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R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Fri, 17 Dec 2010 14:20:47 +0000

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Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2010/Dec/17/t1292595572fpghgdlhauz8qlt.htm/, Retrieved Mon, 06 May 2024 23:25:00 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=111482, Retrieved Mon, 06 May 2024 23:25:00 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

121

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]
-    D  [Cronbach Alpha] [Extr 1] [2010-10-17 19:07:13] [87116ee6ef949037dfa02b8eb1a3bf97]
-         [Cronbach Alpha] [] [2010-12-17 13:23:12] [87116ee6ef949037dfa02b8eb1a3bf97]
- R  D        [Cronbach Alpha] [Cronbach Alpha - CM] [2010-12-17 14:20:47] [66b4703b90a9701067ac75b10c82aca9] [Current]

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Histogram

Boxplots

4	4	3	3	3	2	2	3	2
2	2	2	2	4	2	2	2	2
1	4	2	2	4	2	2	2	2
4	4	4	2	4	4	4	3	2
4	4	1	2	2	2	2	2	2
2	2	2	2	2	2	2	2	2
2	4	4	4	4	2	2	2	2
2	4	2	2	4	2	2	2	2
2	2	3	3	3	2	3	2	2
3	2	5	4	4	4	2	3	2
1	1	2	4	2	1	1	1	2
3	3	1	1	2	1	1	2	2
1	1	4	4	4	3	3	2	2
1	2	2	3	2	2	1	2	2
2	2	4	2	2	2	1	2	2
3	3	3	2	3	2	2	2	2
4	4	2	2	4	4	3	4	4
3	3	3	2	4	3	4	3	3
5	5	4	4	5	3	4	4	4
4	4	2	2	4	4	2	2	2
4	2	2	2	3	2	2	4	4
3	4	2	2	3	3	2	3	3
2	3	4	3	5	3	2	3	4
4	4	2	2	4	4	2	2	4
3	1	2	1	2	2	1	1	2
1	2	2	2	2	2	3	2	2
3	4	2	2	2	2	2	2	2
4	4	2	1	5	2	3	2	2
2	3	3	2	2	2	2	4	3
2	1	2	4	2	4	4	2	2
2	3	2	2	2	2	2	2	2
4	1	2	2	2	2	2	2	1
2	2	2	2	2	2	2	2	2
2	3	3	2	4	3	3	4	2
2	2	2	2	2	2	2	2	2
2	2	2	2	2	2	2	2	2
4	4	4	4	3	2	2	2	3
2	2	2	2	2	2	2	2	1
2	4	2	2	4	4	3	4	4
2	1	1	3	1	1	1	1	1
4	2	4	4	4	2	3	2	3
4	2	2	2	2	2	2	2	2
1	3	2	1	2	2	2	2	2
2	2	1	2	2	2	2	2	2
1	3	2	2	2	2	2	3	3
4	4	4	2	4	2	4	4	3
4	2	2	2	2	2	2	2	3
3	2	2	1	2	2	3	2	2
1	3	2	2	2	3	3	3	4
2	2	2	2	2	1	2	1	1
2	3	3	3	4	3	2	2	2
2	4	2	4	4	4	2	2	4
1	2	2	3	2	2	1	1	2
2	3	2	2	2	2	2	2	2
1	3	3	2	2	2	2	3	3
3	4	2	4	2	1	1	2	2
2	3	3	2	3	2	1	2	2
2	2	1	2	2	2	2	1	2
2	5	3	3	2	2	4	2	2
4	4	3	3	4	2	4	3	3
4	4	4	4	5	2	2	2	2
2	2	2	2	2	3	3	3	3
2	4	2	2	2	2	2	1	2
4	4	4	4	4	3	3	3	4
1	2	2	2	2	2	2	2	2
1	1	1	1	1	1	1	1	1
