FreeStatistics.org

Free Statistics

of Irreproducible Research!

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 21:56:19 +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/t1418507789wrnhlm2yj9zhk5g.htm/, Retrieved Thu, 16 May 2024 13:19:57 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=267294, Retrieved Thu, 16 May 2024 13:19:57 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact71

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 I3 2011] [2014-12-13 21:56:19] [64070895b9a6ba473199a431c837c7d3] [Current]
Feedback Forum

Post a new message

Dataset

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

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' @ yule.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 & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267294&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' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=267294&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267294&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' @ yule.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.82680.82790.80370.546
AMS4 excluded0.86070.86210.81250.6757
AMS11 excluded0.74290.74340.68370.4912
AMS18 excluded0.72880.72970.66540.4736
AMS25 excluded0.780.78120.74130.5434

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8268 & 0.8279 & 0.8037 & 0.546 \tabularnewline
AMS4 excluded & 0.8607 & 0.8621 & 0.8125 & 0.6757 \tabularnewline
AMS11 excluded & 0.7429 & 0.7434 & 0.6837 & 0.4912 \tabularnewline
AMS18 excluded & 0.7288 & 0.7297 & 0.6654 & 0.4736 \tabularnewline
AMS25 excluded & 0.78 & 0.7812 & 0.7413 & 0.5434 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267294&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]0.8268[/C][C]0.8279[/C][C]0.8037[/C][C]0.546[/C][/ROW]
[ROW][C]AMS4 excluded[/C][C]0.8607[/C][C]0.8621[/C][C]0.8125[/C][C]0.6757[/C][/ROW]
[ROW][C]AMS11 excluded[/C][C]0.7429[/C][C]0.7434[/C][C]0.6837[/C][C]0.4912[/C][/ROW]
[ROW][C]AMS18 excluded[/C][C]0.7288[/C][C]0.7297[/C][C]0.6654[/C][C]0.4736[/C][/ROW]
[ROW][C]AMS25 excluded[/C][C]0.78[/C][C]0.7812[/C][C]0.7413[/C][C]0.5434[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=267294&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267294&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 itmes0.82680.82790.80370.546
AMS4 excluded0.86070.86210.81250.6757
AMS11 excluded0.74290.74340.68370.4912
AMS18 excluded0.72880.72970.66540.4736
AMS25 excluded0.780.78120.74130.5434


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = TRUE ;
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')