Repository of Reproducible Computations

Free Statistics

of Irreproducible Research!

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 10:20:01 -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/t1318947610q00muxnkgusncl3.htm/, Retrieved Thu, 16 May 2024 20:38:52 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=131988, Retrieved Thu, 16 May 2024 20:38:52 +0000

QR Codes:

Paste this QR Code to cite your computation.

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] [] [2011-10-18 14:20:01] [44862125718ce971d51d71f1796e585f] [Current]

Feedback Forum

Post a new message

Dataseries X:

Download CSV

Histogram

Boxplots

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	'AstonUniversity' @ aston.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 & 2 seconds \tabularnewline
R Server & 'AstonUniversity' @ aston.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=131988&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]'AstonUniversity' @ aston.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=131988&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=131988&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	'AstonUniversity' @ aston.wessa.net

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.7869	0.7924	0.7852	0.4882
Q7 excluded	0.7597	0.7659	0.7223	0.5216
Q14 excluded	0.7988	0.7987	0.751	0.5694
Q21 excluded	0.6791	0.6929	0.6369	0.4293
Q28 excluded	0.695	0.6958	0.6263	0.4326

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7869 & 0.7924 & 0.7852 & 0.4882 \tabularnewline
Q7 excluded & 0.7597 & 0.7659 & 0.7223 & 0.5216 \tabularnewline
Q14 excluded & 0.7988 & 0.7987 & 0.751 & 0.5694 \tabularnewline
Q21 excluded & 0.6791 & 0.6929 & 0.6369 & 0.4293 \tabularnewline
Q28 excluded & 0.695 & 0.6958 & 0.6263 & 0.4326 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=131988&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]0.7869[/C][C]0.7924[/C][C]0.7852[/C][C]0.4882[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.7597[/C][C]0.7659[/C][C]0.7223[/C][C]0.5216[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.7988[/C][C]0.7987[/C][C]0.751[/C][C]0.5694[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.6791[/C][C]0.6929[/C][C]0.6369[/C][C]0.4293[/C][/ROW]
[ROW][C]Q28 excluded[/C][C]0.695[/C][C]0.6958[/C][C]0.6263[/C][C]0.4326[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=131988&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=131988&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	0.7869	0.7924	0.7852	0.4882
Q7 excluded	0.7597	0.7659	0.7223	0.5216
Q14 excluded	0.7988	0.7987	0.751	0.5694
Q21 excluded	0.6791	0.6929	0.6369	0.4293
Q28 excluded	0.695	0.6958	0.6263	0.4326

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