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Author's title

Author

*The author of this computation has been verified*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Mon, 15 Oct 2012 12:12:19 -0400

Cite this page as follows

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2012/Oct/15/t1350317777k9m5p8bdoar0hl2.htm/, Retrieved Tue, 07 May 2024 20:59:02 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=177392, Retrieved Tue, 07 May 2024 20:59:02 +0000

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No (this computation is public)

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Estimated Impact

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]
- R  D  [Cronbach Alpha] [WS3 SHK Question 2] [2012-10-15 15:55:31] [04ad92fd38637a2baad7dd3848f865a0]
-    D      [Cronbach Alpha] [WS3 SHK Question ...] [2012-10-15 16:12:19] [f706fda52826ebc9a2bf44e9e4215203] [Current]

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Dataseries X:

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Histogram

Boxplots

7	7	7	7	1	5	4	4	4	7	5	5
6	5	5	6	3	5	6	4	5	5	4	4
6	5	6	6	4	5	5	5	4	5	5	5
5	5	6	6	5	6	4	5	5	6	5	6
6	5	6	6	5	6	6	4	5	6	4	5
7	7	5	7	7	5	6	6	7	7	5	7
7	7	7	7	1	5	7	4	4	6	4	7
7	5	6	7	5	6	6	2	6	7	5	6
7	3	7	6	2	7	5	5	4	7	4	7
6	6	6	6	3	6	5	5	3	6	4	6
4	7	7	7	6	7	7	5	5	7	6	7
6	6	7	7	4	6	7	6	2	7	4	5
6	5	6	7	3	6	7	3	3	5	3	3
7	3	6	7	3	6	7	5	3	6	5	2
6	7	7	7	6	6	7	7	7	7	7	7
6	5	6	6	5	6	6	5	5	6	4	5
4	7	7	7	5	7	6	2	5	7	2	5
7	7	7	7	5	7	7	7	4	7	6	6
7	7	7	7	1	7	7	5	6	7	7	7
6	6	7	7	5	6	6	3	6	6	4	6
3	5	5	5	3	5	5	3	4	4	5	5
7	7	7	4	4	7	7	1	6	7	6	7
5	4	5	6	2	5	5	2	3	6	1	5
7	7	6	7	3	7	7	5	2	7	3	5
6	7	7	7	5	6	6	5	5	7	4	6
