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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, 02 Oct 2023 04:55:39 +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/2023/Oct/02/t16962154316ossv2r0q72k6mo.htm/, Retrieved Mon, 27 Jul 2026 14:39:07 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=319953, Retrieved Mon, 27 Jul 2026 14:39:07 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

266

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

-       [Cronbach Alpha] [Reliability Test] [2023-10-02 02:55:39] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

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

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	0 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 time0 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319953&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]

0 seconds[/C][/ROW] [ROW]

R Server[/C]

Big Analytics Cloud Computing Center[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=319953&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319953&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	0 seconds
R Server	Big Analytics Cloud Computing Center

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All items	0.8484	0.8579	0.9065	0.3013
IPD1 excluded	0.8427	0.8518	0.8945	0.3066
IPD2 excluded	0.847	0.8581	0.9049	0.3176
IPD3 excluded	0.8354	0.8457	0.8939	0.2965
IPD4 excluded	0.8314	0.842	0.8974	0.2908
IPD5 excluded	0.8333	0.8446	0.8964	0.2948
CSF1 excluded	0.8407	0.8509	0.901	0.305
CSF2 excluded	0.8342	0.8427	0.8914	0.2918
CSF3 excluded	0.8294	0.8405	0.8942	0.2884
CSF4 excluded	0.8415	0.8455	0.8982	0.2963
CSF5 excluded	0.8337	0.8447	0.8936	0.295
CSF6 excluded	0.8351	0.8462	0.895	0.2974
CSF7 excluded	0.8456	0.8554	0.8968	0.3127
CSF8 excluded	0.8491	0.8602	0.8954	0.3213
CSF9 excluded	0.8394	0.8503	0.9002	0.3041

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All items & 0.8484 & 0.8579 & 0.9065 & 0.3013 \tabularnewline
IPD1 excluded & 0.8427 & 0.8518 & 0.8945 & 0.3066 \tabularnewline
IPD2 excluded & 0.847 & 0.8581 & 0.9049 & 0.3176 \tabularnewline
IPD3 excluded & 0.8354 & 0.8457 & 0.8939 & 0.2965 \tabularnewline
IPD4 excluded & 0.8314 & 0.842 & 0.8974 & 0.2908 \tabularnewline
IPD5 excluded & 0.8333 & 0.8446 & 0.8964 & 0.2948 \tabularnewline
CSF1 excluded & 0.8407 & 0.8509 & 0.901 & 0.305 \tabularnewline
CSF2 excluded & 0.8342 & 0.8427 & 0.8914 & 0.2918 \tabularnewline
CSF3 excluded & 0.8294 & 0.8405 & 0.8942 & 0.2884 \tabularnewline
CSF4 excluded & 0.8415 & 0.8455 & 0.8982 & 0.2963 \tabularnewline
CSF5 excluded & 0.8337 & 0.8447 & 0.8936 & 0.295 \tabularnewline
CSF6 excluded & 0.8351 & 0.8462 & 0.895 & 0.2974 \tabularnewline
CSF7 excluded & 0.8456 & 0.8554 & 0.8968 & 0.3127 \tabularnewline
CSF8 excluded & 0.8491 & 0.8602 & 0.8954 & 0.3213 \tabularnewline
CSF9 excluded & 0.8394 & 0.8503 & 0.9002 & 0.3041 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319953&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]0.8484[/C][C]0.8579[/C][C]0.9065[/C][C]0.3013[/C][/ROW]
[ROW][C]IPD1 excluded[/C][C]0.8427[/C][C]0.8518[/C][C]0.8945[/C][C]0.3066[/C][/ROW]
[ROW][C]IPD2 excluded[/C][C]0.847[/C][C]0.8581[/C][C]0.9049[/C][C]0.3176[/C][/ROW]
[ROW][C]IPD3 excluded[/C][C]0.8354[/C][C]0.8457[/C][C]0.8939[/C][C]0.2965[/C][/ROW]
[ROW][C]IPD4 excluded[/C][C]0.8314[/C][C]0.842[/C][C]0.8974[/C][C]0.2908[/C][/ROW]
[ROW][C]IPD5 excluded[/C][C]0.8333[/C][C]0.8446[/C][C]0.8964[/C][C]0.2948[/C][/ROW]
[ROW][C]CSF1 excluded[/C][C]0.8407[/C][C]0.8509[/C][C]0.901[/C][C]0.305[/C][/ROW]
[ROW][C]CSF2 excluded[/C][C]0.8342[/C][C]0.8427[/C][C]0.8914[/C][C]0.2918[/C][/ROW]
[ROW][C]CSF3 excluded[/C][C]0.8294[/C][C]0.8405[/C][C]0.8942[/C][C]0.2884[/C][/ROW]
[ROW][C]CSF4 excluded[/C][C]0.8415[/C][C]0.8455[/C][C]0.8982[/C][C]0.2963[/C][/ROW]
[ROW][C]CSF5 excluded[/C][C]0.8337[/C][C]0.8447[/C][C]0.8936[/C][C]0.295[/C][/ROW]
[ROW][C]CSF6 excluded[/C][C]0.8351[/C][C]0.8462[/C][C]0.895[/C][C]0.2974[/C][/ROW]
[ROW][C]CSF7 excluded[/C][C]0.8456[/C][C]0.8554[/C][C]0.8968[/C][C]0.3127[/C][/ROW]
[ROW][C]CSF8 excluded[/C][C]0.8491[/C][C]0.8602[/C][C]0.8954[/C][C]0.3213[/C][/ROW]
[ROW][C]CSF9 excluded[/C][C]0.8394[/C][C]0.8503[/C][C]0.9002[/C][C]0.3041[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=319953&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319953&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 items	0.8484	0.8579	0.9065	0.3013
IPD1 excluded	0.8427	0.8518	0.8945	0.3066
IPD2 excluded	0.847	0.8581	0.9049	0.3176
IPD3 excluded	0.8354	0.8457	0.8939	0.2965
IPD4 excluded	0.8314	0.842	0.8974	0.2908
IPD5 excluded	0.8333	0.8446	0.8964	0.2948
CSF1 excluded	0.8407	0.8509	0.901	0.305
CSF2 excluded	0.8342	0.8427	0.8914	0.2918
CSF3 excluded	0.8294	0.8405	0.8942	0.2884
CSF4 excluded	0.8415	0.8455	0.8982	0.2963
CSF5 excluded	0.8337	0.8447	0.8936	0.295
CSF6 excluded	0.8351	0.8462	0.895	0.2974
CSF7 excluded	0.8456	0.8554	0.8968	0.3127
CSF8 excluded	0.8491	0.8602	0.8954	0.3213
CSF9 excluded	0.8394	0.8503	0.9002	0.3041

