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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, 17 Dec 2014 16:07:05 +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/17/t14188324424oyh9wvignphtok.htm/, Retrieved Thu, 16 May 2024 13:12:07 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270480, Retrieved Thu, 16 May 2024 13:12:07 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact68

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Cronbach Alpha] [Intrinsic Motivat...] [2010-10-12 11:42:57] [b98453cac15ba1066b407e146608df68]
- RMPD  [Cronbach Alpha] [] [2014-12-17 15:59:50] [8d160a85bfd9526a7d0e42afc5fb569b]
-    D      [Cronbach Alpha] [] [2014-12-17 16:07:05] [1d338d9433eb3ecdb4d9d35f41140a45] [Current]
-  M          [Cronbach Alpha] [] [2014-12-17 16:09:43] [8d160a85bfd9526a7d0e42afc5fb569b]
-  M D          [Cronbach Alpha] [] [2014-12-17 16:15:57] [8d160a85bfd9526a7d0e42afc5fb569b]
-  M D          [Cronbach Alpha] [] [2014-12-17 17:50:11] [8d160a85bfd9526a7d0e42afc5fb569b]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time3 seconds
R Server'Sir Maurice George Kendall' @ kendall.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 & 3 seconds \tabularnewline
R Server & 'Sir Maurice George Kendall' @ kendall.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270480&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]3 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Sir Maurice George Kendall' @ kendall.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270480&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270480&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 time3 seconds
R Server'Sir Maurice George Kendall' @ kendall.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.77130.77980.75030.4696
Q7 excluded0.72960.73480.660.4802
Q14 excluded0.77140.77810.71520.5389
Q21 excluded0.68440.70460.64520.4429
Q28 excluded0.67970.68150.59910.4163

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7713 & 0.7798 & 0.7503 & 0.4696 \tabularnewline
Q7 excluded & 0.7296 & 0.7348 & 0.66 & 0.4802 \tabularnewline
Q14 excluded & 0.7714 & 0.7781 & 0.7152 & 0.5389 \tabularnewline
Q21 excluded & 0.6844 & 0.7046 & 0.6452 & 0.4429 \tabularnewline
Q28 excluded & 0.6797 & 0.6815 & 0.5991 & 0.4163 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270480&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]0.7713[/C][C]0.7798[/C][C]0.7503[/C][C]0.4696[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.7296[/C][C]0.7348[/C][C]0.66[/C][C]0.4802[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.7714[/C][C]0.7781[/C][C]0.7152[/C][C]0.5389[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.6844[/C][C]0.7046[/C][C]0.6452[/C][C]0.4429[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.6797[/C][C]0.6815[/C][C]0.5991[/C][C]0.4163[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270480&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270480&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 itmes0.77130.77980.75030.4696
Q7 excluded0.72960.73480.660.4802
Q14 excluded0.77140.77810.71520.5389
Q21 excluded0.68440.70460.64520.4429
Q28 excluded0.67970.68150.59910.4163


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 1 2 3 4 5 6 7 ;
Parameters (R input):
par1 = 1 2 3 4 5 6 7 ;
R code (references can be found in the software module):
library(psych)
z <- t(y)
(r <- alpha(z))
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')