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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 computationThu, 14 Dec 2017 16:33:09 +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/2017/Dec/14/t1513265812ma9fu9w3wcfkx7k.htm/, Retrieved Tue, 14 May 2024 15:07:55 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=309536, Retrieved Tue, 14 May 2024 15:07:55 +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)
-       [Cronbach Alpha] [cronbach snelheid] [2017-12-14 15:33:09] [ec772448347bb766a411d58621b503be] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time1 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 time1 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=309536&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]1 seconds[/C][/ROW] [ROW]R Server[/C]Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=309536&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=309536&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 time1 seconds
R ServerBig Analytics Cloud Computing Center






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.67250.67260.6830.3393
vraag_1 excluded0.5820.58310.50790.3179
vraag_2 excluded0.550.55650.48510.2949
vraag_3 excluded0.61840.61690.6010.3492
vraag_4 excluded0.66590.66230.63110.3953

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.6725 & 0.6726 & 0.683 & 0.3393 \tabularnewline
vraag_1 excluded & 0.582 & 0.5831 & 0.5079 & 0.3179 \tabularnewline
vraag_2 excluded & 0.55 & 0.5565 & 0.4851 & 0.2949 \tabularnewline
vraag_3 excluded & 0.6184 & 0.6169 & 0.601 & 0.3492 \tabularnewline
vraag_4 excluded & 0.6659 & 0.6623 & 0.6311 & 0.3953 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=309536&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]0.6725[/C][C]0.6726[/C][C]0.683[/C][C]0.3393[/C][/ROW]
[ROW][C]vraag_1 excluded[/C][C]0.582[/C][C]0.5831[/C][C]0.5079[/C][C]0.3179[/C][/ROW]
[ROW][C]vraag_2 excluded[/C][C]0.55[/C][C]0.5565[/C][C]0.4851[/C][C]0.2949[/C][/ROW]
[ROW][C]vraag_3 excluded[/C][C]0.6184[/C][C]0.6169[/C][C]0.601[/C][C]0.3492[/C][/ROW]
[ROW][C]vraag_4 excluded[/C][C]0.6659[/C][C]0.6623[/C][C]0.6311[/C][C]0.3953[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=309536&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=309536&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 itmes0.67250.67260.6830.3393
vraag_1 excluded0.5820.58310.50790.3179
vraag_2 excluded0.550.55650.48510.2949
vraag_3 excluded0.61840.61690.6010.3492
vraag_4 excluded0.66590.66230.63110.3953


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')