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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, 13 Dec 2014 22:01:00 +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/2014/Dec/13/t1418508075wz5q4nqicy83t46.htm/, Retrieved Thu, 16 May 2024 22:19:03 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=267298, Retrieved Thu, 16 May 2024 22:19:03 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact81

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Survey Scores] [Paper EM1 2012] [2014-12-13 15:16:56] [81f624c2f0b20a2549c93e7c3dccf981]
- RMPD    [Cronbach Alpha] [CA E2 2011] [2014-12-13 22:01:00] [64070895b9a6ba473199a431c837c7d3] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
1	-2	-2	-1
1	1	1	1
0	-2	-1	1
3	2	2	2
0	-2	0	1
1	1	1	1
2	1	1	1
1	-2	-1	1
3	3	3	3
0	-3	-2	0
2	1	1	2
3	0	2	1
3	2	3	3
3	2	1	2
1	2	2	2
2	2	2	2
2	1	1	1
2	0	0	2
1	0	1	1
3	3	0	3
2	-2	-1	1
3	0	3	2
2	1	1	1
2	0	2	2
2	2	2	3
1	2	2	2
2	0	1	1
2	-1	1	3
2	2	0	2
3	2	2	2
3	0	1	3
2	-1	1	1
2	0	1	2
2	-3	2	2
3	1	2	3
2	-2	1	-1
3	1	1	3
2	2	2	2
2	-1	0	1
3	3	3	3
1	-3	0	1
1	-2	1	1
1	0	1	0
3	2	2	3
0	0	0	2
3	-1	2	2
2	-1	0	2
3	-2	-2	2
2	3	3	2
3	1	-2	3
3	2	3	2
1	1	1	2
-3	-2	0	1
2	-2	2	2
1	1	1	1
2	2	2	2
2	2	2	2
1	1	2	2
3	-3	2	3
2	-1	1	2
3	2	2	0
1	3	-1	0
3	1	1	3
3	-2	1	3
1	-1	-2	2
1	0	0	0
3	1	1	2
2	-1	1	2
2	-2	1	2
2	-1	0	1
1	0	-1	2
2	1	0	2
1	2	1	0
1	-1	0	1
3	1	2	3
2	-3	-1	1
0	-1	0	2
1	-1	0	1
3	1	1	3
2	0	0	3
1	2	2	1
2	0	-1	1
3	1	0	2
2	1	1	0
1	1	1	2
1	1	1	2
2	1	0	1
1	-1	1	1
3	2	2	2
2	2	1	2
3	1	0	1
1	1	1	1
2	1	1	1
2	0	0	2
2	1	1	2
2	-1	-2	0
2	2	2	2
2	2	0	2
1	1	2	1
1	0	0	0
3	0	1	3
2	1	1	2
2	2	1	2
0	-3	1	2
1	-3	1	3
3	1	2	3
1	-2	1	2
-1	-1	-3	3
1	2	1	0
0	1	1	1
2	-3	1	2
2	1	1	2
2	2	-1	2

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'Sir Ronald Aylmer Fisher' @ fisher.wessa.net

\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 & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267298&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]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=267298&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267298&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'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.6450.66790.6160.3346
AMS7 excluded0.54720.56110.47730.2988
AMS14 excluded0.61910.62860.5340.3607
AMS21 excluded0.51820.56950.48590.306
AMS28 excluded0.62160.64080.54560.3729

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.645 & 0.6679 & 0.616 & 0.3346 \tabularnewline
AMS7 excluded & 0.5472 & 0.5611 & 0.4773 & 0.2988 \tabularnewline
AMS14 excluded & 0.6191 & 0.6286 & 0.534 & 0.3607 \tabularnewline
AMS21 excluded & 0.5182 & 0.5695 & 0.4859 & 0.306 \tabularnewline
AMS28 excluded & 0.6216 & 0.6408 & 0.5456 & 0.3729 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267298&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]0.645[/C][C]0.6679[/C][C]0.616[/C][C]0.3346[/C][/ROW]
[ROW][C]AMS7 excluded[/C][C]0.5472[/C][C]0.5611[/C][C]0.4773[/C][C]0.2988[/C][/ROW]
[ROW][C]AMS14 excluded[/C][C]0.6191[/C][C]0.6286[/C][C]0.534[/C][C]0.3607[/C][/ROW]
[ROW][C]AMS21 excluded[/C][C]0.5182[/C][C]0.5695[/C][C]0.4859[/C][C]0.306[/C][/ROW]
[ROW][C]AMS28 excluded[/C][C]0.6216[/C][C]0.6408[/C][C]0.5456[/C][C]0.3729[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=267298&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267298&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 itmes0.6450.66790.6160.3346
AMS7 excluded0.54720.56110.47730.2988
AMS14 excluded0.61910.62860.5340.3607
AMS21 excluded0.51820.56950.48590.306
AMS28 excluded0.62160.64080.54560.3729


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
Parameters (R input):
par1 = TRUE ;
R code (references can be found in the software module):
library(psych)
par1b <- T
if(par1=='FALSE') par1b <- F
z <- t(y)
(r <- alpha(z,check.keys=par1b))
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')