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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 15:57:01 +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/t141848624754mz0s1qzrrz8tl.htm/, Retrieved Thu, 16 May 2024 15:34:40 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=267174, Retrieved Thu, 16 May 2024 15:34:40 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact85

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [Paper CA EM1 2011] [2014-12-13 15:57:01] [64070895b9a6ba473199a431c837c7d3] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
5	5	4	4
7	6	5	5
5	6	5	6
6	5	5	6
5	5	5	4
7	7	6	5
7	7	7	7
3	5	3	5
7	7	7	7
6	5	4	6
5	5	6	6
7	6	5	6
5	7	6	6
7	7	6	6
7	7	7	7
6	6	6	6
6	6	5	3
7	7	6	6
4	6	6	5
7	7	7	7
7	7	6	7
6	5	6	6
6	6	6	6
7	6	4	7
6	6	5	5
5	5	5	6
7	4	7	7
6	5	4	5
4	6	6	5
7	6	6	7
6	6	5	6
6	5	5	5
7	7	6	7
7	6	6	6
6	5	6	6
6	7	6	6
7	7	3	6
5	6	4	4
4	7	5	6
5	7	6	6
5	5	4	5
3	6	6	6
7	7	7	6
6	7	6	6
5	7	6	7
4	6	7	6
5	5	3	4
7	7	7	7
5	6	7	7
5	5	5	5
6	6	7	6
6	4	5	6
6	6	6	6
7	7	7	7
5	6	4	5
4	5	5	5
6	6	6	6
6	5	5	5
7	5	6	6
6	6	5	6
4	5	3	6
6	7	7	7
5	6	7	7
5	5	4	6
5	5	6	5
6	6	5	6
7	7	7	6
6	5	6	7
6	7	7	7
6	7	6	5
6	5	6	6
6	7	5	6
5	6	5	5
5	6	6	6
7	7	7	6
6	6	6	6
6	6	6	7
5	5	4	5
6	6	6	6
7	6	6	6
7	5	6	5
6	6	5	6
6	6	7	6
7	6	7	6
6	7	6	7
3	3	4	6
5	6	6	6
7	6	6	7
6	7	5	7
6	6	5	6
7	6	7	6
6	6	5	5
6	7	3	4
6	7	7	7
4	6	4	6
6	6	5	5
6	6	6	6
6	5	5	5
7	7	5	5
7	6	7	6
7	4	6	7
7	6	6	5
7	7	6	7
7	7	4	7
7	7	7	6
5	5	4	5
4	7	4	7
5	5	5	7
7	6	6	6
6	6	5	6
3	7	7	7
6	6	6	6
6	6	5	6

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 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 & 0 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267174&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]0 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=267174&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267174&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 time0 seconds
R Server'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.67270.67570.62210.3425
AMS3 excluded0.64930.65150.56520.3839
AMS10 excluded0.62490.62990.5510.362
AMS17 excluded0.53480.54170.44260.2826
AMS24 excluded0.60530.60870.51040.3415

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.6727 & 0.6757 & 0.6221 & 0.3425 \tabularnewline
AMS3 excluded & 0.6493 & 0.6515 & 0.5652 & 0.3839 \tabularnewline
AMS10 excluded & 0.6249 & 0.6299 & 0.551 & 0.362 \tabularnewline
AMS17 excluded & 0.5348 & 0.5417 & 0.4426 & 0.2826 \tabularnewline
AMS24 excluded & 0.6053 & 0.6087 & 0.5104 & 0.3415 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=267174&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]0.6727[/C][C]0.6757[/C][C]0.6221[/C][C]0.3425[/C][/ROW]
[ROW][C]AMS3 excluded[/C][C]0.6493[/C][C]0.6515[/C][C]0.5652[/C][C]0.3839[/C][/ROW]
[ROW][C]AMS10 excluded[/C][C]0.6249[/C][C]0.6299[/C][C]0.551[/C][C]0.362[/C][/ROW]
[ROW][C]AMS17 excluded[/C][C]0.5348[/C][C]0.5417[/C][C]0.4426[/C][C]0.2826[/C][/ROW]
[ROW][C]AMS24 excluded[/C][C]0.6053[/C][C]0.6087[/C][C]0.5104[/C][C]0.3415[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=267174&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=267174&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 itmes0.67270.67570.62210.3425
AMS3 excluded0.64930.65150.56520.3839
AMS10 excluded0.62490.62990.5510.362
AMS17 excluded0.53480.54170.44260.2826
AMS24 excluded0.60530.60870.51040.3415


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):
par1 <- 'TRUE'
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')