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Description of Statistical Computation

Author's title

Author*Unverified author*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationTue, 14 May 2024 04:28:32 +0200
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2024/May/14/t1715653754yre44hdm8q2nyii.htm/, Retrieved Tue, 22 Sep 2026 08:26:53 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=320078, Retrieved Tue, 22 Sep 2026 08:26:53 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact345

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [] [2024-05-14 02:28:32] [d41d8cd98f00b204e9800998ecf8427e] [Current]
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Dataset

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

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=320078&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=320078&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320078&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 items0.80210.82630.89350.4876
Q1 excluded0.79140.78940.86620.4837
Q2 excluded0.80160.81910.80460.5309
Q3 excluded0.81060.85120.87670.5885
Q4 excluded0.70770.760.8490.4418
Q5 excluded0.66890.72130.76660.3929

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All items & 0.8021 & 0.8263 & 0.8935 & 0.4876 \tabularnewline
Q1 excluded & 0.7914 & 0.7894 & 0.8662 & 0.4837 \tabularnewline
Q2 excluded & 0.8016 & 0.8191 & 0.8046 & 0.5309 \tabularnewline
Q3 excluded & 0.8106 & 0.8512 & 0.8767 & 0.5885 \tabularnewline
Q4 excluded & 0.7077 & 0.76 & 0.849 & 0.4418 \tabularnewline
Q5 excluded & 0.6689 & 0.7213 & 0.7666 & 0.3929 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=320078&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 items[/C][C]0.8021[/C][C]0.8263[/C][C]0.8935[/C][C]0.4876[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.7914[/C][C]0.7894[/C][C]0.8662[/C][C]0.4837[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.8016[/C][C]0.8191[/C][C]0.8046[/C][C]0.5309[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.8106[/C][C]0.8512[/C][C]0.8767[/C][C]0.5885[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.7077[/C][C]0.76[/C][C]0.849[/C][C]0.4418[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]0.6689[/C][C]0.7213[/C][C]0.7666[/C][C]0.3929[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=320078&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=320078&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 items0.80210.82630.89350.4876
Q1 excluded0.79140.78940.86620.4837
Q2 excluded0.80160.81910.80460.5309
Q3 excluded0.81060.85120.87670.5885
Q4 excluded0.70770.760.8490.4418
Q5 excluded0.66890.72130.76660.3929


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 items',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')