5	7	6	7	5	2	6	7	5	5	5	7
5	7	6	7	5	2	6	7	5	5	5	7
6	3	6	6	2	7	2	2	1	7	1	2
5	7	6	2	4	4	2	4	5	6	4	6
6	5	6	6	6	4	5	5	6	6	5	6
6	7	6	7	6	5	6	6	5	6	6	7
5	5	5	6	4	5	6	5	6	6	5	6
4	5	3	4	6	4	4	5	7	1	5	6
5	4	3	5	3	7	4	4	4	5	4	4
4	5	5	5	6	7	5	3	5	7	4	6
6	6	6	6	3	4	6	6	6	5	4	6
6	7	7	7	4	7	5	3	7	7	3	7
7	5	7	6	4	4	6	5	2	5	4	5
7	7	7	7	7	6	7	7	7	7	7	7
7	7	6	6	5	6	7	5	5	6	6	6
7	6	7	7	5	6	5	5	5	7	4	5
5	6	7	6	4	6	6	5	5	6	5	6
6	7	6	5	6	6	5	6	6	6	5	7
6	7	6	6	4	7	6	5	5	5	7	6
3	6	5	7	4	6	5	6	5	6	6	6
6	6	6	5	2	6	4	2	4	6	5	6
5	4	6	6	3	4	5	2	2	5	3	3
4	7	7	5	6	7	6	4	6	7	5	6
6	5	6	6	4	6	6	5	4	6	4	4
6	6	7	6	6	7	3	3	6	7	5	6
6	5	6	6	3	6	4	4	3	5	4	4
5	3	5	7	4	7	6	2	3	5	2	3
6	7	7	6	5	7	6	5	7	7	5	7
5	6	4	6	2	2	5	2	4	3	2	4
7	6	7	5	7	6	5	6	4	6	6	7
6	5	5	5	6	6	5	5	5	6	5	5
6	5	6	6	5	5	6	5	5	5	5	5
7	7	7	7	1	6	6	5	2	6	2	4
4	7	7	5	6	6	6	5	6	6	6	6
3	7	7	4	6	6	4	6	6	7	6	6
4	6	7	6	2	6	3	5	5	7	5	7
4	6	6	6	5	6	5	5	6	6	3	5
5	7	6	7	5	4	5	7	4	5	6	4
4	7	6	5	6	3	7	6	6	4	7	7
6	5	4	5	5	4	5	4	4	5	5	4
7	7	6	7	4	7	7	5	4	6	6	7
6	6	6	6	6	6	6	6	6	6	6	6
6	5	7	7	2	6	6	5	4	7	5	6
6	6	7	6	6	7	6	5	6	6	5	6
6	5	7	6	5	7	6	2	5	7	4	5
7	5	7	7	4	7	7	5	5	7	5	5
6	6	7	7	2	5	6	6	6	7	6	6
6	6	6	6	2	6	5	3	2	6	4	5
6	6	5	6	5	3	7	5	6	5	4	6
7	7	7	6	6	6	6	6	7	7	6	6
5	6	5	4	6	5	4	4	5	5	4	5
4	5	5	4	5	5	4	4	5	5	4	5
7	7	7	7	5	6	6	5	6	6	5	6
7	7	7	7	5	6	7	7	7	7	7	7
6	6	2	4	5	4	6	2	5	3	4	5
7	7	6	7	5	4	6	7	6	4	7	7
6	6	6	6	3	5	5	3	2	5	2	2
5	6	6	6	4	6	5	6	5	6	4	5
7	7	6	6	3	5	5	5	6	6	5	6
6	6	5	6	4	5	5	6	6	6	3	7
5	7	6	7	7	6	6	7	7	6	6	7
6	7	7	6	5	7	7	5	5	7	5	5
5	5	5	4	5	5	5	3	5	7	3	5
7	3	7	7	1	7	7	2	1	7	1	1
6	6	6	6	4	7	3	5	5	7	5	6
2	6	5	2	4	2	4	5	5	2	5	5
5	5	6	6	3	5	6	6	4	5	6	6
7	6	7	6	5	4	7	5	5	6	5	7
