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Author's title

Author

*The author of this computation has been verified*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Tue, 28 Nov 2017 19:28:34 +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/2017/Nov/28/t1511893798fkd2yodblfgdr59.htm/, Retrieved Sat, 18 May 2024 16:43:53 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=308264, Retrieved Sat, 18 May 2024 16:43:53 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

System Quality (SQ1-SQ9)

Estimated Impact

143

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

-       [Cronbach Alpha] [CronbachAlphaSQ] [2017-11-28 18:28:34] [e32c8f3a6c40fa6b5d041988204898ea] [Current]

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Dataseries X:

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Histogram

Boxplots

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

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=308264&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=308264&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=308264&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	0.7315	0.733	0.7795	0.2337
SQ1 excluded	0.6986	0.7023	0.7067	0.2278
SQ2 excluded	0.6777	0.6838	0.6884	0.2128
SQ3 excluded	0.7113	0.7127	0.7666	0.2367
SQ4 excluded	0.7033	0.7045	0.76	0.2296
SQ5 excluded	0.7477	0.7472	0.7916	0.2698
SQ7 excluded	0.7089	0.7082	0.75	0.2328
SQ6 excluded	0.7014	0.7029	0.7576	0.2283
SQ8 excluded	0.6916	0.6914	0.7345	0.2187
SQ9 excluded	0.7214	0.724	0.7693	0.247

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.7315 & 0.733 & 0.7795 & 0.2337 \tabularnewline
SQ1 excluded & 0.6986 & 0.7023 & 0.7067 & 0.2278 \tabularnewline
SQ2 excluded & 0.6777 & 0.6838 & 0.6884 & 0.2128 \tabularnewline
SQ3 excluded & 0.7113 & 0.7127 & 0.7666 & 0.2367 \tabularnewline
SQ4 excluded & 0.7033 & 0.7045 & 0.76 & 0.2296 \tabularnewline
SQ5 excluded & 0.7477 & 0.7472 & 0.7916 & 0.2698 \tabularnewline
SQ7 excluded & 0.7089 & 0.7082 & 0.75 & 0.2328 \tabularnewline
SQ6 excluded & 0.7014 & 0.7029 & 0.7576 & 0.2283 \tabularnewline
SQ8 excluded & 0.6916 & 0.6914 & 0.7345 & 0.2187 \tabularnewline
SQ9 excluded & 0.7214 & 0.724 & 0.7693 & 0.247 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=308264&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]0.7315[/C][C]0.733[/C][C]0.7795[/C][C]0.2337[/C][/ROW]
[ROW][C]SQ1 excluded[/C][C]0.6986[/C][C]0.7023[/C][C]0.7067[/C][C]0.2278[/C][/ROW]
[ROW][C]SQ2 excluded[/C][C]0.6777[/C][C]0.6838[/C][C]0.6884[/C][C]0.2128[/C][/ROW]
[ROW][C]SQ3 excluded[/C][C]0.7113[/C][C]0.7127[/C][C]0.7666[/C][C]0.2367[/C][/ROW]
[ROW][C]SQ4 excluded[/C][C]0.7033[/C][C]0.7045[/C][C]0.76[/C][C]0.2296[/C][/ROW]
[ROW][C]SQ5 excluded[/C][C]0.7477[/C][C]0.7472[/C][C]0.7916[/C][C]0.2698[/C][/ROW]
[ROW][C]SQ7 excluded[/C][C]0.7089[/C][C]0.7082[/C][C]0.75[/C][C]0.2328[/C][/ROW]
[ROW][C]SQ6 excluded[/C][C]0.7014[/C][C]0.7029[/C][C]0.7576[/C][C]0.2283[/C][/ROW]
[ROW][C]SQ8 excluded[/C][C]0.6916[/C][C]0.6914[/C][C]0.7345[/C][C]0.2187[/C][/ROW]
[ROW][C]SQ9 excluded[/C][C]0.7214[/C][C]0.724[/C][C]0.7693[/C][C]0.247[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=308264&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=308264&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	0.7315	0.733	0.7795	0.2337
SQ1 excluded	0.6986	0.7023	0.7067	0.2278
SQ2 excluded	0.6777	0.6838	0.6884	0.2128
SQ3 excluded	0.7113	0.7127	0.7666	0.2367
SQ4 excluded	0.7033	0.7045	0.76	0.2296
SQ5 excluded	0.7477	0.7472	0.7916	0.2698
SQ7 excluded	0.7089	0.7082	0.75	0.2328
SQ6 excluded	0.7014	0.7029	0.7576	0.2283
SQ8 excluded	0.6916	0.6914	0.7345	0.2187
SQ9 excluded	0.7214	0.724	0.7693	0.247

Parameters (Session):

par1 = grey ; par2 = no ;

Parameters (R input):

par1 = grey ;

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')

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Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code