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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 10:43:39 +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/t1291460574lshqxfzhw9rpu8d.htm/, Retrieved Sat, 04 May 2024 20:01:26 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=105095, Retrieved Sat, 04 May 2024 20:01:26 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact166

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_CA5Stress] [2010-12-04 10:43:39] [fca744d17b21beb005bf086e7071b2bb] [Current]
-    D              [Cronbach Alpha] [p_Stress_CA5Stressv2] [2010-12-20 23:28:37] [19f9551d4d95750ef21e9f3cf8fe2131]
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Dataset

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

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=105095&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=105095&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=105095&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 itmes-0.5108-0.5094-0.1188-0.0921
Q30_1 excluded-0.1971-0.14890.0537-0.0452
Q30_2 excluded-0.1422-0.1920.0127-0.0567
Q30_3 excluded-0.5052-0.5819-0.1565-0.1398
Q30_4 excluded-0.5968-0.5104-0.1065-0.1269

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & -0.5108 & -0.5094 & -0.1188 & -0.0921 \tabularnewline
Q30_1 excluded & -0.1971 & -0.1489 & 0.0537 & -0.0452 \tabularnewline
Q30_2 excluded & -0.1422 & -0.192 & 0.0127 & -0.0567 \tabularnewline
Q30_3 excluded & -0.5052 & -0.5819 & -0.1565 & -0.1398 \tabularnewline
Q30_4 excluded & -0.5968 & -0.5104 & -0.1065 & -0.1269 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=105095&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]-0.5108[/C][C]-0.5094[/C][C]-0.1188[/C][C]-0.0921[/C][/ROW]
[ROW][C]Q30_1 excluded[/C][C]-0.1971[/C][C]-0.1489[/C][C]0.0537[/C][C]-0.0452[/C][/ROW]
[ROW][C]Q30_2 excluded[/C][C]-0.1422[/C][C]-0.192[/C][C]0.0127[/C][C]-0.0567[/C][/ROW]
[ROW][C]Q30_3 excluded[/C][C]-0.5052[/C][C]-0.5819[/C][C]-0.1565[/C][C]-0.1398[/C][/ROW]
[ROW][C]Q30_4 excluded[/C][C]-0.5968[/C][C]-0.5104[/C][C]-0.1065[/C][C]-0.1269[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=105095&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=105095&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 itmes-0.5108-0.5094-0.1188-0.0921
Q30_1 excluded-0.1971-0.14890.0537-0.0452
Q30_2 excluded-0.1422-0.1920.0127-0.0567
Q30_3 excluded-0.5052-0.5819-0.1565-0.1398
Q30_4 excluded-0.5968-0.5104-0.1065-0.1269


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')