FreeStatistics.org

Free Statistics

of Irreproducible Research!

Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationTue, 06 Dec 2016 14:00:56 +0100
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2016/Dec/06/t1481029827rd08jlbyip8j6xw.htm/, Retrieved Sat, 02 May 2026 16:13:45 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=297821, Retrieved Sat, 02 May 2026 16:13:45 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact361

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [Cronbach Alpha 1 ] [2016-12-06 13:00:56] [fc6d28d208bad0c833791fcb11cb4db1] [Current]
Feedback Forum

Post a new message

Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
4	2	4	3
5	3	3	4
4	4	5	4
3	4	3	3
4	4	5	4
3	4	4	4
3	4	4	3
3	4	5	4
4	5	4	4
4	5	5	4
4	4	2	4
4	4	5	3
4	4	4	3
3	3	5	4
4	4	5	4
3	4	5	4
3	4	5	4
NA	NA	5	NA
5	5	4	3
4	4	4	4
3	4	5	3
4	4	4	4
4	4	5	4
4	4	5	4
4	4	5	4
3	4	4	4
3	4	4	3
4	4	4	4
2	4	5	4
5	4	4	4
4	3	5	4
4	5	5	4
5	4	5	4
4	3	5	4
2	3	5	4
4	5	2	4
3	4	5	4
4	3	5	3
4	3	3	4
4	4	5	4
5	4	4	4
4	5	5	4
3	3	4	4
5	5	5	3
5	4	5	3
4	4	4	3
4	4	4	4
3	5	5	3
4	4	4	4
2	3	4	2
4	5	5	4
5	5	2	4
5	5	5	4
4	3	5	4
4	3	4	3
4	4	5	4
3	4	4	3
3	4	4	4
4	4	4	3
4	4	4	4
5	5	3	4
2	4	4	4
4	4	4	4
3	4	4	4
4	4	5	4
4	2	4	4
4	4	4	3
4	4	4	3
5	4	5	3
3	4	4	3
3	4	4	3
4	5	5	5
4	4	3	4
4	4	4	4
4	4	4	5
3	4	3	4
4	4	4	4
3	4	5	3
3	3	5	4
4	3	5	4
4	4	5	4
3	3	3	4
4	4	4	4
4	4	3	4
4	4	4	4
5	4	4	4
5	4	3	5
4	4	5	4
3	4	5	4
3	NA	4	4
4	2	3	3
4	4	5	4
4	4	5	4
4	4	4	4
4	5	4	4
3	4	4	3
4	4	5	4
5	4	3	4
5	4	5	5
4	5	4	4
3	4	5	4
5	3	4	4
4	4	5	4
5	4	4	4
3	4	4	3
5	4	4	5
4	4	5	3
4	4	3	3
4	4	5	4
4	4	5	4
3	4	5	4
4	4	4	4
4	4	4	3
3	3	4	3
4	4	4	3
3	4	5	4
4	4	5	4
5	4	5	1
5	4	5	4
4	4	4	4
4	4	5	3
3	4	4	3
4	4	4	4
4	4	4	4
4	5	3	4
3	4	4	4
4	4	4	3
4	4	4	4
3	4	3	3
4	4	4	3
3	2	4	2
4	4	4	3
5	4	4	3
2	4	4	3
3	3	4	4
4	4	4	3
5	5	4	4
NA	NA	2	NA
4	5	5	4
5	5	5	5
4	5	5	4
4	4	4	3
3	4	5	4
4	4	5	4
4	4	2	4
4	4	3	4
4	4	4	4
5	4	5	3
4	3	5	4
4	4	5	4
3	3	2	3
4	5	5	4
4	4	4	3
4	4	4	4
3	4	5	3
4	4	5	4
5	4	5	4
4	4	5	4
2	3	5	4
4	4	4	4
4	3	4	3
4	4	4	4
4	5	5	5
5	4	3	4
5	4	4	3
3	3	1	4
4	4	4	4
4	4	4	4
2	3	4	5

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R ServerBig 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=297821&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=297821&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=297821&T=0

As an alternative you can also use a QR Code:  
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 Outputview raw output of R engine
Computing time0 seconds
R ServerBig Analytics Cloud Computing Center






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.3360.36490.32180.1256
Q1 excluded0.27490.29510.2240.1225
Q2 excluded0.12790.1490.11110.0551
Q3 excluded0.42460.42780.34030.1995
Q4 excluded0.2680.30070.2510.1254

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.336 & 0.3649 & 0.3218 & 0.1256 \tabularnewline
Q1 excluded & 0.2749 & 0.2951 & 0.224 & 0.1225 \tabularnewline
Q2 excluded & 0.1279 & 0.149 & 0.1111 & 0.0551 \tabularnewline
Q3 excluded & 0.4246 & 0.4278 & 0.3403 & 0.1995 \tabularnewline
Q4 excluded & 0.268 & 0.3007 & 0.251 & 0.1254 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=297821&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]0.336[/C][C]0.3649[/C][C]0.3218[/C][C]0.1256[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.2749[/C][C]0.2951[/C][C]0.224[/C][C]0.1225[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.1279[/C][C]0.149[/C][C]0.1111[/C][C]0.0551[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.4246[/C][C]0.4278[/C][C]0.3403[/C][C]0.1995[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.268[/C][C]0.3007[/C][C]0.251[/C][C]0.1254[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=297821&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=297821&T=1

As an alternative you can also use a QR Code:  
QR Code


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

Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.3360.36490.32180.1256
Q1 excluded0.27490.29510.2240.1225
Q2 excluded0.12790.1490.11110.0551
Q3 excluded0.42460.42780.34030.1995
Q4 excluded0.2680.30070.2510.1254


Figures (Output of Computation)

Input Parameters & R Code

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')