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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Module--
Title produced by softwareCronbach Alpha
Date of computationWed, 23 Oct 2013 11:57:39 -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/2013/Oct/23/t13825438769h1ykzz04be4n0s.htm/, Retrieved Sat, 27 Apr 2024 18:37:45 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=219058, Retrieved Sat, 27 Apr 2024 18:37:45 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact70

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 11:46:14] [b98453cac15ba1066b407e146608df68]
- R  D  [Cronbach Alpha] [] [2013-10-23 13:18:44] [f4fa611074bbaf9f95df1d3763dcf0c9]
- RM        [Cronbach Alpha] [WS 3 task 2] [2013-10-23 15:57:39] [3ab494e3ec4169588a52211572c2f14a] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'Gwilym Jenkins' @ jenkins.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 & 'Gwilym Jenkins' @ jenkins.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=219058&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]'Gwilym Jenkins' @ jenkins.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=219058&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=219058&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 time2 seconds
R Server'Gwilym Jenkins' @ jenkins.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.79680.80230.77750.5037
Q1_7 excluded0.77220.77740.7230.5379
Q1_14 excluded0.8190.82050.76160.6038
Q1_21 excluded0.68170.69550.63660.4322
Q1_28 excluded0.69990.70280.64050.4408

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7968 & 0.8023 & 0.7775 & 0.5037 \tabularnewline
Q1_7 excluded & 0.7722 & 0.7774 & 0.723 & 0.5379 \tabularnewline
Q1_14 excluded & 0.819 & 0.8205 & 0.7616 & 0.6038 \tabularnewline
Q1_21 excluded & 0.6817 & 0.6955 & 0.6366 & 0.4322 \tabularnewline
Q1_28 excluded & 0.6999 & 0.7028 & 0.6405 & 0.4408 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=219058&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]0.7968[/C][C]0.8023[/C][C]0.7775[/C][C]0.5037[/C][/ROW]
[ROW][C]Q1_7 excluded[/C][C]0.7722[/C][C]0.7774[/C][C]0.723[/C][C]0.5379[/C][/ROW]
[ROW][C]Q1_14 excluded[/C][C]0.819[/C][C]0.8205[/C][C]0.7616[/C][C]0.6038[/C][/ROW]
[ROW][C]Q1_21 excluded[/C][C]0.6817[/C][C]0.6955[/C][C]0.6366[/C][C]0.4322[/C][/ROW]
[ROW][C]Q1_28 excluded[/C][C]0.6999[/C][C]0.7028[/C][C]0.6405[/C][C]0.4408[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=219058&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=219058&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 itmes0.79680.80230.77750.5037
Q1_7 excluded0.77220.77740.7230.5379
Q1_14 excluded0.8190.82050.76160.6038
Q1_21 excluded0.68170.69550.63660.4322
Q1_28 excluded0.69990.70280.64050.4408


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')