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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 computationSun, 20 Oct 2013 14:07:42 -0400
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2013/Oct/20/t1382292476pwueusoztnbq9gj.htm/, Retrieved Sun, 05 May 2024 18:00:53 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=217166, Retrieved Sun, 05 May 2024 18:00:53 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact82

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] [Ws 1 vraag 2 i2] [2013-10-20 18:07:42] [a279f2be7dfac399bfd43e4361a95191] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'Gertrude Mary Cox' @ cox.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 & 2 seconds \tabularnewline
R Server & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=217166&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]2 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=217166&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=217166&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 time2 seconds
R Server'Gertrude Mary Cox' @ cox.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.74090.71880.73310.3899
Q1_11 excluded0.56240.53740.51760.2791
Q1_18 excluded0.55440.52490.50550.2691
Q1_25 excluded0.65470.62650.65770.3586
Q1_3 excluded0.84860.84940.80530.6528

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7409 & 0.7188 & 0.7331 & 0.3899 \tabularnewline
Q1_11 excluded & 0.5624 & 0.5374 & 0.5176 & 0.2791 \tabularnewline
Q1_18 excluded & 0.5544 & 0.5249 & 0.5055 & 0.2691 \tabularnewline
Q1_25 excluded & 0.6547 & 0.6265 & 0.6577 & 0.3586 \tabularnewline
Q1_3 excluded & 0.8486 & 0.8494 & 0.8053 & 0.6528 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=217166&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]0.7409[/C][C]0.7188[/C][C]0.7331[/C][C]0.3899[/C][/ROW]
[ROW][C]Q1_11 excluded[/C][C]0.5624[/C][C]0.5374[/C][C]0.5176[/C][C]0.2791[/C][/ROW]
[ROW][C]Q1_18 excluded[/C][C]0.5544[/C][C]0.5249[/C][C]0.5055[/C][C]0.2691[/C][/ROW]
[ROW][C]Q1_25 excluded[/C][C]0.6547[/C][C]0.6265[/C][C]0.6577[/C][C]0.3586[/C][/ROW]
[ROW][C]Q1_3 excluded[/C][C]0.8486[/C][C]0.8494[/C][C]0.8053[/C][C]0.6528[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=217166&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=217166&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 itmes0.74090.71880.73310.3899
Q1_11 excluded0.56240.53740.51760.2791
Q1_18 excluded0.55440.52490.50550.2691
Q1_25 excluded0.65470.62650.65770.3586
Q1_3 excluded0.84860.84940.80530.6528


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
Parameters (R input):
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')