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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, 12 Nov 2016 18:42:34 +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/2016/Nov/12/t1478972661l4gamq5wxqfb8y6.htm/, Retrieved Thu, 02 May 2024 13:08:54 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=296739, Retrieved Thu, 02 May 2024 13:08:54 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact151

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [ervaarde controle EC] [2016-11-12 17:42:34] [a5a1109b2531d70fe6d77f4f71bfe676] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time0 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 time0 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=296739&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]0 seconds[/C][/ROW] [ROW]R Server[/C]Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=296739&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=296739&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 time0 seconds
R ServerBig Analytics Cloud Computing Center






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.55590.52760.50250.2182
Q2 excluded0.28960.30250.22570.1263
Q9 excluded0.37130.37590.29050.1672
Q16 excluded0.59130.57380.51790.3098
Q23 excluded0.55940.52560.48570.2697

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.5559 & 0.5276 & 0.5025 & 0.2182 \tabularnewline
Q2 excluded & 0.2896 & 0.3025 & 0.2257 & 0.1263 \tabularnewline
Q9 excluded & 0.3713 & 0.3759 & 0.2905 & 0.1672 \tabularnewline
Q16 excluded & 0.5913 & 0.5738 & 0.5179 & 0.3098 \tabularnewline
Q23 excluded & 0.5594 & 0.5256 & 0.4857 & 0.2697 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=296739&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]0.5559[/C][C]0.5276[/C][C]0.5025[/C][C]0.2182[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.2896[/C][C]0.3025[/C][C]0.2257[/C][C]0.1263[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]0.3713[/C][C]0.3759[/C][C]0.2905[/C][C]0.1672[/C][/ROW]
[ROW][C]Q16 excluded[/C][C]0.5913[/C][C]0.5738[/C][C]0.5179[/C][C]0.3098[/C][/ROW]
[ROW][C]Q23 excluded[/C][C]0.5594[/C][C]0.5256[/C][C]0.4857[/C][C]0.2697[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=296739&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=296739&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 itmes0.55590.52760.50250.2182
Q2 excluded0.28960.30250.22570.1263
Q9 excluded0.37130.37590.29050.1672
Q16 excluded0.59130.57380.51790.3098
Q23 excluded0.55940.52560.48570.2697


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')