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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, 04 Dec 2010 10:32:08 +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/Dec/04/t129145864074bx1nw22kw3ssy.htm/, Retrieved Sun, 05 May 2024 08:16:23 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=105076, Retrieved Sun, 05 May 2024 08:16:23 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact178

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 11:46:14] [b98453cac15ba1066b407e146608df68]
-    D  [Cronbach Alpha] [WS3 - Task 2- Ext...] [2010-10-19 17:10:12] [19f9551d4d95750ef21e9f3cf8fe2131]
- R  D    [Cronbach Alpha] [p_Stress_CA1Bel] [2010-12-04 09:09:44] [19f9551d4d95750ef21e9f3cf8fe2131]
-    D      [Cronbach Alpha] [p_Stress_CA2Verwa...] [2010-12-04 09:17:09] [19f9551d4d95750ef21e9f3cf8fe2131]
-    D        [Cronbach Alpha] [p_Stress_CA3Dep] [2010-12-04 10:17:30] [19f9551d4d95750ef21e9f3cf8fe2131]
-    D            [Cronbach Alpha] [p_Stress_CA4Alc] [2010-12-04 10:32:08] [fca744d17b21beb005bf086e7071b2bb] [Current]
-    D              [Cronbach Alpha] [p_Stress_CA6Eten] [2010-12-06 23:55:50] [19f9551d4d95750ef21e9f3cf8fe2131]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time4 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 & 4 seconds \tabularnewline
R Server & 'George Udny Yule' @ 72.249.76.132 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=105076&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]4 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=105076&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=105076&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 time4 seconds
R Server'George Udny Yule' @ 72.249.76.132






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.7090.71540.63030.4559
Q43_10 excluded0.67450.67760.51240.5124
Q43_11 excluded0.61820.6260.45570.4557
Q43_12 excluded0.56990.5710.39960.3996

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.709 & 0.7154 & 0.6303 & 0.4559 \tabularnewline
Q43_10 excluded & 0.6745 & 0.6776 & 0.5124 & 0.5124 \tabularnewline
Q43_11 excluded & 0.6182 & 0.626 & 0.4557 & 0.4557 \tabularnewline
Q43_12 excluded & 0.5699 & 0.571 & 0.3996 & 0.3996 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=105076&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]0.709[/C][C]0.7154[/C][C]0.6303[/C][C]0.4559[/C][/ROW]
[ROW][C]Q43_10 excluded[/C][C]0.6745[/C][C]0.6776[/C][C]0.5124[/C][C]0.5124[/C][/ROW]
[ROW][C]Q43_11 excluded[/C][C]0.6182[/C][C]0.626[/C][C]0.4557[/C][C]0.4557[/C][/ROW]
[ROW][C]Q43_12 excluded[/C][C]0.5699[/C][C]0.571[/C][C]0.3996[/C][C]0.3996[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=105076&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=105076&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 itmes0.7090.71540.63030.4559
Q43_10 excluded0.67450.67760.51240.5124
Q43_11 excluded0.61820.6260.45570.4557
Q43_12 excluded0.56990.5710.39960.3996


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')