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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 computationMon, 08 Dec 2014 21:17:39 +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/08/t1418073497ar4x6y8k1ql3b4i.htm/, Retrieved Sun, 19 May 2024 11:12:51 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=264259, Retrieved Sun, 19 May 2024 11:12:51 +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)
-     [Survey Scores] [Survey Scores E1 ...] [2014-12-08 17:35:50] [81f624c2f0b20a2549c93e7c3dccf981]
- RMPD    [Cronbach Alpha] [paper] [2014-12-08 21:17:39] [e9c088684c75c49d5852bf7a76ea4083] [Current]
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Dataset

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

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=264259&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=264259&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264259&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 itmes0.79710.79720.75410.4956
Q6 excluded0.7390.73840.65780.4847
Q13 excluded0.75290.75340.67310.5045
Q20 excluded0.74580.74550.6670.4941
Q27 excluded0.74820.74940.66890.4992

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7971 & 0.7972 & 0.7541 & 0.4956 \tabularnewline
Q6 excluded & 0.739 & 0.7384 & 0.6578 & 0.4847 \tabularnewline
Q13 excluded & 0.7529 & 0.7534 & 0.6731 & 0.5045 \tabularnewline
Q20 excluded & 0.7458 & 0.7455 & 0.667 & 0.4941 \tabularnewline
Q27 excluded & 0.7482 & 0.7494 & 0.6689 & 0.4992 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=264259&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]0.7971[/C][C]0.7972[/C][C]0.7541[/C][C]0.4956[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.739[/C][C]0.7384[/C][C]0.6578[/C][C]0.4847[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.7529[/C][C]0.7534[/C][C]0.6731[/C][C]0.5045[/C][/ROW]
[ROW][C]Q20 excluded[/C][C]0.7458[/C][C]0.7455[/C][C]0.667[/C][C]0.4941[/C][/ROW]
[ROW][C]Q27 excluded[/C][C]0.7482[/C][C]0.7494[/C][C]0.6689[/C][C]0.4992[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=264259&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=264259&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 itmes0.79710.79720.75410.4956
Q6 excluded0.7390.73840.65780.4847
Q13 excluded0.75290.75340.67310.5045
Q20 excluded0.74580.74550.6670.4941
Q27 excluded0.74820.74940.66890.4992


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')