Hi everyone, I'm trying to program a task that randomly shows "medium far 8 points", "medium far 9 points", and "medium far 10 points". But my code would only show "medium far 1 points", "medium far 2 points", and "medium far 3 points" (i assume that those are index numbers) and I can't figure out why. 
Here are my codes and thank you for your help!

<values>
/mediumfarpoints=""
</values>

<text mediumfarpoints>
/items= ("8","9","10")
/select = replace
/ selectionrate = always
</text>


<text distance1>
/items = ("Medium Far <%values.mediumfarpoints%> points")
</text>


<trial distancechoice>
/ ontrialbegin = [values.mediumfarpoints=text.mediumfarpoints.nextvalue;]
/ validresponse= (57)
/ stimulusframes = [1=distance1]
</trial>

<block >
/ trials = [1-3=distancechoice]
</block>

The code should read

<values>
/mediumfarpoints=""
</values>

<text mediumfarpoints>
/items= ("8","9","10")
/select = replace
/ selectionrate = always
</text>

<text distance1>
/items = ("Medium Far <%values.mediumfarpoints%> points")
</text>

<trial distancechoice>
/ ontrialbegin = [values.mediumfarpoints=text.mediumfarpoints.item(text.mediumfarpoints.nextindex);]
/ validresponse= (57)
/ stimulusframes = [1=distance1]
</trial>

<block myblock>
/ trials = [1-3=distancechoice]
</block>

or, more conveniently, use a <list> instead of a <text> element:

<values>
/mediumfarpoints=""
</values>

<list mediumfarpoints>
/items= ("8","9","10")
/ replace = true
/ selectionrate = always
</list>

<text distance1>
/items = ("Medium Far <%values.mediumfarpoints%> points")
</text>

<trial distancechoice>
/ ontrialbegin = [values.mediumfarpoints=list.mediumfarpoints.nextvalue;]
/ validresponse= (57)
/ stimulusframes = [1=distance1]
</trial>

<block myblock>
/ trials = [1-3=distancechoice]
</block>