Millisecond Forums

Hello, 

I am trying to make instructions so I am referencing from an IAT test. However, there is a value in the text and trials that I don't understand.
I don't understand the function of the "instruction Index" that is placed in the text and trials.

For context, I will insert below every place that this function appears :

<values>
/ completed = 0
/ sum1a = 0
/ sum2a = 0
/ sum1b = 0
/ sum2b = 0
/ n1a = 0
/ n2a = 0
/ n1b = 0
/ n2b = 0
/ ss1a = 0
/ ss2a = 0
/ ss1b = 0
/ ss2b = 0
/ magnitude = "unknown"
/ preferred = "unknown"
/ notpreferred = "unknown"
/ n_correct = 0
/progresswidth = 0
/instructionIndex = 0</values>


<text instructions>
/ items = instructions
/ position = (10%, 25%)
/ halign = left
/ valign = top
/ hjustify = left
/ vjustify = center
/ size = (80%, 50%)
/ select = values.instructionIndex
</text>


<trial instructions>
/ ontrialbegin = [
    values.progresswidth += 10;
    values.instructionIndex += 1;
]
/ stimulustimes = [1=instructions, spacebar, progressbar, progressbar_fill]
/ correctresponse = (" ")
/ errormessage = false
/ recorddata = false
/ showmousecursor = true
</trial>