Check-boxes don't have a calculation event, so you need to use a field that does, like a text field. It can be hidden, of course, but in this case we can use the text field where you want to change the text color based on the result. So if the check-boxes in question are called "Sleep1", "Sleep2", "Waking1", "Waking2" and the final two fields are called "Cat2Score" (the check-box with the result, with values of "Choice1" and "Choice2") and the (read-only) text field next to the second check-box is called "Cat2ScoreText", you can use this code as the custom calculation script of the latter:
var fields = ["Sleep1", "Sleep2", "Waking1", "Waking2"];
var total = 0;
for (var i in fields) {
if (this.getField(fields[i]).valueAsString!="Off") total++;
}
if (total<2) {
this.getField("Cat2Score").value = "Choice1";
event.target.textColor = color.black;
} else {
this.getField("Cat2Score").value = "Choice2";
event.target.textColor = color.red;
}
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