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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 20:27:48 +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/t1418848079d0f0a746cotb8er.htm/, Retrieved Thu, 16 May 2024 15:24:13 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270653, Retrieved Thu, 16 May 2024 15:24:13 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact42

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 20:27:48] [8bc211f73340264728ef5f82b44185ba] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
5	4	4	5
0	4	5	4
1	1	2	2
2	5	1	2
5	2	2	3
2	4	2	2
6	3	2	2
3	4	4	4
2	3	1	2
1	1	1	1
1	1	1	1
2	2	2	3
3	4	3	2
3	1	1	1
4	2	2	3
4	1	1	4
5	4	3	4
3	3	3	3
3	2	4	3
4	1	1	5
3	3	3	5
3	1	2	5
5	5	4	5
4	4	4	4
5	5	5	6
3	5	4	4
4	1	4	2
2	5	2	3
3	2	2	1
3	2	2	2
4	4	3	3
2	3	3	5
1	1	2	3
6	5	1	5
4	1	2	1
3	2	2	2
2	5	4	4
2	3	3	3
2	7	6	5
3	2	4	4
1	2	2	2
2	2	1	3
2	4	4	5
4	5	5	5
2	1	1	1
2	2	3	4
3	1	2	2
4	6	5	4
3	2	4	5
4	7	7	6
3	1	4	4
2	3	3	2
7	5	5	5
5	4	4	5
2	2	2	4
5	5	5	5
4	4	4	5
4	5	4	4
3	3	2	2
6	3	2	4
3	3	4	4
1	3	2	2
4	4	4	5
6	3	3	4
3	3	3	4
3	4	3	4
2	1	1	2
4	4	5	5
4	5	3	4
7	6	6	5
5	4	3	5
2	4	5	5
3	5	5	5
2	1	1	1
2	2	4	2
4	3	4	6
2	4	4	2
4	6	6	6
5	6	3	5
1	1	2	2
1	3	1	2
4	4	3	4
3	2	2	3
4	5	4	5
4	4	5	6
3	3	4	2
4	5	4	3
3	3	3	3
4	4	4	4
3	3	3	3
5	3	5	2
4	5	4	4
4	3	4	3
1	1	1	1
4	3	2	2
2	1	2	2
3	5	5	5
4	2	3	5
4	3	2	2
5	5	3	5
4	5	4	3
6	2	2	1
4	5	5	5
6	4	5	5
4	5	4	4
4	3	2	3
4	3	1	2
5	1	1	2
4	3	4	5
2	1	2	3
5	1	4	1
3	3	2	3
2	1	1	2
4	4	4	4
4	4	2	4
4	3	4	5
3	3	2	3
4	5	4	4
4	5	3	4
4	5	4	5
4	3	3	5
4	4	4	3
1	5	4	5
4	2	2	2

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 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 & 1 seconds \tabularnewline
R Server & 'Sir Maurice George Kendall' @ kendall.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270653&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]1 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=270653&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270653&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 time1 seconds
R Server'Sir Maurice George Kendall' @ kendall.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.79580.79470.76770.4917
Q4 excluded0.84110.84260.78250.6409
Q11 excluded0.7060.70530.65140.4438
Q18 excluded0.70520.70390.6370.442
Q25 excluded0.70460.70230.65350.4402

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7958 & 0.7947 & 0.7677 & 0.4917 \tabularnewline
Q4 excluded & 0.8411 & 0.8426 & 0.7825 & 0.6409 \tabularnewline
Q11 excluded & 0.706 & 0.7053 & 0.6514 & 0.4438 \tabularnewline
Q18 excluded & 0.7052 & 0.7039 & 0.637 & 0.442 \tabularnewline
Q25 excluded & 0.7046 & 0.7023 & 0.6535 & 0.4402 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270653&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]0.7958[/C][C]0.7947[/C][C]0.7677[/C][C]0.4917[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.8411[/C][C]0.8426[/C][C]0.7825[/C][C]0.6409[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.706[/C][C]0.7053[/C][C]0.6514[/C][C]0.4438[/C][/ROW]
[ROW][C]Q18 excluded[/C][C]0.7052[/C][C]0.7039[/C][C]0.637[/C][C]0.442[/C][/ROW]
[ROW][C]Q25 excluded[/C][C]0.7046[/C][C]0.7023[/C][C]0.6535[/C][C]0.4402[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270653&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270653&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 itmes0.79580.79470.76770.4917
Q4 excluded0.84110.84260.78250.6409
Q11 excluded0.7060.70530.65140.4438
Q18 excluded0.70520.70390.6370.442
Q25 excluded0.70460.70230.65350.4402


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')