Array displaying 'Yes'???

I built an array on my page that works almost perfectly for what I need it for. It loops through my query and finds the correct results, but it also displays 'Yes' each time it returns a 'true.' This displays above my table where I'm using it. Any clues? It may be something easy but I don't have any experience with arrays so I'm clueless.

<cfset apprarray = arraynew(1)>

<cfoutput query="GetAppr">
<cfset appvar = 'false'>
<cfset varto=arraylen(apprarray)>
<cfloop from="1" to="#varto#" index="i">
<cfif getappr.classificationid is apprarray[i]>
<cfset appvar = 'true'>
</cfif>
</cfloop>
<cfif appvar is 'false'> #arrayappend(apprarray,getappr.classificationid)#
</cfif>
</cfoutput>

It appears the yes is actually coming from the line where appvar is false:
<cfif appvar is 'false'> #arrayappend(apprarray,getappr.classificationid)#
</cfif>

Will output the return value of the arrayAppend function (which is true or YES).

replace your #arrayAppend... with a CFSET and that should do it. Just use a temporary variable or no variable, like below
<cfset arrayappend(apprarray,getappr.classificationid)>

That worked! Thanks so much, I appreciate it.