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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, 15 Oct 2012 13:21:03 -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/2012/Oct/15/t1350321716ym79fx34z9bxwvk.htm/, Retrieved Tue, 07 May 2024 10:49:07 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=177521, Retrieved Tue, 07 May 2024 10:49:07 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact85

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]
- R  D    [Cronbach Alpha] [WS3: taak 2b] [2012-10-15 17:21:03] [933e9ab295d38e240eca0a457ef09371] [Current]
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Dataset

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

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=177521&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=177521&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=177521&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 itmes0.29820.34830.33490.1179
Q6 excluded0.25130.25510.2180.1024
Q13 excluded-0.0230.0360.04390.0123
Q20 excluded0.41770.4250.3390.1977
Q27 excluded0.29740.3620.32430.1591

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.2982 & 0.3483 & 0.3349 & 0.1179 \tabularnewline
Q6 excluded & 0.2513 & 0.2551 & 0.218 & 0.1024 \tabularnewline
Q13 excluded & -0.023 & 0.036 & 0.0439 & 0.0123 \tabularnewline
Q20 excluded & 0.4177 & 0.425 & 0.339 & 0.1977 \tabularnewline
Q27 excluded & 0.2974 & 0.362 & 0.3243 & 0.1591 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=177521&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]0.2982[/C][C]0.3483[/C][C]0.3349[/C][C]0.1179[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.2513[/C][C]0.2551[/C][C]0.218[/C][C]0.1024[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]-0.023[/C][C]0.036[/C][C]0.0439[/C][C]0.0123[/C][/ROW]
[ROW][C]Q20 excluded[/C][C]0.4177[/C][C]0.425[/C][C]0.339[/C][C]0.1977[/C][/ROW]
[ROW][C]Q27 excluded[/C][C]0.2974[/C][C]0.362[/C][C]0.3243[/C][C]0.1591[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=177521&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=177521&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 itmes0.29820.34830.33490.1179
Q6 excluded0.25130.25510.2180.1024
Q13 excluded-0.0230.0360.04390.0123
Q20 excluded0.41770.4250.3390.1977
Q27 excluded0.29740.3620.32430.1591


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')