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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 computationSun, 14 Oct 2012 06:42:24 -0400
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2012/Oct/14/t13502114398tzsrn9lp5e2ztd.htm/, Retrieved Sat, 27 Apr 2024 15:00:49 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=176039, Retrieved Sat, 27 Apr 2024 15:00:49 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact131

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 11:46:14] [b98453cac15ba1066b407e146608df68]
- R  D    [Cronbach Alpha] [Cronbach I motiva...] [2012-10-14 10:42:24] [4289cf790da1cc09a0cb8798de13fde3] [Current]
-    D      [Cronbach Alpha] [Cronbach E motiva...] [2012-10-14 10:45:56] [aa4758794357e809405bf1fb1497cdc4]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
26	21	21
20	16	15
19	19	18
19	18	11
20	16	8
25	23	19
25	17	4
22	12	20
26	19	16
22	16	14
17	19	10
22	20	13
19	13	14
24	20	8
26	27	23
21	17	11
13	8	9
26	25	24
20	26	5
22	13	15
14	19	5
21	15	19
7	5	6
23	16	13
17	14	11
25	24	17
25	24	17
19	9	5
20	19	9
23	19	15
22	25	17
22	19	17
21	18	20
15	15	12
20	12	7
22	21	16
18	12	7
20	15	14
28	28	24
22	25	15
18	19	15
23	20	10
20	24	14
25	26	18
26	25	12
15	12	9
17	12	9
23	15	8
21	17	18
13	14	10
18	16	17
19	11	14
22	20	16
16	11	10
24	22	19
18	20	10
20	19	14
24	17	10
14	21	4
22	23	19
24	18	9
18	17	12
21	27	16
23	25	11
17	19	18
22	22	11
24	24	24
21	20	17
22	19	18
16	11	9
21	22	19
23	22	18
22	16	12
24	20	23
24	24	22
16	16	14
16	16	14
21	22	16
26	24	23
15	16	7
25	27	10
18	11	12
23	21	12
20	20	12
17	20	17
25	27	21
24	20	16
17	12	11
19	8	14
20	21	13
15	18	9
27	24	19
22	16	13
23	18	19
16	20	13
19	20	13
25	19	13
19	17	14
19	16	12
26	26	22
21	15	11
20	22	5
24	17	18
22	23	19
20	21	14
18	19	15
18	14	12
24	17	19
24	12	15
22	24	17
23	18	8
22	20	10
20	16	12
18	20	12
25	22	20
18	12	12
16	16	12
20	17	14
19	22	6
15	12	10
19	14	18
19	23	18
16	15	7
17	17	18
28	28	9
23	20	17
25	23	22
20	13	11
17	18	15
23	23	17
16	19	15
23	23	22
11	12	9
18	16	13
24	23	20
23	13	14
21	22	14
16	18	12
24	23	20
23	20	20
18	10	8
20	17	17
9	18	9
24	15	18
25	23	22
20	17	10
21	17	13
25	22	15
22	20	18
21	20	18
21	19	12
22	18	12
27	22	20
24	20	12
24	22	16
21	18	16
18	16	18
16	16	16
22	16	13
20	16	17
18	17	13
20	18	17

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'Herman Ole Andreas Wold' @ wold.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 & 'Herman Ole Andreas Wold' @ wold.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=176039&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]'Herman Ole Andreas Wold' @ wold.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=176039&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=176039&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'Herman Ole Andreas Wold' @ wold.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.75630.76590.69360.5217
I1 excluded0.61590.61610.44520.4452
I2 excluded0.67310.68480.52070.5207
I3 excluded0.74070.74940.59920.5992

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7563 & 0.7659 & 0.6936 & 0.5217 \tabularnewline
I1 excluded & 0.6159 & 0.6161 & 0.4452 & 0.4452 \tabularnewline
I2 excluded & 0.6731 & 0.6848 & 0.5207 & 0.5207 \tabularnewline
I3 excluded & 0.7407 & 0.7494 & 0.5992 & 0.5992 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=176039&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]0.7563[/C][C]0.7659[/C][C]0.6936[/C][C]0.5217[/C][/ROW]
[ROW][C]I1 excluded[/C][C]0.6159[/C][C]0.6161[/C][C]0.4452[/C][C]0.4452[/C][/ROW]
[ROW][C]I2 excluded[/C][C]0.6731[/C][C]0.6848[/C][C]0.5207[/C][C]0.5207[/C][/ROW]
[ROW][C]I3 excluded[/C][C]0.7407[/C][C]0.7494[/C][C]0.5992[/C][C]0.5992[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=176039&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=176039&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 itmes0.75630.76590.69360.5217
I1 excluded0.61590.61610.44520.4452
I2 excluded0.67310.68480.52070.5207
I3 excluded0.74070.74940.59920.5992


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
Parameters (R input):
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')