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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

Tue, 16 Dec 2014 19:48:27 +0000

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/2014/Dec/16/t14187593738684f7aulq6p55x.htm/, Retrieved Thu, 16 May 2024 11:42:11 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=269916, Retrieved Thu, 16 May 2024 11:42:11 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)

-       [Cronbach Alpha] [] [2014-12-16 19:48:27] [94ef54447bb0146b66f4a809a85d3ed7] [Current]

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Dataseries X:

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Boxplots

42,50	60,00	83,00
35,00	40,00	63,00
47,50	80,00	94,50
30,00	40,00	58,00
45,00	40,00	73,00
37,50	40,00	69,25
37,50	60,00	74,25
30,00	40,00	58,75
52,50	60,00	92,25
42,50	40,00	79,50
52,50	80,00	99,50
32,50	20,00	54,75
47,50	80,00	92,25
42,50	60,00	75,50
37,50	60,00	75,00
25,00	40,00	56,75
40,00	60,00	79,75
50,00	60,00	90,50
35,00	80,00	73,00
47,50	60,00	88,00
35,00	80,00	76,75
30,00	40,00	67,00
35,00	60,00	69,50
35,00	60,00	76,25
17,50	80,00	64,50
40,00	60,00	80,50
50,00	60,00	86,75
27,50	60,00	65,75
30,00	60,00	60,75
32,50	20,00	63,00
32,50	20,00	51,75
42,50	60,00	77,00
20,00	40,00	48,00
47,50	60,00	91,00
40,00	40,00	68,00
42,50	40,00	74,25
35,00	40,00	70,50
45,00	40,00	74,50
40,00	60,00	81,25
40,00	40,00	68,00
40,00	60,00	78,25
45,00	40,00	73,00
42,50	20,00	63,25
35,00	20,00	59,50
47,50	80,00	96,00
42,50	60,00	83,00
37,50	20,00	56,00
35,00	40,00	66,00
42,50	60,00	79,25
35,00	20,00	55,75
40,00	60,00	78,25
17,50	20,00	38,25
42,50	20,00	76,00
50,00	40,00	78,00
37,50	40,00	65,50
32,50	20,00	59,25
25,00	40,00	62,00
20,00	40,00	57,00
40,00	60,00	74,50
52,50	80,00	99,50
32,50	40,00	56,00
40,00	60,00	73,00
45,00	40,00	73,75
42,50	40,00	75,75
47,50	60,00	84,25
15,00	40,00	39,25
30,00	60,00	63,00
2,50	60,00	39,25
32,50	20,00	54,75
37,50	40,00	61,75
22,50	40,00	49,75
40,00	60,00	74,50
45,00	60,00	83,25
37,50	40,00	67,00
42,50	40,00	69,75
35,00	60,00	78,50
47,50	60,00	84,25
32,50	20,00	54,75
47,50	60,00	76,75
30,00	40,00	61,00
40,00	40,00	75,50
47,50	60,00	88,75
40,00	60,00	76,00
45,00	60,00	83,25
25,00	20,00	40,50
2,50	20,00	21,75
37,50	20,00	63,50
45,00	80,00	90,50
47,50	80,00	89,25
40,00	80,00	85,50
50,00	80,00	95,50
35,00	80,00	80,50
42,50	40,00	66,75
45,00	80,00	92,00
47,50	20,00	73,50
20,00	60,00	53,00
30,00	60,00	63,00
40,00	80,00	81,00
27,50	60,00	68,00
37,50	60,00	70,50
35,00	60,00	72,50
37,50	80,00	80,75
40,00	60,00	73,75
35,00	60,00	74,00
35,00	40,00	62,25
30,00	40,00	63,25
50,00	60,00	86,75
12,50	20,00	43,00
45,00	80,00	92,00
40,00	60,00	80,50
42,50	80,00	88,75
30,00	80,00	76,25
45,00	80,00	88,25
40,00	80,00	78,00
40,00	80,00	81,75
45,00	80,00	88,25
27,50	60,00	68,00
25,00	80,00	58,50
35,00	60,00	71,75
27,50	80,00	73,75
45,00	80,00	91,25
10,00	80,00	49,50
42,50	60,00	80,00
45,00	80,00	91,25
42,50	80,00	84,25
50,00	80,00	94,75
45,00	60,00	78,00
40,00	80,00	85,50
50,00	20,00	80,50
37,50	80,00	77,00
37,50	80,00	77,00
30,00	60,00	66,75
50,00	80,00	95,50
15,00	20,00	38,00
50,00	80,00	95,50
27,50	80,00	73,75
50,00	80,00	96,25
30,00	80,00	68,00
25,00	80,00	63,75
22,50	20,00	49,25
37,50	80,00	76,25
25,00	60,00	59,50
40,00	80,00	81,75
27,50	60,00	62,00
37,50	80,00	71,75
47,50	80,00	90,75
42,50	80,00	88,75
32,50	60,00	61,75
32,50	80,00	78,00
52,50	80,00	96,50
40,00	80,00	85,50
50,00	60,00	92,00
47,50	80,00	95,25
45,00	80,00	92,75
50,00	80,00	95,50
22,50	80,00	64,25
22,50	40,00	47,50
2,50	20,00	22,50
22,50	80,00	68,00
27,50	40,00	58,50
30,00	60,00	66,75
42,50	80,00	88,75
42,50	80,00	88,00
27,50	60,00	70,25
35,00	80,00	80,50
25,00	80,00	66,75
17,50	80,00	59,25
25,00	40,00	59,75
25,00	80,00	66,00
7,50	40,00	38,50
40,00	60,00	73,00

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	'George Udny Yule' @ yule.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 & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=269916&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]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=269916&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=269916&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	'George Udny Yule' @ yule.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7772	0.8247	0.9442	0.6106
EX excluded	0.7722	0.7929	0.6569	0.6569
PR excluded	0.9025	0.9352	0.8783	0.8783
TOT excluded	0.3891	0.4577	0.2967	0.2967

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7772 & 0.8247 & 0.9442 & 0.6106 \tabularnewline
EX excluded & 0.7722 & 0.7929 & 0.6569 & 0.6569 \tabularnewline
PR excluded & 0.9025 & 0.9352 & 0.8783 & 0.8783 \tabularnewline
TOT excluded & 0.3891 & 0.4577 & 0.2967 & 0.2967 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=269916&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]0.7772[/C][C]0.8247[/C][C]0.9442[/C][C]0.6106[/C][/ROW]
[ROW][C]EX excluded[/C][C]0.7722[/C][C]0.7929[/C][C]0.6569[/C][C]0.6569[/C][/ROW]
[ROW][C]PR excluded[/C][C]0.9025[/C][C]0.9352[/C][C]0.8783[/C][C]0.8783[/C][/ROW]
[ROW][C]TOT excluded[/C][C]0.3891[/C][C]0.4577[/C][C]0.2967[/C][C]0.2967[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=269916&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=269916&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	0.7772	0.8247	0.9442	0.6106
EX excluded	0.7722	0.7929	0.6569	0.6569
PR excluded	0.9025	0.9352	0.8783	0.8783
TOT excluded	0.3891	0.4577	0.2967	0.2967

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

R code (references can be found in the software module):

library(psych)
par1b <- T
if(par1=='FALSE') par1b <- F
z <- t(y)
(r <- alpha(z,check.keys=par1b))
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

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Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code