Repository of Reproducible Computations

Free Statistics

of Irreproducible Research!

Author's title

Author

*Unverified author*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Tue, 13 Sep 2022 11:57:10 +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/2022/Sep/13/t1663063155cqydmhfxxa0x3gj.htm/, Retrieved Tue, 26 May 2026 11:04:51 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=319735, Retrieved Tue, 26 May 2026 11:04:51 +0000

QR Codes:

Paste this QR Code to cite your computation.

Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

334

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

-       [Cronbach Alpha] [] [2022-09-13 09:57:10] [d41d8cd98f00b204e9800998ecf8427e] [Current]

Feedback Forum

Post a new message

Dataseries X:

Download CSV

Histogram

Boxplots

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

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=319735&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=319735&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319735&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	-0.0652	-0.0618	1	-0.0027
Q1 excluded	0.0081	0.0103	1	5e-04
Q2 excluded	0.1568	0.1653	1	0.0093
Q3 excluded	-0.0824	-0.0687	1	-0.0031
Q4 excluded	-0.0331	-0.0279	1	-0.0013
Q5 excluded	-0.0335	-0.0602	1	-0.0027
Q6 excluded	-0.0842	-0.055	1	-0.0025
Q7 excluded	-0.0163	-0.0195	1	-9e-04
Q8 excluded	-0.1573	-0.1481	1	-0.0062
Q9 excluded	-0.0824	-0.0717	1	-0.0032
Q10 excluded	-0.0967	-0.1076	1	-0.0046
Q11 excluded	0.0507	0.0467	1	0.0023
Q12 excluded	-0.1278	-0.1308	1	-0.0055
Q13 excluded	-0.2119	-0.2298	1	-0.009
Q14 excluded	-0.3394	-0.3489	1	-0.0125
Q15 excluded	-0.1324	-0.1067	1	-0.0046
Q16 excluded	-0.1892	-0.2002	1	-0.008
Q17 excluded	0.0418	0.0567	1	0.0029
Q18 excluded	-0.0162	0.0019	1	1e-04
Q19 excluded	-0.0967	-0.1134	1	-0.0049
Q20 excluded	-0.1619	-0.1647	1	-0.0068
Q21 excluded	0.02	0.0232	1	0.0011
Q22 excluded	0.008	0.0231	1	0.0011

