	5	5	5
5	6	3	5
5	4	6	4
5	5	5	5
4	3	4	7
4	3	5	2
3	4	5	5
4	4	4	5
2	2	2	2
2	3	2	2
5	5	6	6
5	5	5	5
5	6	5	4
4	6	6	6
6	5	6	5
5	5	6	6
2	4	5	5
4	2	3	5
6	6	6	6
5	5	6	5
5	5	5	5
2	6	6	6
3	6	5	4
3	5	3	3
5	5	5	4
7	6	6	5
4	3	6	6
2	3	6	5
2	4	5	5
4	5	5	2
4	4	3	3
5	5	6	6
4	4	7	6
4	5	4	2
3	3	5	3
4	3	5	3
3	2	4	5
6	5	4	5
6	5	5	5
2	2	4	6
2	4	5	5
4	3	3	3
7	6	7	6
3	3	5	2
4	4	5	5
4	4	3	4
4	4	5	5
6	5	6	4
3	4	5	5
5	4	6	3
5	5	5	5
4	5	4	5
6	7	6	6
4	5	5	6
4	4	6	5
4	4	5	5
3	3	3	3
4	5	7	6
2	5	4	5
4	5	5	4
5	6	6	6
4	5	6	5
4	5	6	5
4	4	4	4
6	6	4	6
4	5	5	5
5	7	6	5
1	2	2	1
4	4	6	5
5	6	6	7
5	4	5	5
2	4	4	5
3	5	6	4
5	4	4	5
5	6	6	5
5	6	6	6
1	6	5	6
4	5	4	4
2	2	1	1
3	5	7	7
5	5	5	5
3	4	5	4
4	6	3	3
5	4	4	4
6	6	4	4
5	6	5	7
5	4	4	5
5	3	2	3
6	6	5	5
5	5	5	5
5	5	5	5
2	4	3	4
4	7	4	1
7	7	6	5
4	5	3	4
2	4	5	4
5	5	4	5
6	5	4	4
6	6	6	6
2	2	2	3
5	6	5	6
3	4	4	4
4	6	6	6
5	5	6	6
6	6	5	7
3	2	3	4
2	6	7	6
6	6	6	7
7	7	6	6
5	5	6	5
3	4	3	4
7	7	7	7
5	5	6	5
5	5	3	3
4	3	4	5
6	7	6	6
4	6	5	6
6	5	6	5
3	3	1	2
5	5	5	5
4	6	5	4
7	7	3	7
4	6	6	6
5	5	6	6
1	4	2	5
4	3	5	5
4	5	4	5
2	2	5	1
5	6	6	5
6	7	6	5
3	6	6	3
4	5	4	5
6	5	6	6
4	6	6	5
5	6	5	5
7	7	7	7
4	5	4	4
4	5	6	6
5	5	6	5
5	5	5	5
4	5	4	5
3	4	5	5
1	2	2	2
4	5	5	3
4	4	2	4
4	5	5	4
5	4	2	3
5	6	6	6
5	5	5	5
2	3	5	4
4	6	2	5
6	6	5	4
6	6	6	5
6	6	6	6
4	6	6	5
3	4	4	3
6	6	6	6
3	3	5	5
6	6	4	5
1	4	2	1
5	3	5	4
3	5	6	4
4	4	5	4
4	2	5	5
5	5	6	6
4	5	6	2
5	6	5	5
5	4	6	5
5	5	4	6
3	5	6	5
2	1	1	4
5	3	5	6
2	4	2	3
3	4	3	3
3	5	5	5
5	5	5	4
6	6	6	5
4	4	6	6
5	7	5	5
4	5	5	5
3	4	5	4
3	2	3	3
6	5	5	5
3	3	4	4
5	6	5	5
5	5	4	6
5	5	6	5
4	5	5	6
4	4	5	6
5	5	4	5
4	4	5	5
4	5	6	5
5	5	5	6
5	6	6	5
4	6	4	5
6	6	6	5
4	3	3	6
5	6	6	6
3	5	5	5
5	6	6	6
5	5	5	5
5	5	5	5
6	7	5	5
2	7	2	2
3	6	6	6
7	7	7	5
2	6	5	5
4	6	5	4
5	6	3	4
3	6	6	3
6	6	3	4
4	3	3	3
2	3	2	3
5	6	4	6
7	6	6	5
6	5	4	6
6	6	6	5
3	5	5	5
2	3	5	1
4	5	4	3
6	4	4	6
4	5	5	6
6	7	7	6
3	6	7	5
2	4	2	4
3	5	3	4
3	4	6	5
4	3	3	4
4	5	4	5
2	5	4	5
6	5	5	3
2	3	1	1
6	1	7	7
6	6	6	6
5	5	6	5
5	5	5	5
3	7	5	7
4	5	4	4
4	5	6	4
5	5	5	5
3	5	4	4
5	5	5	5
3	5	4	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=264394&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=264394&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264394&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 itmes0.79050.7910.74740.4862
Q6 excluded0.74810.74760.66790.4969
Q13 excluded0.73580.73670.65710.4826
Q20 excluded0.73820.73850.65590.4849
Q27 excluded0.73380.73520.65370.4807

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7905 & 0.791 & 0.7474 & 0.4862 \tabularnewline
Q6 excluded & 0.7481 & 0.7476 & 0.6679 & 0.4969 \tabularnewline
Q13 excluded & 0.7358 & 0.7367 & 0.6571 & 0.4826 \tabularnewline
Q20 excluded & 0.7382 & 0.7385 & 0.6559 & 0.4849 \tabularnewline
Q27 excluded & 0.7338 & 0.7352 & 0.6537 & 0.4807 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=264394&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]0.7905[/C][C]0.791[/C][C]0.7474[/C][C]0.4862[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.7481[/C][C]0.7476[/C][C]0.6679[/C][C]0.4969[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.7358[/C][C]0.7367[/C][C]0.6571[/C][C]0.4826[/C][/ROW]
[ROW][C]Q20 excluded[/C][C]0.7382[/C][C]0.7385[/C][C]0.6559[/C][C]0.4849[/C][/ROW]
[ROW][C]Q27 excluded[/C][C]0.7338[/C][C]0.7352[/C][C]0.6537[/C][C]0.4807[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=264394&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264394&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 itmes0.79050.7910.74740.4862
Q6 excluded0.74810.74760.66790.4969
Q13 excluded0.73580.73670.65710.4826
Q20 excluded0.73820.73850.65590.4849
Q27 excluded0.73380.73520.65370.4807


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 1 2 3 4 5 6 7 ;
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')