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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 computationTue, 16 Dec 2014 13:09:02 +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/2014/Dec/16/t1418735367skamv8arsnjew8f.htm/, Retrieved Thu, 16 May 2024 17:13:19 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=269480, Retrieved Thu, 16 May 2024 17:13:19 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact67

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [Parents Critisism 1] [2014-12-16 13:09:02] [ecc8a223a6799628ce1dc096d32923a0] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
1 3 1 1 1
2 1 2 2 1
1 2 2 2 2
2 3 3 3 4
2 1 2 1 2
2 2 3 3 3
2 2 2 4 2
4 2 2 2 2
2 2 4 2 2
3 4 2 2 2
2 2 1 1 1
2 2 2 2 1
2 2 2 2 2
2 2 2 3 2
1 1 1 2 1
2 2 2 2 2
5 4 4 5 4
1 2 4 2 1
3 2 2 3 3
3 3 3 3 3
1 2 2 2 1
4 2 2 3 1
3 3 2 4 2
2 2 2 1 2
3 3 3 3 3
3 3 3 3 3
2 2 2 2 2
2 4 2 2 4
1 2 2 2 1
2 3 1 1 1
4 2 4 4 4
2 3 5 1 5
3 2 2 2 2
5 5 5 2 4
4 2 2 2 2
2 1 1 2 2
2 2 1 2 1
2 1 1 2 2
2 2 2 2 2
1 2 1 1 1
1 2 1 1 1
2 2 2 2 2
5 5 3 2 0
1 2 1 1 1
2 3 3 3 3
3 2 2 2 2
1 2 1 1 1
1 1 2 2 2
3 5 3 4 5
2 3 2 2 2
2 2 1 1 1
2 4 3 2 2
1 1 1 3 2
1 3 4 3 3
2 4 1 1 1
2 2 1 1 1
3 2 2 4 2
1 2 1 2 2
1 3 2 2 2
4 2 2 2 0
2 2 1 1 1
3 1 1 1 1
3 4 3 2 1
1 2 1 1 1
4 2 3 2 2
1 1 2 2 2
2 2 3 2 2
1 1 1 2 1
1 5 1 4 1
1 1 1 1 1
2 2 2 2 2
4 2 4 2 2
2 2 2 2 2
2 2 2 2 2
2 2 1 1 1
3 2 2 3 1
3 2 1 1 1
2 2 2 2 2
2 2 1 4 1
1 1 1 1 1
1 1 1 1 1
2 1 1 1 1
1 1 1 1 1
1 2 1 2 2
3 4 2 2 2
3 3 4 3 3
1 2 3 3 2
2 2 1 2 2
2 2 5 4 5
3 1 2 4 1
1 1 1 1 1
2 2 2 2 2
2 2 4 2 4
3 2 1 2 2
2 2 2 3 2
1 1 1 2 2
1 2 3 4 3
1 2 2 2 2
1 2 2 2 2
1 3 2 2 2
3 3 4 2 2
4 3 3 3 3
2 2 3 2 2
2 2 2 2 2
2 1 1 2 1
3 4 3 4 1
3 3 2 2 2
2 2 2 2 2
1 1 1 1 1
2 1 1 2 1
1 1 1 1 2

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=269480&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=269480&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=269480&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 itmes0.77950.77850.7670.4128
PERF3 excluded0.76640.76420.73210.4476
PERF5 excluded0.75560.75510.73560.4354
PERF22 excluded0.68280.68430.63510.3514
PERF26 excluded0.7480.74680.73130.4244
PERF35 excluded0.73250.73160.67730.4053

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7795 & 0.7785 & 0.767 & 0.4128 \tabularnewline
PERF3 excluded & 0.7664 & 0.7642 & 0.7321 & 0.4476 \tabularnewline
PERF5 excluded & 0.7556 & 0.7551 & 0.7356 & 0.4354 \tabularnewline
PERF22 excluded & 0.6828 & 0.6843 & 0.6351 & 0.3514 \tabularnewline
PERF26 excluded & 0.748 & 0.7468 & 0.7313 & 0.4244 \tabularnewline
PERF35 excluded & 0.7325 & 0.7316 & 0.6773 & 0.4053 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=269480&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]0.7795[/C][C]0.7785[/C][C]0.767[/C][C]0.4128[/C][/ROW]
[ROW][C]PERF3 excluded[/C][C]0.7664[/C][C]0.7642[/C][C]0.7321[/C][C]0.4476[/C][/ROW]
[ROW][C]PERF5 excluded[/C][C]0.7556[/C][C]0.7551[/C][C]0.7356[/C][C]0.4354[/C][/ROW]
[ROW][C]PERF22 excluded[/C][C]0.6828[/C][C]0.6843[/C][C]0.6351[/C][C]0.3514[/C][/ROW]
[ROW][C]PERF26 excluded[/C][C]0.748[/C][C]0.7468[/C][C]0.7313[/C][C]0.4244[/C][/ROW]
[ROW][C]PERF35 excluded[/C][C]0.7325[/C][C]0.7316[/C][C]0.6773[/C][C]0.4053[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=269480&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=269480&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 itmes0.77950.77850.7670.4128
PERF3 excluded0.76640.76420.73210.4476
PERF5 excluded0.75560.75510.73560.4354
PERF22 excluded0.68280.68430.63510.3514
PERF26 excluded0.7480.74680.73130.4244
PERF35 excluded0.73250.73160.67730.4053


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')