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Description of Statistical Computation

Author's title

Author*Unverified author*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationWed, 05 Dec 2018 17:33:59 +0100
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2018/Dec/05/t15440276934fsqrvuh8whwmlv.htm/, Retrieved Fri, 03 May 2024 20:29:23 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=315773, Retrieved Fri, 03 May 2024 20:29:23 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact105

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [] [2018-12-05 16:33:59] [d41d8cd98f00b204e9800998ecf8427e] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
2	3	2	1	1
3	2	2	1	1
2	6	2	1	1
3	3	2	2	2
2	5	4	7	1
2	5	2	1	2
2	7	5	1	1
2	4	3	1	1
3	6	4	1	1
2	3	4	1	1
1	3	2	1	1
2	6	2	3	2
3	3	1	1	1
2	3	2	1	1
1	7	7	2	1
1	7	5	1	1
2	2	5	1	1
2	3	3	2	2
1	5	1	1	1
2	3	4	3	2
2	5	6	1	1
1	7	2	1	1
2	3	3	1	1
2	2	2	1	1
3	3	3	3	2
2	6	7	1	1
3	1	2	3	2
3	2	3	1	1
1	5	3	1	1
3	4	4	1	2
3	3	3	2	2
2	2	5	1	1
2	3	1	1	1
1	4	5	7	1
1	6	5	1	1
2	6	3	2	1
1	7	1	2	2
3	7	3	1	1
3	2	3	3	1
1	3	3	2	3
2	3	3	5	3
2	2	3	3	1
2	2	3	6	2
3	4	3	2	2
5	3	3	3	2
3	5	4	3	2
1	3	2	1	1
2	1	2	1	1
1	6	2	2	2
2	3	5	2	2
3	2	2	1	2
3	7	4	1	1
5	4	7	1	2
2	3	2	2	2
3	5	5	1	1
2	2	6	2	2
2	2	1	2	1
2	4	2	1	1
2	2	2	1	1
1	6	7	1	1
1	7	2	1	1
2	4	3	3	1
2	5	4	3	1
5	5	5	6	1
5	2	7	4	4
5	3	2	4	1
2	3	2	1	1
2	2	4	3	3
6	2	3	6	4
2	6	5	1	1
5	3	4	3	2
2	6	2	2	1
2	6	4	1	1
3	2	7	6	4
2	6	2	5	1
2	6	3	1	1
3	4	4	3	3
2	3	4	4	2
1	1	1	6	2
2	2	2	4	3
2	4	3	1	1
5	7	4	6	6
4	5	4	3	2
3	4	2	4	2
2	2	4	2	1
2	7	3	1	4
2	6	3	1	1
2	2	2	3	1
3	3	4	4	3
2	6	1	1	1

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R ServerBig Analytics Cloud Computing Center

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input view raw input (R code)  \tabularnewline
Raw Outputview raw output of R engine  \tabularnewline
Computing time2 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=315773&T=0

[TABLE]
[ROW]
Summary of computational transaction[/C][/ROW] [ROW]Raw Input[/C] view raw input (R code) [/C][/ROW] [ROW]Raw Output[/C]view raw output of R engine [/C][/ROW] [ROW]Computing time[/C]2 seconds[/C][/ROW] [ROW]R Server[/C]Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=315773&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=315773&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 Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R ServerBig Analytics Cloud Computing Center






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.49190.56640.56460.2071
q15 excluded0.35330.42640.43230.1567
q16 excluded0.55660.60980.57070.2809
q17 excluded0.5740.62960.58740.2982
q18 excluded0.30290.42370.4160.1553
q19 excluded0.35670.4030.38490.1444

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.4919 & 0.5664 & 0.5646 & 0.2071 \tabularnewline
q15 excluded & 0.3533 & 0.4264 & 0.4323 & 0.1567 \tabularnewline
q16 excluded & 0.5566 & 0.6098 & 0.5707 & 0.2809 \tabularnewline
q17 excluded & 0.574 & 0.6296 & 0.5874 & 0.2982 \tabularnewline
q18 excluded & 0.3029 & 0.4237 & 0.416 & 0.1553 \tabularnewline
q19 excluded & 0.3567 & 0.403 & 0.3849 & 0.1444 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=315773&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]0.4919[/C][C]0.5664[/C][C]0.5646[/C][C]0.2071[/C][/ROW]
[ROW][C]q15 excluded[/C][C]0.3533[/C][C]0.4264[/C][C]0.4323[/C][C]0.1567[/C][/ROW]
[ROW][C]q16 excluded[/C][C]0.5566[/C][C]0.6098[/C][C]0.5707[/C][C]0.2809[/C][/ROW]
[ROW][C]q17 excluded[/C][C]0.574[/C][C]0.6296[/C][C]0.5874[/C][C]0.2982[/C][/ROW]
[ROW][C]q18 excluded[/C][C]0.3029[/C][C]0.4237[/C][C]0.416[/C][C]0.1553[/C][/ROW]
[ROW][C]q19 excluded[/C][C]0.3567[/C][C]0.403[/C][C]0.3849[/C][C]0.1444[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=315773&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=315773&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 itmes0.49190.56640.56460.2071
q15 excluded0.35330.42640.43230.1567
q16 excluded0.55660.60980.57070.2809
q17 excluded0.5740.62960.58740.2982
q18 excluded0.30290.42370.4160.1553
q19 excluded0.35670.4030.38490.1444


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):
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')