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 computationTue, 19 Oct 2010 08:57:59 +0000
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2010/Oct/19/t1287478610pqh1m21hpfl5def.htm/, Retrieved Fri, 21 Feb 2025 18:18:16 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=85980, Retrieved Fri, 21 Feb 2025 18:18:16 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact211

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]
-    D  [Cronbach Alpha] [extrinsic1] [2010-10-15 11:42:48] [3074aa973ede76ac75d398946b01602f]
-           [Cronbach Alpha] [Identified] [2010-10-19 08:57:59] [733bf75cb326fe693c93e834bfd34d22] [Current]
Feedback Forum

Post a new message

Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
7	7	4	5
6	5	6	6
6	5	5	5
5	5	4	5
6	5	6	6
7	7	6	7
7	7	7	7
7	5	6	7
7	3	5	6
6	6	5	6
4	7	7	6
6	6	7	7
6	5	7	7
7	3	7	7
6	7	7	7
6	5	6	5
4	7	6	7
7	7	7	7
7	7	7	6
6	6	6	6
3	5	5	6
7	7	7	6
5	4	5	4
7	7	7	7
6	7	6	7
5	7	6	5
5	7	6	5
6	3	2	6
5	7	2	2
6	5	5	7
6	7	6	6
5	5	6	6
4	5	4	6
5	4	4	6
4	5	5	6
6	6	6	6
6	7	5	5
7	5	6	6
7	7	7	7
7	7	7	6
7	6	5	7
5	6	6	6
6	7	5	6
6	7	6	6
3	6	5	6
6	6	4	5
5	4	5	6
4	7	6	5
6	5	6	7
6	6	3	5
6	5	4	6
5	3	6	5
6	7	6	7
5	6	5	7
7	6	5	6
6	5	5	6
6	5	6	6
7	7	6	5
4	7	6	6
3	7	4	1
4	6	3	4
4	6	5	5
5	7	5	6
4	7	7	7
6	5	5	4
7	7	7	7
6	6	6	6
6	5	6	5
6	6	6	6
6	5	6	6
7	5	7	7
6	6	6	6
6	6	5	4
6	6	7	6
7	7	6	6
5	6	4	5
4	5	4	5
7	7	6	6
7	7	7	7
6	6	6	5
7	7	6	7
6	6	5	5
5	6	5	5
7	7	5	7
6	6	5	5
5	7	6	5
6	7	7	7
5	5	5	5
7	3	7	4
6	6	3	6
2	6	4	5
5	5	6	7
7	6	7	5
7	6	7	6
7	6	6	6
7	7	7	4
6	6	4	6
5	6	5	5
6	6	5	6
6	7	7	6
5	6	6	6
7	5	3	4
5	5	5	6
6	6	6	7
5	6	5	5
5	6	5	5
5	5	5	5
5	6	5	7
7	4	7	7
6	6	6	5
7	7	7	7
6	7	6	6
5	5	4	4
5	5	5	5
7	7	7	7
6	3	5	5
5	7	6	4
7	5	5	6
4	7	2	7
3	5	4	5
7	3	5	5
5	6	5	6
6	5	6	7
4	4	4	3
7	7	7	7
7	6	6	6
5	7	6	6
7	2	6	6
3	5	5	6
6	6	5	6
5	6	5	5
5	6	6	6
6	2	4	6
5	6	6	6
6	7	5	6
6	4	5	6
7	7	5	7
5	7	6	7
7	6	7	6
6	6	6	6
6	2	5	5
7	7	6	6
7	7	6	6
5	5	4	6
7	5	6	7
5	6	4	5
6	5	6	6
7	6	6	6
6	6	6	6
5	6	5	6
6	5	5	4
7	6	5	6
6	7	6	6
7	7	7	7
7	6	7	7
6	6	4	6
6	6	6	6
4	7	4	4
7	6	7	5
6	5	4	6
4	5	4	5
5	5	5	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'RServer@AstonUniversity' @ vre.aston.ac.uk

\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 & 'RServer@AstonUniversity' @ vre.aston.ac.uk \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=85980&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]'RServer@AstonUniversity' @ vre.aston.ac.uk[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=85980&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=85980&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'RServer@AstonUniversity' @ vre.aston.ac.uk






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.60290.60950.57610.2806
Q3 excluded0.540.54590.4740.2861
Q10 excluded0.68030.68030.59080.415
Q17 excluded0.37880.39310.3320.1776
Q24 excluded0.48840.49190.44520.244

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.6029 & 0.6095 & 0.5761 & 0.2806 \tabularnewline
Q3 excluded & 0.54 & 0.5459 & 0.474 & 0.2861 \tabularnewline
Q10 excluded & 0.6803 & 0.6803 & 0.5908 & 0.415 \tabularnewline
Q17 excluded & 0.3788 & 0.3931 & 0.332 & 0.1776 \tabularnewline
Q24 excluded & 0.4884 & 0.4919 & 0.4452 & 0.244 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=85980&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]0.6029[/C][C]0.6095[/C][C]0.5761[/C][C]0.2806[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.54[/C][C]0.5459[/C][C]0.474[/C][C]0.2861[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.6803[/C][C]0.6803[/C][C]0.5908[/C][C]0.415[/C][/ROW]
[ROW][C]Q17 excluded[/C][C]0.3788[/C][C]0.3931[/C][C]0.332[/C][C]0.1776[/C][/ROW]
[ROW][C]Q24 excluded[/C][C]0.4884[/C][C]0.4919[/C][C]0.4452[/C][C]0.244[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=85980&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=85980&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 itmes0.60290.60950.57610.2806
Q3 excluded0.540.54590.4740.2861
Q10 excluded0.68030.68030.59080.415
Q17 excluded0.37880.39310.3320.1776
Q24 excluded0.48840.49190.44520.244


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
Parameters (R input):
par1 = ; par2 = ; par3 = ; par4 = ; par5 = ; par6 = ; par7 = ; par8 = ; par9 = ; par10 = ; par11 = ; par12 = ; par13 = ; par14 = ; par15 = ; par16 = ; par17 = ; par18 = ; par19 = ; par20 = ;
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')