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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

Wed, 05 Dec 2018 10:01:06 +0100

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/2018/Dec/05/t1544000591mictml9cahy4tou.htm/, Retrieved Fri, 03 May 2024 18:09:07 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=315766, Retrieved Fri, 03 May 2024 18:09:07 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

107

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

-       [Cronbach Alpha] [Lab 9 Research Qu...] [2018-12-05 09:01:06] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

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

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 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 time2 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=315766&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]

2 seconds[/C][/ROW] [ROW]

R Server[/C]

Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=315766&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=315766&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	2 seconds
R Server	Big Analytics Cloud Computing Center

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.4031	0.4177	0.5428	0.0383
Q1 excluded	0.4066	0.4407	0.5511	0.0443
Q2 excluded	0.3677	0.3534	0.486	0.0311
Q3 excluded	0.4166	0.4208	0.5371	0.041
Q4 excluded	0.4412	0.4558	0.5607	0.047
Q5 excluded	0.3371	0.3506	0.4817	0.0308
Q6 excluded	0.373	0.3857	0.509	0.0356
Q7 excluded	0.4003	0.4162	0.5225	0.0403
Q8 excluded	0.4037	0.4354	0.5538	0.0434
Q9 excluded	0.4052	0.4147	0.5319	0.04
Q10 excluded	0.4299	0.4314	0.5524	0.0427
Q11 excluded	0.4058	0.4244	0.5427	0.0416
Q12 excluded	0.3848	0.4001	0.5233	0.0378
Q13 excluded	0.3844	0.4103	0.5266	0.0393
Q14 excluded	0.3917	0.3963	0.5145	0.0372
Q15 excluded	0.4061	0.4339	0.5437	0.0431
Q16 excluded	0.3368	0.3577	0.4871	0.0317
Q17 excluded	0.3363	0.3491	0.4845	0.0306
Q18 excluded	0.3603	0.3639	0.4944	0.0326

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.4031 & 0.4177 & 0.5428 & 0.0383 \tabularnewline
Q1 excluded & 0.4066 & 0.4407 & 0.5511 & 0.0443 \tabularnewline
Q2 excluded & 0.3677 & 0.3534 & 0.486 & 0.0311 \tabularnewline
Q3 excluded & 0.4166 & 0.4208 & 0.5371 & 0.041 \tabularnewline
Q4 excluded & 0.4412 & 0.4558 & 0.5607 & 0.047 \tabularnewline
Q5 excluded & 0.3371 & 0.3506 & 0.4817 & 0.0308 \tabularnewline
Q6 excluded & 0.373 & 0.3857 & 0.509 & 0.0356 \tabularnewline
Q7 excluded & 0.4003 & 0.4162 & 0.5225 & 0.0403 \tabularnewline
Q8 excluded & 0.4037 & 0.4354 & 0.5538 & 0.0434 \tabularnewline
Q9 excluded & 0.4052 & 0.4147 & 0.5319 & 0.04 \tabularnewline
Q10 excluded & 0.4299 & 0.4314 & 0.5524 & 0.0427 \tabularnewline
Q11 excluded & 0.4058 & 0.4244 & 0.5427 & 0.0416 \tabularnewline
Q12 excluded & 0.3848 & 0.4001 & 0.5233 & 0.0378 \tabularnewline
Q13 excluded & 0.3844 & 0.4103 & 0.5266 & 0.0393 \tabularnewline
Q14 excluded & 0.3917 & 0.3963 & 0.5145 & 0.0372 \tabularnewline
Q15 excluded & 0.4061 & 0.4339 & 0.5437 & 0.0431 \tabularnewline
Q16 excluded & 0.3368 & 0.3577 & 0.4871 & 0.0317 \tabularnewline
Q17 excluded & 0.3363 & 0.3491 & 0.4845 & 0.0306 \tabularnewline
Q18 excluded & 0.3603 & 0.3639 & 0.4944 & 0.0326 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=315766&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]0.4031[/C][C]0.4177[/C][C]0.5428[/C][C]0.0383[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.4066[/C][C]0.4407[/C][C]0.5511[/C][C]0.0443[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.3677[/C][C]0.3534[/C][C]0.486[/C][C]0.0311[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.4166[/C][C]0.4208[/C][C]0.5371[/C][C]0.041[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.4412[/C][C]0.4558[/C][C]0.5607[/C][C]0.047[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]0.3371[/C][C]0.3506[/C][C]0.4817[/C][C]0.0308[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.373[/C][C]0.3857[/C][C]0.509[/C][C]0.0356[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.4003[/C][C]0.4162[/C][C]0.5225[/C][C]0.0403[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.4037[/C][C]0.4354[/C][C]0.5538[/C][C]0.0434[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]0.4052[/C][C]0.4147[/C][C]0.5319[/C][C]0.04[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.4299[/C][C]0.4314[/C][C]0.5524[/C][C]0.0427[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.4058[/C][C]0.4244[/C][C]0.5427[/C][C]0.0416[/C][/ROW]
[ROW][C]Q12 excluded[/C][C]0.3848[/C][C]0.4001[/C][C]0.5233[/C][C]0.0378[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.3844[/C][C]0.4103[/C][C]0.5266[/C][C]0.0393[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.3917[/C][C]0.3963[/C][C]0.5145[/C][C]0.0372[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.4061[/C][C]0.4339[/C][C]0.5437[/C][C]0.0431[/C][/ROW]
[ROW][C]Q16 excluded[/C][C]0.3368[/C][C]0.3577[/C][C]0.4871[/C][C]0.0317[/C][/ROW]
[ROW][C]Q17 excluded[/C][C]0.3363[/C][C]0.3491[/C][C]0.4845[/C][C]0.0306[/C][/ROW]
[ROW][C]Q18 excluded[/C][C]0.3603[/C][C]0.3639[/C][C]0.4944[/C][C]0.0326[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=315766&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=315766&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	0.4031	0.4177	0.5428	0.0383
Q1 excluded	0.4066	0.4407	0.5511	0.0443
Q2 excluded	0.3677	0.3534	0.486	0.0311
Q3 excluded	0.4166	0.4208	0.5371	0.041
Q4 excluded	0.4412	0.4558	0.5607	0.047
Q5 excluded	0.3371	0.3506	0.4817	0.0308
Q6 excluded	0.373	0.3857	0.509	0.0356
Q7 excluded	0.4003	0.4162	0.5225	0.0403
Q8 excluded	0.4037	0.4354	0.5538	0.0434
Q9 excluded	0.4052	0.4147	0.5319	0.04
Q10 excluded	0.4299	0.4314	0.5524	0.0427
Q11 excluded	0.4058	0.4244	0.5427	0.0416
Q12 excluded	0.3848	0.4001	0.5233	0.0378
Q13 excluded	0.3844	0.4103	0.5266	0.0393
Q14 excluded	0.3917	0.3963	0.5145	0.0372
Q15 excluded	0.4061	0.4339	0.5437	0.0431
Q16 excluded	0.3368	0.3577	0.4871	0.0317
Q17 excluded	0.3363	0.3491	0.4845	0.0306
Q18 excluded	0.3603	0.3639	0.4944	0.0326

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')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code