H'm. It is very transatlantic, not to say American, in its assumptions. Also as you point out, very tied to, at most, the economic circumstances and material culture prevailing in the last two or three decades.

Of course, since it has apparently been developed as a teaching tool for use with US college students, that is not surprising. I am sure it makes a very good warm-up exercise. As an instrument for assessing class and privilege in 1950s and 60s Britain, it is fairly irrelevant.

I am very interested in the interactions between intellectual, class and economic privilege: this really doesn't shed much, if any, light on how these operate.