R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> x <- array(list(6,6,6,6,5,5,7,4,6,6,6,6,7,5,7,7,5,6,5,6,7,6,6,6,7,7,6,7,6,6,6,6,5,5,6,4,7,7,7,7,7,7,6,6,6,5,5,6,7,7,7,7,6,6,6,6,5,5,7,7,6,6,6,6,6,7,6,6,5,5,7,5,6,7,6,6,7,7,7,7,6,6,6,6,4,4,5,4,7,7,7,7,7,6,7,7,6,6,5,5,7,7,7,7),dim=c(4,26),dimnames=list(c('Q1/2','Q3/4','Q5/6','Q7/8'),1:26))
>  y <- array(NA,dim=c(4,26),dimnames=list(c('Q1/2','Q3/4','Q5/6','Q7/8'),1:26))
>  for (i in 1:dim(x)[1])
+  {
+  	for (j in 1:dim(x)[2])
+  	{
+  		y[i,j] <- as.numeric(x[i,j])
+  	}
+  }
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Dr. Ian E. Holliday
> #To cite this work: Ian E. Holliday, 2009, YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: 
> #Technical description: 
> library(psych)
> z <- t(y)
> (r <- alpha(z))

Reliability analysis   
Call: alpha(x = z)

  raw_alpha std.alpha G6(smc) average_r mean  sd
      0.83      0.82    0.82      0.54  6.1 0.7

 Reliability if an item is dropped:
     raw_alpha std.alpha G6(smc) average_r
Q1/2      0.71      0.70    0.66      0.44
Q3/4      0.79      0.78    0.75      0.55
Q5/6      0.88      0.88    0.84      0.71
Q7/8      0.73      0.72    0.71      0.46

 Item statistics 
      n    r r.cor r.drop mean   sd
Q1/2 26 0.90  0.90   0.82  6.1 0.86
Q3/4 26 0.80  0.74   0.66  6.0 0.87
Q5/6 26 0.65  0.46   0.42  6.2 0.71
Q7/8 26 0.88  0.84   0.77  6.0 0.96

Non missing response frequency for each item
        4    5    6    7 miss
Q1/2 0.04 0.19 0.38 0.38    0
Q3/4 0.04 0.23 0.38 0.35    0
Q5/6 0.00 0.15 0.46 0.38    0
Q7/8 0.12 0.08 0.46 0.35    0
> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/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="/var/wessaorg/rcomp/tmp/1c1u31333264700.tab") 
> 
> 
> 
> proc.time()
   user  system elapsed 
  0.274   0.037   0.365