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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 21:18:20 +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/t1418851180m0xy4k75ezogqhb.htm/, Retrieved Thu, 16 May 2024 14:41:17 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270700, Retrieved Thu, 16 May 2024 14:41:17 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact88

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 11:40:37] [b98453cac15ba1066b407e146608df68]
- RMPD    [Cronbach Alpha] [] [2014-12-17 21:18:20] [8bc211f73340264728ef5f82b44185ba] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
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	5	3	5
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
4	2	4	4
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
6	5	5	7
6	1	4	6
6	4	6	7
5	5	4	5
5	2	5	3
6	7	4	5
7	5	6	7
7	6	7	7
5	3	4	4
7	2	6	7
7	7	6	7
7	7	7	7
6	5	5	6
7	5	6	7
6	6	6	7
6	5	6	7
6	4	5	6
5	6	4	3
5	3	4	5
6	4	3	4
7	6	6	7
6	5	7	7
7	4	5	6
7	5	5	7
4	5	5	6
7	7	6	6
6	5	6	6
7	5	6	6
7	4	4	6
5	5	4	5
5	6	5	6
7	3	6	6
7	6	6	7
7	5	6	7
5	2	2	5
6	4	4	7
6	3	6	6
6	2	5	5
7	5	6	7
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
6	3	4	4
6	5	6	6
5	5	4	5
6	6	6	6
5	5	3	6
1	4	2	5
6	1	4	5
5	5	2	5
5	4	5	6
6	5	3	5
5	5	4	6
7	3	5	5
6	6	6	6
7	7	7	7
7	5	6	6
6	1	2	5
7	4	4	7
5	5	3	5
7	6	4	6
2	5	2	4
5	5	5	5
7	5	5	7
7	3	7	7
7	6	7	7
3	4	4	3
6	4	6	5
6	5	6	6
7	6	5	7
5	5	5	5
6	6	7	7
7	5	4	6
6	6	5	7
6	5	5	5
3	3	2	5
7	1	6	7
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 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=270700&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=270700&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270700&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 itmes0.7530.76340.74660.4465
Q7 excluded0.70810.71630.64390.4571
Q14 excluded0.80080.80230.73910.5749
Q21 excluded0.63890.65870.63410.3915
Q28 excluded0.62280.63030.57310.3623

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.753 & 0.7634 & 0.7466 & 0.4465 \tabularnewline
Q7 excluded & 0.7081 & 0.7163 & 0.6439 & 0.4571 \tabularnewline
Q14 excluded & 0.8008 & 0.8023 & 0.7391 & 0.5749 \tabularnewline
Q21 excluded & 0.6389 & 0.6587 & 0.6341 & 0.3915 \tabularnewline
Q28 excluded & 0.6228 & 0.6303 & 0.5731 & 0.3623 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270700&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]0.753[/C][C]0.7634[/C][C]0.7466[/C][C]0.4465[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.7081[/C][C]0.7163[/C][C]0.6439[/C][C]0.4571[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.8008[/C][C]0.8023[/C][C]0.7391[/C][C]0.5749[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.6389[/C][C]0.6587[/C][C]0.6341[/C][C]0.3915[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.6228[/C][C]0.6303[/C][C]0.5731[/C][C]0.3623[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270700&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270700&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 itmes0.7530.76340.74660.4465
Q7 excluded0.70810.71630.64390.4571
Q14 excluded0.80080.80230.73910.5749
Q21 excluded0.63890.65870.63410.3915
Q28 excluded0.62280.63030.57310.3623


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)
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')