Parameters (Session):

par1 = TRUE ;

Parameters (R input):

par1 = TRUE ;

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

par1 &lt;- 'TRUE'
library(psych)
par1b &lt;- T
if(par1=='FALSE') par1b &lt;- F
z &lt;- t(y)
(r &lt;- alpha(z,check.keys=par1b))
load(file='createtable')
a&lt;-table.start()
a&lt;-table.row.start(a)
a&lt;-table.element(a,'Cronbach Alpha and Related Statistics',5,TRUE)
a&lt;-table.row.end(a)
a&lt;-table.row.start(a)
a&lt;-table.element(a,'Items',1,TRUE)
a&lt;-table.element(a,'Cronbach Alpha',1,TRUE)
a&lt;-table.element(a,'Std. Alpha',1,TRUE)
a&lt;-table.element(a,'G6(smc)',1,TRUE)
a&lt;-table.element(a,'Average R',1,TRUE)
a&lt;-table.row.end(a)
a&lt;-table.row.start(a)
a&lt;-table.element(a,'All items',header=TRUE)
a&lt;-table.element(a,round(r$total['raw_alpha'],4))
a&lt;-table.element(a,round(r$total['std.alpha'],4))
a&lt;-table.element(a,round(r$total['G6(smc)'],4))
a&lt;-table.element(a,round(r$total['average_r'],4))
a&lt;-table.row.end(a)
n = length(z[1,])
for (i in 1:n) {
a&lt;-table.row.start(a)
a&lt;-table.element(a,paste(colnames(z)[i],' excluded',sep=''),header=TRUE)
a&lt;-table.element(a,round(r$alpha.drop[i,'raw_alpha'],4))
a&lt;-table.element(a,round(r$alpha.drop[i,'std.alpha'],4))
a&lt;-table.element(a,round(r$alpha.drop[i,'G6(smc)'],4))
a&lt;-table.element(a,round(r$alpha.drop[i,'average_r'],4))
a&lt;-table.row.end(a)
}
a&lt;-table.end(a)
table.save(a,file='mytable.tab')

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Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code