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & -0.0652 & -0.0618 & 1 & -0.0027 \tabularnewline
Q1 excluded & 0.0081 & 0.0103 & 1 & 5e-04 \tabularnewline
Q2 excluded & 0.1568 & 0.1653 & 1 & 0.0093 \tabularnewline
Q3 excluded & -0.0824 & -0.0687 & 1 & -0.0031 \tabularnewline
Q4 excluded & -0.0331 & -0.0279 & 1 & -0.0013 \tabularnewline
Q5 excluded & -0.0335 & -0.0602 & 1 & -0.0027 \tabularnewline
Q6 excluded & -0.0842 & -0.055 & 1 & -0.0025 \tabularnewline
Q7 excluded & -0.0163 & -0.0195 & 1 & -9e-04 \tabularnewline
Q8 excluded & -0.1573 & -0.1481 & 1 & -0.0062 \tabularnewline
Q9 excluded & -0.0824 & -0.0717 & 1 & -0.0032 \tabularnewline
Q10 excluded & -0.0967 & -0.1076 & 1 & -0.0046 \tabularnewline
Q11 excluded & 0.0507 & 0.0467 & 1 & 0.0023 \tabularnewline
Q12 excluded & -0.1278 & -0.1308 & 1 & -0.0055 \tabularnewline
Q13 excluded & -0.2119 & -0.2298 & 1 & -0.009 \tabularnewline
Q14 excluded & -0.3394 & -0.3489 & 1 & -0.0125 \tabularnewline
Q15 excluded & -0.1324 & -0.1067 & 1 & -0.0046 \tabularnewline
Q16 excluded & -0.1892 & -0.2002 & 1 & -0.008 \tabularnewline
Q17 excluded & 0.0418 & 0.0567 & 1 & 0.0029 \tabularnewline
Q18 excluded & -0.0162 & 0.0019 & 1 & 1e-04 \tabularnewline
Q19 excluded & -0.0967 & -0.1134 & 1 & -0.0049 \tabularnewline
Q20 excluded & -0.1619 & -0.1647 & 1 & -0.0068 \tabularnewline
Q21 excluded & 0.02 & 0.0232 & 1 & 0.0011 \tabularnewline
Q22 excluded & 0.008 & 0.0231 & 1 & 0.0011 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319735&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]-0.0652[/C][C]-0.0618[/C][C]1[/C][C]-0.0027[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.0081[/C][C]0.0103[/C][C]1[/C][C]5e-04[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.1568[/C][C]0.1653[/C][C]1[/C][C]0.0093[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]-0.0824[/C][C]-0.0687[/C][C]1[/C][C]-0.0031[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]-0.0331[/C][C]-0.0279[/C][C]1[/C][C]-0.0013[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]-0.0335[/C][C]-0.0602[/C][C]1[/C][C]-0.0027[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]-0.0842[/C][C]-0.055[/C][C]1[/C][C]-0.0025[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]-0.0163[/C][C]-0.0195[/C][C]1[/C][C]-9e-04[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]-0.1573[/C][C]-0.1481[/C][C]1[/C][C]-0.0062[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]-0.0824[/C][C]-0.0717[/C][C]1[/C][C]-0.0032[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]-0.0967[/C][C]-0.1076[/C][C]1[/C][C]-0.0046[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.0507[/C][C]0.0467[/C][C]1[/C][C]0.0023[/C][/ROW]
[ROW][C]Q12 excluded[/C][C]-0.1278[/C][C]-0.1308[/C][C]1[/C][C]-0.0055[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]-0.2119[/C][C]-0.2298[/C][C]1[/C][C]-0.009[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]-0.3394[/C][C]-0.3489[/C][C]1[/C][C]-0.0125[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]-0.1324[/C][C]-0.1067[/C][C]1[/C][C]-0.0046[/C][/ROW]
[ROW][C]Q16 excluded[/C][C]-0.1892[/C][C]-0.2002[/C][C]1[/C][C]-0.008[/C][/ROW]
[ROW][C]Q17 excluded[/C][C]0.0418[/C][C]0.0567[/C][C]1[/C][C]0.0029[/C][/ROW]
[ROW][C]Q18 excluded[/C][C]-0.0162[/C][C]0.0019[/C][C]1[/C][C]1e-04[/C][/ROW]
[ROW][C]Q19 excluded[/C][C]-0.0967[/C][C]-0.1134[/C][C]1[/C][C]-0.0049[/C][/ROW]
[ROW][C]Q20 excluded[/C][C]-0.1619[/C][C]-0.1647[/C][C]1[/C][C]-0.0068[/C][/ROW]
[ROW][C]Q21 excluded[/C][C]0.02[/C][C]0.0232[/C][C]1[/C][C]0.0011[/C][/ROW]
[ROW][C]Q22 excluded[/C][C]0.008[/C][C]0.0231[/C][C]1[/C][C]0.0011[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=319735&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319735&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	-0.0652	-0.0618	1	-0.0027
Q1 excluded	0.0081	0.0103	1	5e-04
Q2 excluded	0.1568	0.1653	1	0.0093
Q3 excluded	-0.0824	-0.0687	1	-0.0031
Q4 excluded	-0.0331	-0.0279	1	-0.0013
Q5 excluded	-0.0335	-0.0602	1	-0.0027
Q6 excluded	-0.0842	-0.055	1	-0.0025
Q7 excluded	-0.0163	-0.0195	1	-9e-04
Q8 excluded	-0.1573	-0.1481	1	-0.0062
Q9 excluded	-0.0824	-0.0717	1	-0.0032
Q10 excluded	-0.0967	-0.1076	1	-0.0046
Q11 excluded	0.0507	0.0467	1	0.0023
Q12 excluded	-0.1278	-0.1308	1	-0.0055
Q13 excluded	-0.2119	-0.2298	1	-0.009
Q14 excluded	-0.3394	-0.3489	1	-0.0125
Q15 excluded	-0.1324	-0.1067	1	-0.0046
Q16 excluded	-0.1892	-0.2002	1	-0.008
Q17 excluded	0.0418	0.0567	1	0.0029
Q18 excluded	-0.0162	0.0019	1	1e-04
Q19 excluded	-0.0967	-0.1134	1	-0.0049
Q20 excluded	-0.1619	-0.1647	1	-0.0068
Q21 excluded	0.02	0.0232	1	0.0011
Q22 excluded	0.008	0.0231	1	0.0011

Parameters (Session):

par1 = FALSE ;

Parameters (R input):

par1 = FALSE ;

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')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code