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Author's title

Author

*Unverified author*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Mon, 10 Aug 2020 18:56:56 +0200

Cite this page as follows

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2020/Aug/10/t1597078890nvs65teya0q8vnc.htm/, Retrieved Thu, 21 May 2026 16:20:44 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=319214, Retrieved Thu, 21 May 2026 16:20:44 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

495

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)

-       [Cronbach Alpha] [C] [2020-08-10 16:56:56] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

5	3	4	3	2	4	4	4
5	5	5	5	1	2	4	1
4	4	4	4	4	4	4	4
5	4	3	4	4	3	4	4
2	3	2	5	5	1	3	2
4	3	4	3	4	2	3	3
5	3	4	3	5	4	3	4
3	4	3	3	4	3	4	2
5	5	4	5	5	5	4	5
4	4	4	4	4	4	3	4
5	5	5	5	5	4	4	3
4	4	4	3	5	4	4	3
5	5	5	5	5	4	4	3
4	5	5	3	5	5	5	5
4	4	3	4	3	4	3	3
4	3	4	3	4	4	3	3
4	5	5	2	5	5	4	4
2	2	2	3	3	2	2	3
4	5	4	4	4	4	4	4
3	5	5	5	5	5	4	4
4	4	5	4	5	4	4	4
3	3	2	4	3	4	3	3
3	3	2	4	3	4	3	3
4	3	3	3	5	5	5	4
3	3	4	4	4	4	5	5
4	4	2	4	5	4	4	4
5	4	3	4	5	4	4	4
3	4	3	3	3	3	3	5
1	1	2	1	1	1	1	1
3	4	3	5	4	5	5	5
4	4	4	3	4	4	4	3
4	4	5	3	5	5	5	4
5	5	4	5	5	4	5	4
5	5	5	5	5	5	5	5
4	5	4	4	5	4	4	4
4	4	5	5	5	4	5	3
4	4	4	4	5	5	5	5
1	2	5	2	2	2	4	5
2	2	4	2	2	3	2	5
4	5	5	4	5	5	5	3
3	4	4	4	4	5	4	4
3	4	4	4	5	4	3	3
5	4	4	5	5	5	5	5
3	3	3	2	5	2	2	3
1	2	3	4	5	2	2	1
3	2	1	2	3	1	1	2
4	4	4	4	4	5	4	4
4	5	5	5	4	4	5	3
4	3	4	4	5	4	3	3
3	1	1	1	1	1	3	1
4	4	3	3	5	5	4	4
2	2	1	2	2	2	1	2
3	1	3	3	1	1	1	3
4	4	5	5	5	4	4	3
3	4	4	4	5	5	4	4
5	5	5	5	4	5	4	5
3	4	5	3	5	4	4	4
4	4	4	3	5	4	3	3
4	4	3	3	5	5	3	4
4	5	4	4	4	3	3	4
4	5	4	5	5	5	5	5
5	4	5	5	5	5	5	5
3	4	5	5	5	5	4	4
3	3	4	3	2	5	3	3
4	5	5	4	4	4	5	5
5	4	4	4	5	5	5	5
3	3	3	3	3	3	2	3
3	2	1	4	5	5	4	4
3	4	3	3	3	3	3	3
2	2	1	1	2	2	2	2
4	5	4	4	4	3	3	4
4	2	4	4	3	3	3	4
4	4	5	4	5	5	4	4

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	1 seconds
R Server	Big 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=319214&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=319214&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319214&T=0

As an alternative you can also use a 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 Output	view raw output of R engine
Computing time	1 seconds
R Server	Big Analytics Cloud Computing Center

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.9028	0.9031	0.9047	0.5382
Q1 excluded	0.8945	0.8948	0.895	0.5486
Q2 excluded	0.8816	0.8818	0.8777	0.5159
Q3 excluded	0.8945	0.8945	0.8938	0.5478
Q4 excluded	0.8943	0.8948	0.8947	0.5486
Q5 excluded	0.8953	0.8951	0.8941	0.5495
Q6 excluded	0.8822	0.8831	0.8781	0.5189
Q7 excluded	0.8805	0.8807	0.8809	0.5132
Q8 excluded	0.8992	0.9002	0.8963	0.5632

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.9028 & 0.9031 & 0.9047 & 0.5382 \tabularnewline
Q1 excluded & 0.8945 & 0.8948 & 0.895 & 0.5486 \tabularnewline
Q2 excluded & 0.8816 & 0.8818 & 0.8777 & 0.5159 \tabularnewline
Q3 excluded & 0.8945 & 0.8945 & 0.8938 & 0.5478 \tabularnewline
Q4 excluded & 0.8943 & 0.8948 & 0.8947 & 0.5486 \tabularnewline
Q5 excluded & 0.8953 & 0.8951 & 0.8941 & 0.5495 \tabularnewline
Q6 excluded & 0.8822 & 0.8831 & 0.8781 & 0.5189 \tabularnewline
Q7 excluded & 0.8805 & 0.8807 & 0.8809 & 0.5132 \tabularnewline
Q8 excluded & 0.8992 & 0.9002 & 0.8963 & 0.5632 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319214&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]0.9028[/C][C]0.9031[/C][C]0.9047[/C][C]0.5382[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.8945[/C][C]0.8948[/C][C]0.895[/C][C]0.5486[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.8816[/C][C]0.8818[/C][C]0.8777[/C][C]0.5159[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.8945[/C][C]0.8945[/C][C]0.8938[/C][C]0.5478[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.8943[/C][C]0.8948[/C][C]0.8947[/C][C]0.5486[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]0.8953[/C][C]0.8951[/C][C]0.8941[/C][C]0.5495[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.8822[/C][C]0.8831[/C][C]0.8781[/C][C]0.5189[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.8805[/C][C]0.8807[/C][C]0.8809[/C][C]0.5132[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.8992[/C][C]0.9002[/C][C]0.8963[/C][C]0.5632[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=319214&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319214&T=1

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.9028	0.9031	0.9047	0.5382
Q1 excluded	0.8945	0.8948	0.895	0.5486
Q2 excluded	0.8816	0.8818	0.8777	0.5159
Q3 excluded	0.8945	0.8945	0.8938	0.5478
Q4 excluded	0.8943	0.8948	0.8947	0.5486
Q5 excluded	0.8953	0.8951	0.8941	0.5495
Q6 excluded	0.8822	0.8831	0.8781	0.5189
Q7 excluded	0.8805	0.8807	0.8809	0.5132
Q8 excluded	0.8992	0.9002	0.8963	0.5632

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

R code (references can be found in the software module):

par1 <- 'FALSE'
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')

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Tables (Output of Computation)

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Input Parameters & R Code