7	6	7	6	5	7	7	5	3	6	5	6
7	6	6	6	6	6	6	5	6	6	5	6
7	7	7	7	5	7	7	5	5	7	5	5
6	6	6	6	3	5	4	6	6	5	5	6
5	6	5	6	3	5	5	4	4	5	5	5
6	6	5	6	4	4	5	5	5	6	6	6
6	7	6	6	5	7	7	6	5	6	7	6
5	6	6	7	5	5	6	5	6	7	4	6
7	5	6	7	3	4	3	5	2	4	3	5
5	5	6	5	5	6	5	4	6	6	5	5
6	6	6	6	6	6	6	6	6	6	6	6
5	6	5	7	6	5	5	6	5	5	4	6
5	6	5	5	5	5	5	5	5	5	4	5
5	5	5	5	4	3	5	3	6	5	2	6
5	6	7	6	4	5	5	5	4	6	4	6
7	4	7	7	2	6	7	3	4	7	1	1
6	6	6	6	3	6	6	6	6	6	6	7
7	7	7	7	6	7	7	4	7	7	6	7
6	7	7	6	6	7	6	6	6	7	6	6
5	5	4	5	6	5	4	5	3	5	5	4
5	5	5	5	5	5	5	5	5	6	5	5
7	7	7	7	6	6	7	6	5	7	5	6
6	3	7	5	2	4	5	4	2	7	2	3
5	7	7	6	6	7	6	3	7	7	4	7
7	5	6	7	5	5	5	4	5	7	4	6
4	7	5	6	3	6	2	5	5	5	6	6
3	5	7	6	5	7	4	4	2	7	2	6
7	3	4	4	4	7	5	2	3	7	5	5
5	6	6	6	6	6	5	6	6	6	6	6
6	5	6	5	5	6	6	3	6	5	5	6
4	4	3	4	4	4	4	4	3	5	4	3
7	7	7	7	7	7	7	7	7	7	7	7
7	6	6	7	2	6	6	6	5	7	3	5
5	7	7	6	6	5	6	6	7	6	6	6
7	2	6	7	6	6	6	7	4	6	2	5
3	5	5	6	4	5	5	5	5	6	4	5
6	6	6	5	4	5	5	5	6	6	6	6
5	6	6	5	3	6	5	5	4	6	5	5
5	6	7	6	6	6	6	6	6	6	6	6
6	2	6	6	5	4	4	2	3	5	4	5
5	6	7	7	6	6	6	4	3	6	4	3
6	7	6	6	6	7	5	7	6	7	6	7
6	4	6	5	1	6	5	4	3	6	3	3
7	7	7	7	5	7	5	7	7	7	5	7
5	7	7	5	4	7	6	4	5	7	4	5
7	6	7	7	6	6	7	7	5	6	5	6
6	6	7	5	6	5	6	5	5	6	4	6
6	2	6	5	5	5	5	2	4	7	2	4
7	7	7	7	4	5	6	5	5	5	4	6
7	7	7	4	5	7	6	3	7	5	7	7
5	5	6	6	4	3	4	3	3	6	4	4
7	5	7	7	3	6	6	6	6	7	6	6
5	6	6	5	3	5	4	3	4	5	4	5
6	5	7	5	6	7	6	4	5	7	6	6
7	6	6	6	2	4	6	6	4	5	6	4
6	6	5	5	4	6	6	5	4	6	5	5
5	6	4	6	4	4	5	6	5	5	5	5
6	5	7	7	4	6	5	5	5	7	5	5
7	6	7	7	5	7	5	2	6	7	6	6
6	7	5	7	3	4	6	5	7	5	4	7
7	7	7	7	5	6	7	6	6	7	2	7
7	6	6	7	4	7	7	7	5	6	5	6
6	6	5	4	4	5	4	4	5	6	4	6
6	6	6	7	6	6	6	4	6	6	6	5
4	7	7	7	7	4	4	4	6	7	4	7
7	6	7	6	5	4	7	5	5	6	5	7
6	5	6	6	4	6	4	4	3	5	4	6
4	5	5	5	3	4	4	4	4	5	4	4
5	5	6	5	1	3	5	5	5	5	5	5

