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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 computationWed, 10 Dec 2014 14:00:13 +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/10/t1418220036hs90l53204jnrpn.htm/, Retrieved Fri, 17 May 2024 08:34:24 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=265208, Retrieved Fri, 17 May 2024 08:34:24 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact109

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Histogram] [1.1 AMSI - histogram] [2014-12-09 11:36:56] [4d39cf209776852399955073f9d0ee7a]
- R  D  [Histogram] [1.1 AMSE : Histog...] [2014-12-10 13:00:22] [765bd0d5d4a0c852014c120c6930661d]
- RMPD    [Cronbach Alpha] [1.1 AMSI : Cronba...] [2014-12-10 13:58:26] [765bd0d5d4a0c852014c120c6930661d]
- R  D        [Cronbach Alpha] [1.1 AMSI : Cronba...] [2014-12-10 14:00:13] [706bcb1d0c5210dc074174906fafd7a3] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time7 seconds
R Server'Gwilym Jenkins' @ jenkins.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 & 7 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265208&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]7 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Gwilym Jenkins' @ jenkins.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265208&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265208&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 time7 seconds
R Server'Gwilym Jenkins' @ jenkins.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.76610.76630.71680.4505
6 excluded0.71420.71380.62950.454
13 excluded0.71650.71760.63280.4586
20 excluded0.70310.70280.61450.4408
27 excluded0.70870.70930.62090.4485

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7661 & 0.7663 & 0.7168 & 0.4505 \tabularnewline
6 excluded & 0.7142 & 0.7138 & 0.6295 & 0.454 \tabularnewline
13 excluded & 0.7165 & 0.7176 & 0.6328 & 0.4586 \tabularnewline
20 excluded & 0.7031 & 0.7028 & 0.6145 & 0.4408 \tabularnewline
27 excluded & 0.7087 & 0.7093 & 0.6209 & 0.4485 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=265208&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]0.7661[/C][C]0.7663[/C][C]0.7168[/C][C]0.4505[/C][/ROW]
[ROW][C]6 excluded[/C][C]0.7142[/C][C]0.7138[/C][C]0.6295[/C][C]0.454[/C][/ROW]
[ROW][C]13 excluded[/C][C]0.7165[/C][C]0.7176[/C][C]0.6328[/C][C]0.4586[/C][/ROW]
[ROW][C]20 excluded[/C][C]0.7031[/C][C]0.7028[/C][C]0.6145[/C][C]0.4408[/C][/ROW]
[ROW][C]27 excluded[/C][C]0.7087[/C][C]0.7093[/C][C]0.6209[/C][C]0.4485[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=265208&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=265208&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 itmes0.76610.76630.71680.4505
6 excluded0.71420.71380.62950.454
13 excluded0.71650.71760.63280.4586
20 excluded0.70310.70280.61450.4408
27 excluded0.70870.70930.62090.4485


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = grey ;
Parameters (R input):
par1 = grey ;
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')