1	2	1	1	1	2	3	1	2
1	2	1	1	2	1	2	3	2
2	1	2	1	2	1	1	1	1
2	4	2	2	2	2	3	2	2
1	2	2	1	3	2	3	2	4
4	4	3	4	3	3	3	2	3
4	4	4	3	5	4	4	3	2
1	3	2	3	2	2	2	3	3
2	3	2	1	1	2	2	1	1
3	2	2	2	2	2	2	2	2
2	3	3	4	2	2	2	2	3
4	4	2	1	2	1	2	2	2
2	3	2	2	3	2	2	2	2
2	2	2	2	2	2	2	2	2
4	4	4	3	2	4	3	3	4
4	4	1	1	1	2	1	2	2
1	2	1	2	1	1	2	1	2
1	1	1	1	1	1	1	1	1
3	2	3	3	2	2	1	2	2
2	2	2	2	2	2	2	2	2
3	4	2	2	4	2	2	2	2
3	2	1	1	3	2	2	2	1
2	2	1	2	2	2	2	2	2
2	3	1	1	2	2	1	2	2
4	4	3	4	3	3	4	3	3
2	1	3	2	2	1	1	2	1
4	4	2	4	2	4	2	2	4
2	4	3	3	4	2	2	3	3
1	4	3	1	4	2	1	2	2
2	2	3	2	2	2	2	2	2
2	3	3	2	3	3	3	4	2
2	2	2	2	2	2	2	2	2
2	4	2	2	2	2	2	2	2
5	4	2	4	4	4	2	4	4
3	2	2	4	5	1	4	2	1
4	3	1	1	3	2	2	3	3
5	4	4	4	4	2	4	3	2
3	3	4	3	5	3	3	4	3
1	2	1	2	2	1	1	1	2
3	2	1	2	2	2	2	2	2
1	2	2	2	4	2	1	2	1
3	4	2	3	3	4	3	3	4
2	4	2	2	3	3	2	2	2
3	2	1	1	3	3	2	1	2
2	4	2	2	2	2	2	4	2
4	3	1	4	2	4	3	2	2
2	1	1	3	2	2	4	2	3
3	2	2	2	2	3	3	1	2
2	4	2	2	2	2	1	1	1
4	4	2	3	2	4	2	2	3
1	2	1	1	1	1	1	1	1
2	2	2	3	2	1	1	1	1
3	3	2	2	2	2	2	2	2
1	2	1	1	2	2	2	2	1
2	3	1	1	2	2	1	2	2
4	3	1	3	2	3	3	2	2
1	2	2	1	1	1	1	1	1
2	3	2	2	2	2	2	2	2
3	4	3	4	5	3	3	2	3
2	2	2	2	4	2	3	2	2
2	2	2	2	2	3	3	2	2
2	4	2	2	2	3	3	2	2
4	4	4	2	4	4	1	4	3
4	2	3	3	2	3	2	3	3
2	4	2	2	3	2	3	2	3
4	4	2	2	2	2	3	2	2
2	4	2	3	2	2	2	2	2
4	5	2	3	4	2	2	4	4
2	3	2	2	3	3	1	3	3
4	3	5	4	4	3	4	2	3
4	3	1	2	4	2	1	2	3
3	1	2	1	2	2	1	1	2
2	4	2	2	2	2	2	2	3
3	4	2	3	4	2	2	4	3
1	2	2	3	3	3	2	3	3
1	1	1	1	1	1	1	1	1
1	5	3	3	5	3	2	3	4
3	3	2	2	2	2	2	2	2
2	2	2	1	2	2	1	2	2

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'Sir Ronald Aylmer Fisher' @ 193.190.124.24

\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 & 2 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ 193.190.124.24 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=111482&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]2 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Sir Ronald Aylmer Fisher' @ 193.190.124.24[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=111482&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=111482&T=0

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'Sir Ronald Aylmer Fisher' @ 193.190.124.24

