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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, 18 Oct 2011 10:22:04 -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/2011/Oct/18/t1318947733cdb9sm0d3gtf866.htm/, Retrieved Thu, 16 May 2024 05:42:30 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=131993, Retrieved Thu, 16 May 2024 05:42:30 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

101

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

-       [Cronbach Alpha] [] [2011-10-18 14:22:04] [44862125718ce971d51d71f1796e585f] [Current]

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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	'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=131993&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=131993&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=131993&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	'Gertrude Mary Cox' @ cox.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7739	0.822	0.7958	0.5359
Q1 excluded	0.7381	0.781	0.7231	0.5431
Q8 excluded	0.7715	0.8146	0.7523	0.5943
Q15 excluded	0.6449	0.7589	0.6862	0.512
Q22 excluded	0.7067	0.7456	0.6802	0.4942

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7739 & 0.822 & 0.7958 & 0.5359 \tabularnewline
Q1 excluded & 0.7381 & 0.781 & 0.7231 & 0.5431 \tabularnewline
Q8 excluded & 0.7715 & 0.8146 & 0.7523 & 0.5943 \tabularnewline
Q15 excluded & 0.6449 & 0.7589 & 0.6862 & 0.512 \tabularnewline
Q22 excluded & 0.7067 & 0.7456 & 0.6802 & 0.4942 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=131993&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]0.7739[/C][C]0.822[/C][C]0.7958[/C][C]0.5359[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.7381[/C][C]0.781[/C][C]0.7231[/C][C]0.5431[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.7715[/C][C]0.8146[/C][C]0.7523[/C][C]0.5943[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.6449[/C][C]0.7589[/C][C]0.6862[/C][C]0.512[/C][/ROW]
[ROW][C]Q22 excluded[/C][C]0.7067[/C][C]0.7456[/C][C]0.6802[/C][C]0.4942[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=131993&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=131993&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	0.7739	0.822	0.7958	0.5359
Q1 excluded	0.7381	0.781	0.7231	0.5431
Q8 excluded	0.7715	0.8146	0.7523	0.5943
Q15 excluded	0.6449	0.7589	0.6862	0.512
Q22 excluded	0.7067	0.7456	0.6802	0.4942

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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