FreeStatistics.org

Free Statistics

of Irreproducible Research!

Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationSat, 15 Oct 2011 16:39:04 -0400
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2011/Oct/15/t1318711165zy4nlze4jwy1f4y.htm/, Retrieved Wed, 15 May 2024 00:33:13 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=129899, Retrieved Wed, 15 May 2024 00:33:13 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact103

Tree of Dependent Computations

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]
- R  D    [Cronbach Alpha] [] [2011-10-15 20:39:04] [43f1c1fe5c2aaa4d7bd6f731e1a494da] [Current]
Feedback Forum

Post a new message

Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
4	4	5	7
5	5	5	5
4	4	5	5
3	3	6	6
6	6	6	6
5	5	5	7
5	5	5	6
1	1	6	7
4	4	7	7
5	5	6	6
6	6	7	7
7	7	6	7
5	5	6	5
6	6	6	6
5	5	6	7
4	4	6	6
7	7	7	7
7	7	7	7
6	6	7	7
6	6	6	6
2	2	5	4
7	7	7	7
5	5	5	6
4	4	7	7
7	7	6	7
1	1	2	5
1	1	2	5
7	7	7	7
4	4	4	6
5	5	4	6
5	5	5	6
5	5	5	6
4	4	4	1
5	5	7	5
5	5	7	7
4	4	4	5
7	7	7	7
7	7	4	5
7	7	6	7
4	4	6	6
7	7	6	7
7	7	6	6
4	4	6	6
3	3	7	5
2	2	6	6
6	6	6	6
4	4	4	5
5	5	7	7
4	4	6	6
7	7	7	7
4	4	6	5
6	6	7	5
7	7	7	7
1	1	2	3
5	5	6	6
4	4	6	6
5	5	5	5
5	5	6	6
5	5	6	6
5	5	6	7
5	5	6	7
5	5	6	6
6	6	4	5
3	3	3	4
4	4	4	5
6	6	7	6
6	6	6	6
3	3	6	7
5	5	7	6
2	2	7	7
7	7	7	7
7	7	5	7
4	4	6	6
6	6	3	5
6	6	6	7
3	3	5	5
3	3	5	5
6	6	6	6
7	7	6	7
3	3	4	3
1	1	4	4
5	5	5	5
5	5	6	6
5	5	5	6
5	5	5	6
6	6	6	6
6	6	7	7
5	5	5	7
7	7	7	7
6	6	7	7
1	1	2	2
3	3	5	5
5	5	4	6
1	1	7	6
6	6	6	6
4	4	7	7
5	5	5	5
5	5	5	5
6	6	4	6
5	5	7	6
5	5	5	7
4	4	4	4
6	6	6	6
6	6	6	6
4	4	5	5
5	5	5	5
5	5	3	5
2	2	5	6
7	7	6	7
5	5	6	6
5	5	7	7
2	2	7	7
3	3	5	5
5	5	5	6
5	5	6	7
5	5	4	7
6	6	7	7
6	6	5	7
4	4	6	5
6	6	7	7
3	3	7	7
6	6	6	6
4	4	6	5
3	3	4	5
4	4	7	7
6	6	6	7
4	4	5	6
6	6	6	6
5	5	5	6
5	5	5	6
5	5	6	6
3	3	6	6
5	5	4	5
4	4	6	6
5	5	7	7
5	5	6	6
1	1	7	7
4	4	7	7
7	7	6	6
4	4	5	6
6	6	5	7
7	7	5	5
6	6	7	5
5	5	3	6
6	6	6	7
5	5	5	5
5	5	7	7
6	6	4	5
5	5	6	6
3	3	4	5
6	6	6	7
7	7	7	7
4	4	4	5
5	5	6	7
4	4	7	6
5	5	5	6
2	2	6	6
7	7	4	7
5	5	4	6
4	4	6	5
2	2	4	5
4	4	6	5

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 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=129899&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=129899&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=129899&T=0

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'George Udny Yule' @ yule.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.81370.811610.5186
Q1 excluded0.68130.71420.65180.4544
Q8 excluded0.68130.71420.65180.4544
Q15 excluded0.84280.828510.6169
Q22 excluded0.80330.784710.5485

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8137 & 0.8116 & 1 & 0.5186 \tabularnewline
Q1 excluded & 0.6813 & 0.7142 & 0.6518 & 0.4544 \tabularnewline
Q8 excluded & 0.6813 & 0.7142 & 0.6518 & 0.4544 \tabularnewline
Q15 excluded & 0.8428 & 0.8285 & 1 & 0.6169 \tabularnewline
Q22 excluded & 0.8033 & 0.7847 & 1 & 0.5485 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=129899&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]0.8137[/C][C]0.8116[/C][C]1[/C][C]0.5186[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.6813[/C][C]0.7142[/C][C]0.6518[/C][C]0.4544[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.6813[/C][C]0.7142[/C][C]0.6518[/C][C]0.4544[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.8428[/C][C]0.8285[/C][C]1[/C][C]0.6169[/C][/ROW]
[ROW][C]Q22 excluded[/C][C]0.8033[/C][C]0.7847[/C][C]1[/C][C]0.5485[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=129899&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=129899&T=1

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.81370.811610.5186
Q1 excluded0.68130.71420.65180.4544
Q8 excluded0.68130.71420.65180.4544
Q15 excluded0.84280.828510.6169
Q22 excluded0.80330.784710.5485


Figures (Output of Computation)

Input Parameters & R Code

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')