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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, 19 Oct 2010 08:21:24 +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/2010/Oct/19/t1287476396z3g555r6hm3jzn8.htm/, Retrieved Mon, 29 Apr 2024 05:42:04 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=85886, Retrieved Mon, 29 Apr 2024 05:42:04 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact97

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]
-    D    [Cronbach Alpha] [] [2010-10-19 08:21:24] [8e16b01a5be2b3f7f3ad6418d9d6fd5b] [Current]
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Dataset

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

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' @ 72.249.127.135

\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' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=85886&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' @ 72.249.127.135[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=85886&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=85886&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' @ 72.249.127.135






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.72020.73120.69170.4048
Q7 excluded0.63660.64360.55450.3757
Q14 excluded0.72950.73720.66430.4833
Q21 excluded0.68170.69550.63660.4322
Q28 excluded0.58450.59420.50150.328

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7202 & 0.7312 & 0.6917 & 0.4048 \tabularnewline
Q7 excluded & 0.6366 & 0.6436 & 0.5545 & 0.3757 \tabularnewline
Q14 excluded & 0.7295 & 0.7372 & 0.6643 & 0.4833 \tabularnewline
Q21 excluded & 0.6817 & 0.6955 & 0.6366 & 0.4322 \tabularnewline
Q28 excluded & 0.5845 & 0.5942 & 0.5015 & 0.328 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=85886&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]0.7202[/C][C]0.7312[/C][C]0.6917[/C][C]0.4048[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.6366[/C][C]0.6436[/C][C]0.5545[/C][C]0.3757[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.7295[/C][C]0.7372[/C][C]0.6643[/C][C]0.4833[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.6817[/C][C]0.6955[/C][C]0.6366[/C][C]0.4322[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.5845[/C][C]0.5942[/C][C]0.5015[/C][C]0.328[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=85886&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=85886&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 itmes0.72020.73120.69170.4048
Q7 excluded0.63660.64360.55450.3757
Q14 excluded0.72950.73720.66430.4833
Q21 excluded0.68170.69550.63660.4322
Q28 excluded0.58450.59420.50150.328


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')