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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 Nov 2010 21:01:02 +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/15/t12898549188thdtti6p6ci523.htm/, Retrieved Sun, 28 Apr 2024 08:37:36 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=95072, Retrieved Sun, 28 Apr 2024 08:37:36 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact144

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] [Chronbach Alpha p...] [2010-11-15 21:01:02] [9ea95e194e0eb2a674315798620d5bc6] [Current]
-    D      [Cronbach Alpha] [Chronbach alpha p...] [2010-11-15 21:07:03] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
-    D        [Cronbach Alpha] [Chronbach Alpha p...] [2010-11-15 21:09:15] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
-    D          [Cronbach Alpha] [Chronbach Alpha f...] [2010-11-15 21:24:10] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
-    D            [Cronbach Alpha] [Chronbach Alpha k...] [2010-11-15 21:26:11] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
-    D              [Cronbach Alpha] [Chronbach Alpha] [2010-11-15 21:27:57] [74be16979710d4c4e7c6647856088456]
-    D              [Cronbach Alpha] [Chronbach Alpha l...] [2010-11-15 21:27:57] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
-    D                [Cronbach Alpha] [Chronbach Alpha c...] [2010-11-15 21:29:32] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
-    D        [Cronbach Alpha] [Chronbach Alpha p...] [2010-12-07 19:04:03] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
3	3	3	2
3	3	3	3
4	3	4	3
3	3	3	3
2	2	2	3
3	2	3	3
4	4	4	2
2	2	2	3
3	3	3	3
4	2	2	4
3	4	2	3
3	3	2	3
4	3	4	2
2	2	0	3
2	3	3	3
3	2	2	3
2	3	3	3
4	3	4	3
2	2	2	2
1	3	2	4
3	2	3	3
4	3	4	2
2	3	3	3
3	2	3	3
3	3	4	2
4	3	4	2
3	4	2	4
3	3	3	2
4	3	3	3
4	2	4	2
4	2	4	4
3	4	3	3
4	4	3	2
3	3	2	3
2	3	2	3
4	4	4	1
3	3	3	3
2	2	2	3
4	3	3	3
4	4	4	2
4	3	4	3
4	3	2	0
2	2	1	5
2	2	2	4
3	3	2	3
4	4	4	2
5	4	4	2
2	2	2	3
3	3	3	4
3	3	3	2
2	3	2	3
2	2	1	4
3	4	3	3
2	3	2	4
4	4	4	3
3	3	3	3
3	3	4	4
4	4	4	2
1	1	4	4
4	4	4	2
2	2	1	4
4	3	4	2
4	3	4	3
4	3	4	2
2	3	1	3
4	4	4	3
2	2	3	3
4	2	3	3
4	4	4	2
1	1	1	4
4	4	4	2
4	4	3	3
3	3	3	4
3	2	2	2
3	3	3	3
3	3	3	3
3	3	3	3
3	3	4	3
4	4	3	2
1	2	1	4
3	3	0	4
4	3	3	2
3	3	4	2
3	2	3	4
4	2	4	3
3	3	3	3
2	2	2	3
3	3	3	3
4	3	4	2
3	3	3	4
4	3	4	3
3	4	3	4
4	4	4	2
4	4	4	2
3	3	3	3
2	2	2	3
1	3	1	3
2	2	2	4
2	3	2	2
3	3	3	3
4	4	4	2
4	3	4	2
3	3	5	3
3	2	2	3
1	1	1	5
3	3	3	2
3	3	3	4
4	4	4	3
2	2	2	4
2	0	2	4
3	3	2	3
3	4	3	3
3	3	3	3
4	4	4	3
4	4	4	2
4	3	4	2
4	3	4	2
2	3	2	2
3	3	3	1
4	3	3	2
3	3	3	3
4	3	4	3
2	3	3	4
4	4	4	3
4	3	4	2
3	2	3	3
4	4	4	2
3	3	3	3
3	3	3	3
1	1	1	5
4	4	4	2
4	3	4	2
2	2	2	3
3	2	2	1
4	4	4	3
3	3	3	3
4	4	4	3
2	2	2	4
5	4	5	1
3	4	3	2
4	3	4	4
3	3	3	2
4	3	4	2
2	2	2	4
3	3	3	3
3	3	1	3
2	3	2	4
0	4	5	1
4	4	4	2
4	3	4	2
3	3	3	3
4	4	4	2
2	2	2	3
4	3	4	3
4	4	4	3
3	2	3	3

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'George Udny Yule' @ 72.249.76.132

\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 & 'George Udny Yule' @ 72.249.76.132 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=95072&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]'George Udny Yule' @ 72.249.76.132[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=95072&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=95072&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'George Udny Yule' @ 72.249.76.132






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.25810.20170.52140.0594
Q1_2 excluded-0.4709-0.54120.0905-0.1326
Q1_6 excluded-0.2011-0.35670.2809-0.096
Q1_11 excluded-0.5-0.51650.1194-0.1281
Q1_16 excluded0.81250.81470.75240.5944

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.2581 & 0.2017 & 0.5214 & 0.0594 \tabularnewline
Q1_2 excluded & -0.4709 & -0.5412 & 0.0905 & -0.1326 \tabularnewline
Q1_6 excluded & -0.2011 & -0.3567 & 0.2809 & -0.096 \tabularnewline
Q1_11 excluded & -0.5 & -0.5165 & 0.1194 & -0.1281 \tabularnewline
Q1_16 excluded & 0.8125 & 0.8147 & 0.7524 & 0.5944 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=95072&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]0.2581[/C][C]0.2017[/C][C]0.5214[/C][C]0.0594[/C][/ROW]
[ROW][C]Q1_2 excluded[/C][C]-0.4709[/C][C]-0.5412[/C][C]0.0905[/C][C]-0.1326[/C][/ROW]
[ROW][C]Q1_6 excluded[/C][C]-0.2011[/C][C]-0.3567[/C][C]0.2809[/C][C]-0.096[/C][/ROW]
[ROW][C]Q1_11 excluded[/C][C]-0.5[/C][C]-0.5165[/C][C]0.1194[/C][C]-0.1281[/C][/ROW]
[ROW][C]Q1_16 excluded[/C][C]0.8125[/C][C]0.8147[/C][C]0.7524[/C][C]0.5944[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=95072&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=95072&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 itmes0.25810.20170.52140.0594
Q1_2 excluded-0.4709-0.54120.0905-0.1326
Q1_6 excluded-0.2011-0.35670.2809-0.096
Q1_11 excluded-0.5-0.51650.1194-0.1281
Q1_16 excluded0.81250.81470.75240.5944


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')