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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 computationSat, 27 Nov 2010 09:41:56 +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/Nov/27/t12908508517ax9fe9g7td5liu.htm/, Retrieved Mon, 29 Apr 2024 15:17:30 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=102331, Retrieved Mon, 29 Apr 2024 15:17:30 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact175

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] [cronbach alpha P&...] [2010-11-27 09:41:56] [6ff6d3268c67efbfcd6d6506b34b66fb] [Current]
- RMPD      [Survey Scores] [Popularity: quasi...] [2010-11-28 11:12:07] [c1a9f1d6a1a56eda57b5ddd6daa7a288]
-    D        [Survey Scores] [Paper: FindingFri...] [2010-11-28 11:37:20] [c1a9f1d6a1a56eda57b5ddd6daa7a288]
-    D        [Survey Scores] [Paper: Knowing Qu...] [2010-11-28 12:08:09] [c1a9f1d6a1a56eda57b5ddd6daa7a288]
-    D        [Survey Scores] [Paper: Liked Quas...] [2010-11-28 12:16:56] [c1a9f1d6a1a56eda57b5ddd6daa7a288]
-   PD        [Survey Scores] [Paper: Popularity...] [2010-11-28 12:35:35] [c1a9f1d6a1a56eda57b5ddd6daa7a288]
-   PD          [Survey Scores] [Paper: Popularity...] [2010-12-03 12:08:28] [c1a9f1d6a1a56eda57b5ddd6daa7a288]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 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 & 0 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=102331&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]0 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=102331&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=102331&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 time0 seconds
R Server'Gwilym Jenkins' @ 72.249.127.135






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.21830.12040.6380.0331
Q1 excluded-0.1744-0.35120.4381-0.0948
Q2 excluded-0.9875-1.2095-0.0034-0.2232
Q11 excluded-0.9048-1.03360.1594-0.204
Q16 excluded0.85070.85030.81870.6543

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.2183 & 0.1204 & 0.638 & 0.0331 \tabularnewline
Q1 excluded & -0.1744 & -0.3512 & 0.4381 & -0.0948 \tabularnewline
Q2 excluded & -0.9875 & -1.2095 & -0.0034 & -0.2232 \tabularnewline
Q11 excluded & -0.9048 & -1.0336 & 0.1594 & -0.204 \tabularnewline
Q16 excluded & 0.8507 & 0.8503 & 0.8187 & 0.6543 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=102331&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]0.2183[/C][C]0.1204[/C][C]0.638[/C][C]0.0331[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]-0.1744[/C][C]-0.3512[/C][C]0.4381[/C][C]-0.0948[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]-0.9875[/C][C]-1.2095[/C][C]-0.0034[/C][C]-0.2232[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]-0.9048[/C][C]-1.0336[/C][C]0.1594[/C][C]-0.204[/C][/ROW]
[ROW][C]Q16 excluded[/C][C]0.8507[/C][C]0.8503[/C][C]0.8187[/C][C]0.6543[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=102331&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=102331&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 itmes0.21830.12040.6380.0331
Q1 excluded-0.1744-0.35120.4381-0.0948
Q2 excluded-0.9875-1.2095-0.0034-0.2232
Q11 excluded-0.9048-1.03360.1594-0.204
Q16 excluded0.85070.85030.81870.6543


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')