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	1 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 & 1 seconds \tabularnewline
R Server & 'Herman Ole Andreas Wold' @ wold.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=177392&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]'Herman Ole Andreas Wold' @ wold.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=177392&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=177392&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	1 seconds
R Server	'Herman Ole Andreas Wold' @ wold.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.8003	0.8026	0.8575	0.253
Q3 excluded	0.8001	0.8006	0.8531	0.2675
Q7 excluded	0.7757	0.7804	0.8399	0.2442
Q8 excluded	0.7841	0.7817	0.8386	0.2456
Q10 excluded	0.7938	0.7941	0.8468	0.2596
Q14 excluded	0.7944	0.7973	0.8523	0.2634
Q15 excluded	0.7989	0.7982	0.8473	0.2645
Q17 excluded	0.7849	0.7855	0.844	0.2497
Q20 excluded	0.7844	0.7883	0.8437	0.2529
Q21 excluded	0.775	0.7825	0.8359	0.2465
Q22 excluded	0.7905	0.7899	0.8355	0.2548
Q27 excluded	0.7768	0.784	0.8387	0.2481
Q28 excluded	0.7691	0.776	0.8322	0.2395

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8003 & 0.8026 & 0.8575 & 0.253 \tabularnewline
Q3 excluded & 0.8001 & 0.8006 & 0.8531 & 0.2675 \tabularnewline
Q7 excluded & 0.7757 & 0.7804 & 0.8399 & 0.2442 \tabularnewline
Q8 excluded & 0.7841 & 0.7817 & 0.8386 & 0.2456 \tabularnewline
Q10 excluded & 0.7938 & 0.7941 & 0.8468 & 0.2596 \tabularnewline
Q14 excluded & 0.7944 & 0.7973 & 0.8523 & 0.2634 \tabularnewline
Q15 excluded & 0.7989 & 0.7982 & 0.8473 & 0.2645 \tabularnewline
Q17 excluded & 0.7849 & 0.7855 & 0.844 & 0.2497 \tabularnewline
Q20 excluded & 0.7844 & 0.7883 & 0.8437 & 0.2529 \tabularnewline
Q21 excluded & 0.775 & 0.7825 & 0.8359 & 0.2465 \tabularnewline
Q22 excluded & 0.7905 & 0.7899 & 0.8355 & 0.2548 \tabularnewline
Q27 excluded & 0.7768 & 0.784 & 0.8387 & 0.2481 \tabularnewline
Q28 excluded & 0.7691 & 0.776 & 0.8322 & 0.2395 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=177392&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]0.8003[/C][C]0.8026[/C][C]0.8575[/C][C]0.253[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.8001[/C][C]0.8006[/C][C]0.8531[/C][C]0.2675[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.7757[/C][C]0.7804[/C][C]0.8399[/C][C]0.2442[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.7841[/C][C]0.7817[/C][C]0.8386[/C][C]0.2456[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.7938[/C][C]0.7941[/C][C]0.8468[/C][C]0.2596[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.7944[/C][C]0.7973[/C][C]0.8523[/C][C]0.2634[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.7989[/C][C]0.7982[/C][C]0.8473[/C][C]0.2645[/C][/ROW]
[ROW][C]Q17 excluded[/C][C]0.7849[/C][C]0.7855[/C][C]0.844[/C][C]0.2497[/C][/ROW]
[ROW][C]Q20 excluded[/C][C]0.7844[/C][C]0.7883[/C][C]0.8437[/C][C]0.2529[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.775[/C][C]0.7825[/C][C]0.8359[/C][C]0.2465[/C][/ROW]
[ROW][C]Q22 excluded[/C][C]0.7905[/C][C]0.7899[/C][C]0.8355[/C][C]0.2548[/C][/ROW]
[ROW][C]Q27 excluded[/C][C]0.7768[/C][C]0.784[/C][C]0.8387[/C][C]0.2481[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.7691[/C][C]0.776[/C][C]0.8322[/C][C]0.2395[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=177392&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=177392&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	0.8003	0.8026	0.8575	0.253
Q3 excluded	0.8001	0.8006	0.8531	0.2675
Q7 excluded	0.7757	0.7804	0.8399	0.2442
Q8 excluded	0.7841	0.7817	0.8386	0.2456
Q10 excluded	0.7938	0.7941	0.8468	0.2596
Q14 excluded	0.7944	0.7973	0.8523	0.2634
Q15 excluded	0.7989	0.7982	0.8473	0.2645
Q17 excluded	0.7849	0.7855	0.844	0.2497
Q20 excluded	0.7844	0.7883	0.8437	0.2529
Q21 excluded	0.775	0.7825	0.8359	0.2465
Q22 excluded	0.7905	0.7899	0.8355	0.2548
Q27 excluded	0.7768	0.784	0.8387	0.2481
Q28 excluded	0.7691	0.776	0.8322	0.2395

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')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code