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.8504	0.855	0.859	0.3958
Q1_9 excluded	0.8439	0.8475	0.8505	0.4099
Q1_10 excluded	0.8376	0.8427	0.8449	0.4011
Q1_13 excluded	0.8346	0.8407	0.8366	0.3975
Q1_14 excluded	0.8397	0.8454	0.8423	0.406
Q1_18 excluded	0.8253	0.8318	0.834	0.382
Q1_21 excluded	0.8309	0.8349	0.8373	0.3874
Q1_23 excluded	0.84	0.8457	0.8492	0.4065
Q1_25 excluded	0.83	0.834	0.8312	0.3858
Q1_34 excluded	0.8304	0.8343	0.8293	0.3863

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8504 & 0.855 & 0.859 & 0.3958 \tabularnewline
Q1_9 excluded & 0.8439 & 0.8475 & 0.8505 & 0.4099 \tabularnewline
Q1_10 excluded & 0.8376 & 0.8427 & 0.8449 & 0.4011 \tabularnewline
Q1_13 excluded & 0.8346 & 0.8407 & 0.8366 & 0.3975 \tabularnewline
Q1_14 excluded & 0.8397 & 0.8454 & 0.8423 & 0.406 \tabularnewline
Q1_18 excluded & 0.8253 & 0.8318 & 0.834 & 0.382 \tabularnewline
Q1_21 excluded & 0.8309 & 0.8349 & 0.8373 & 0.3874 \tabularnewline
Q1_23 excluded & 0.84 & 0.8457 & 0.8492 & 0.4065 \tabularnewline
Q1_25 excluded & 0.83 & 0.834 & 0.8312 & 0.3858 \tabularnewline
Q1_34 excluded & 0.8304 & 0.8343 & 0.8293 & 0.3863 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=111482&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]0.8504[/C][C]0.855[/C][C]0.859[/C][C]0.3958[/C][/ROW]
[ROW][C]Q1_9 excluded[/C][C]0.8439[/C][C]0.8475[/C][C]0.8505[/C][C]0.4099[/C][/ROW]
[ROW][C]Q1_10 excluded[/C][C]0.8376[/C][C]0.8427[/C][C]0.8449[/C][C]0.4011[/C][/ROW]
[ROW][C]Q1_13 excluded[/C][C]0.8346[/C][C]0.8407[/C][C]0.8366[/C][C]0.3975[/C][/ROW]
[ROW][C]Q1_14 excluded[/C][C]0.8397[/C][C]0.8454[/C][C]0.8423[/C][C]0.406[/C][/ROW]
[ROW][C]Q1_18 excluded[/C][C]0.8253[/C][C]0.8318[/C][C]0.834[/C][C]0.382[/C][/ROW]
[ROW][C]Q1_21 excluded[/C][C]0.8309[/C][C]0.8349[/C][C]0.8373[/C][C]0.3874[/C][/ROW]
[ROW][C]Q1_23 excluded[/C][C]0.84[/C][C]0.8457[/C][C]0.8492[/C][C]0.4065[/C][/ROW]
[ROW][C]Q1_25 excluded[/C][C]0.83[/C][C]0.834[/C][C]0.8312[/C][C]0.3858[/C][/ROW]
[ROW][C]Q1_34 excluded[/C][C]0.8304[/C][C]0.8343[/C][C]0.8293[/C][C]0.3863[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=111482&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=111482&T=1

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.8504	0.855	0.859	0.3958
Q1_9 excluded	0.8439	0.8475	0.8505	0.4099
Q1_10 excluded	0.8376	0.8427	0.8449	0.4011
Q1_13 excluded	0.8346	0.8407	0.8366	0.3975
Q1_14 excluded	0.8397	0.8454	0.8423	0.406
Q1_18 excluded	0.8253	0.8318	0.834	0.382
Q1_21 excluded	0.8309	0.8349	0.8373	0.3874
Q1_23 excluded	0.84	0.8457	0.8492	0.4065
Q1_25 excluded	0.83	0.834	0.8312	0.3858
Q1_34 excluded	0.8304	0.8343	0.8293	0.3863

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')

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Input Parameters & R Code