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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 computationMon, 23 Jan 2017 09:21:08 +0100
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2017/Jan/23/t148515969049egvu8xb0888bu.htm/, Retrieved Wed, 15 May 2024 04:30:14 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=303740, Retrieved Wed, 15 May 2024 04:30:14 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact64

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [vraag 2] [2017-01-23 08:21:08] [bf81c5bba8521cd7c521397a61beff5a] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
1 0 0 0 3.2 6
0 1 0 1 3.3 7
0 1 1 1 3 2
0 1 0 1 3.5 11
0 1 0 0 3.7 13
1 0 0 0 2.7 3
0 1 1 1 3.6 17
0 1 0 1 3.5 10
1 0 0 0 3.8 4
0 1 0 0 3.4 12
0 0 0 1 3.7 7
0 1 0 0 3.5 11
0 0 1 0 2.8 3
1 0 1 0 3.8 5
0 1 0 0 4.3 1
0 0 0 1 3.3 12
0 0 0 0 3.6 18
1 0 1 0 3.6 8
1 1 0 0 3.3 6
0 0 0 0 2.8 1

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R ServerBig Analytics Cloud Computing Center

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input view raw input (R code)  \tabularnewline
Raw Outputview raw output of R engine  \tabularnewline
Computing time1 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=303740&T=0

[TABLE]
[ROW]
Summary of computational transaction[/C][/ROW] [ROW]Raw Input[/C] view raw input (R code) [/C][/ROW] [ROW]Raw Output[/C]view raw output of R engine [/C][/ROW] [ROW]Computing time[/C]1 seconds[/C][/ROW] [ROW]R Server[/C]Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=303740&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=303740&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 Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R ServerBig Analytics Cloud Computing Center






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.23170.59450.60310.1964
X1 excluded0.17350.47490.45920.1532
X2 excluded0.18640.48920.49840.1607
X3 excluded0.22510.6340.62510.2573
X4 excluded0.19370.55330.53770.1985
X5 excluded0.20360.60180.58790.2321
Score excluded0.5350.5170.5280.1763

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.2317 & 0.5945 & 0.6031 & 0.1964 \tabularnewline
X1 excluded & 0.1735 & 0.4749 & 0.4592 & 0.1532 \tabularnewline
X2 excluded & 0.1864 & 0.4892 & 0.4984 & 0.1607 \tabularnewline
X3 excluded & 0.2251 & 0.634 & 0.6251 & 0.2573 \tabularnewline
X4 excluded & 0.1937 & 0.5533 & 0.5377 & 0.1985 \tabularnewline
X5 excluded & 0.2036 & 0.6018 & 0.5879 & 0.2321 \tabularnewline
Score excluded & 0.535 & 0.517 & 0.528 & 0.1763 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=303740&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]0.2317[/C][C]0.5945[/C][C]0.6031[/C][C]0.1964[/C][/ROW]
[ROW][C]X1 excluded[/C][C]0.1735[/C][C]0.4749[/C][C]0.4592[/C][C]0.1532[/C][/ROW]
[ROW][C]X2 excluded[/C][C]0.1864[/C][C]0.4892[/C][C]0.4984[/C][C]0.1607[/C][/ROW]
[ROW][C]X3 excluded[/C][C]0.2251[/C][C]0.634[/C][C]0.6251[/C][C]0.2573[/C][/ROW]
[ROW][C]X4 excluded[/C][C]0.1937[/C][C]0.5533[/C][C]0.5377[/C][C]0.1985[/C][/ROW]
[ROW][C]X5 excluded[/C][C]0.2036[/C][C]0.6018[/C][C]0.5879[/C][C]0.2321[/C][/ROW]
[ROW][C]Score excluded[/C][C]0.535[/C][C]0.517[/C][C]0.528[/C][C]0.1763[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=303740&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=303740&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 itmes0.23170.59450.60310.1964
X1 excluded0.17350.47490.45920.1532
X2 excluded0.18640.48920.49840.1607
X3 excluded0.22510.6340.62510.2573
X4 excluded0.19370.55330.53770.1985
X5 excluded0.20360.60180.58790.2321
Score excluded0.5350.5170.5280.1763


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = TRUE ;
Parameters (R input):
par1 = TRUE ;
R code (references can be found in the software module):
library(psych)
par1b <- T
if(par1=='FALSE') par1b <- F
z <- t(y)
(r <- alpha(z,check.keys=par1b))
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')