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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, 15 Dec 2014 11:19:14 +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/15/t1418642415b28gcuyx4u1zn3m.htm/, Retrieved Thu, 16 May 2024 05:52:12 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=268119, Retrieved Thu, 16 May 2024 05:52:12 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact59

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] [Q2] [2014-12-15 11:19:14] [6fc1b517ba5ef695988bbc0a377c4b82] [Current]
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Dataset

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

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'Gertrude Mary Cox' @ cox.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 & 'Gertrude Mary Cox' @ cox.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268119&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]'Gertrude Mary Cox' @ cox.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268119&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268119&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'Gertrude Mary Cox' @ cox.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.55580.56750.46960.3043
AMS.E1 excluded0.48770.50020.33350.3335
AMS.E2 excluded0.49690.4970.33070.3307
AMS.E3 excluded0.38570.39840.24880.2488

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.5558 & 0.5675 & 0.4696 & 0.3043 \tabularnewline
AMS.E1 excluded & 0.4877 & 0.5002 & 0.3335 & 0.3335 \tabularnewline
AMS.E2 excluded & 0.4969 & 0.497 & 0.3307 & 0.3307 \tabularnewline
AMS.E3 excluded & 0.3857 & 0.3984 & 0.2488 & 0.2488 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=268119&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]0.5558[/C][C]0.5675[/C][C]0.4696[/C][C]0.3043[/C][/ROW]
[ROW][C]AMS.E1 excluded[/C][C]0.4877[/C][C]0.5002[/C][C]0.3335[/C][C]0.3335[/C][/ROW]
[ROW][C]AMS.E2 excluded[/C][C]0.4969[/C][C]0.497[/C][C]0.3307[/C][C]0.3307[/C][/ROW]
[ROW][C]AMS.E3 excluded[/C][C]0.3857[/C][C]0.3984[/C][C]0.2488[/C][C]0.2488[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=268119&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=268119&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 itmes0.55580.56750.46960.3043
AMS.E1 excluded0.48770.50020.33350.3335
AMS.E2 excluded0.49690.4970.33070.3307
AMS.E3 excluded0.38570.39840.24880.2488


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')