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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 Nov 2010 21:07:03 +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/2010/Nov/15/t1289855164lcv44ip7xg19wwb.htm/, Retrieved Sun, 28 Apr 2024 15:44:46 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=95076, Retrieved Sun, 28 Apr 2024 15:44:46 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

128

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] [Chronbach Alpha p...] [2010-11-15 21:01:02] [97ad38b1c3b35a5feca8b85f7bc7b3ff]
-    D      [Cronbach Alpha] [Chronbach alpha p...] [2010-11-15 21:07:03] [9ea95e194e0eb2a674315798620d5bc6] [Current]
-    D        [Cronbach Alpha] [Chronbach Alpha p...] [2010-11-15 21:09:15] [97ad38b1c3b35a5feca8b85f7bc7b3ff] 
-    D          [Cronbach Alpha] [Chronbach Alpha f...] [2010-11-15 21:24:10] [97ad38b1c3b35a5feca8b85f7bc7b3ff] 
-    D            [Cronbach Alpha] [Chronbach Alpha k...] [2010-11-15 21:26:11] [97ad38b1c3b35a5feca8b85f7bc7b3ff] 
-    D              [Cronbach Alpha] [Chronbach Alpha] [2010-11-15 21:27:57] [74be16979710d4c4e7c6647856088456] 
-    D              [Cronbach Alpha] [Chronbach Alpha l...] [2010-11-15 21:27:57] [97ad38b1c3b35a5feca8b85f7bc7b3ff] 
-    D                [Cronbach Alpha] [Chronbach Alpha c...] [2010-11-15 21:29:32] [97ad38b1c3b35a5feca8b85f7bc7b3ff] 
-    D        [Cronbach Alpha] [Chronbach Alpha p...] [2010-12-07 19:04:03] [97ad38b1c3b35a5feca8b85f7bc7b3ff] 

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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	'George Udny Yule' @ 72.249.76.132

\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' @ 72.249.76.132 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=95076&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' @ 72.249.76.132[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=95076&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=95076&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' @ 72.249.76.132

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.8505	0.8515	0.8413	0.5342
Q1_1 excluded	0.8209	0.8215	0.7835	0.535
Q1_2 excluded	0.7902	0.7941	0.752	0.4909
Q1_6 excluded	0.8322	0.8349	0.8176	0.5583
Q1_11 excluded	0.8194	0.8193	0.7918	0.5313
-Q1_16 excluded	0.8327	0.8334	0.8088	0.5557

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8505 & 0.8515 & 0.8413 & 0.5342 \tabularnewline
Q1_1 excluded & 0.8209 & 0.8215 & 0.7835 & 0.535 \tabularnewline
Q1_2 excluded & 0.7902 & 0.7941 & 0.752 & 0.4909 \tabularnewline
Q1_6 excluded & 0.8322 & 0.8349 & 0.8176 & 0.5583 \tabularnewline
Q1_11 excluded & 0.8194 & 0.8193 & 0.7918 & 0.5313 \tabularnewline
-Q1_16 excluded & 0.8327 & 0.8334 & 0.8088 & 0.5557 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=95076&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]0.8505[/C][C]0.8515[/C][C]0.8413[/C][C]0.5342[/C][/ROW]
[ROW][C]Q1_1 excluded[/C][C]0.8209[/C][C]0.8215[/C][C]0.7835[/C][C]0.535[/C][/ROW]
[ROW][C]Q1_2 excluded[/C][C]0.7902[/C][C]0.7941[/C][C]0.752[/C][C]0.4909[/C][/ROW]
[ROW][C]Q1_6 excluded[/C][C]0.8322[/C][C]0.8349[/C][C]0.8176[/C][C]0.5583[/C][/ROW]
[ROW][C]Q1_11 excluded[/C][C]0.8194[/C][C]0.8193[/C][C]0.7918[/C][C]0.5313[/C][/ROW]
[ROW][C]-Q1_16 excluded[/C][C]0.8327[/C][C]0.8334[/C][C]0.8088[/C][C]0.5557[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=95076&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=95076&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	0.8505	0.8515	0.8413	0.5342
Q1_1 excluded	0.8209	0.8215	0.7835	0.535
Q1_2 excluded	0.7902	0.7941	0.752	0.4909
Q1_6 excluded	0.8322	0.8349	0.8176	0.5583
Q1_11 excluded	0.8194	0.8193	0.7918	0.5313
-Q1_16 excluded	0.8327	0.8334	0.8088	0.5557

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