An ideographic measurement measures something in an individual without making a comparison to other people. For instance in an IQ test, my IQ score can be compared to other people. If I’m 110 and the person next to me is 140, we know who is higher in this variable. With an ideographic measurement, such as a Q-sort or repertory grip, no comparison is made. For instance, imagine there’s a list of words representing different areas of life; love, work, money, recreation, family – and the task is to place them in order of how much we agree with them, to see what importance we place on different things. We couldn’t say who was ‘highest’ – there’s nothing to be highest in.
