Saturday’s post (Utter Rubbish) went straight to the top of my all-time-most-read. I’m not sure whether that means there a lot of people in agreement, or whether lots are thinking what an inveterate fool T.P. made of himself. Either way, here is a short clarification:
Andrew Sabisky commented that Lleras-Muney’s number is the result of large-scale research, and that it is possible using natural experiment (I like that) to obtain plausible figures. However, subsequent (peer?) review apparently contested the result. Thanks to Andrew for the link.
But my title did not principally refer to the research itself, even though its provenance may be questionable and I stand by my comments over why it cannot be applied to the individual. It is possible that this is not what Lleras-Muney intended. It is widely accepted that increasing educational opportunity can have significant aggregate benefits for populations. It is particularly noticeable in developing countries where general life expectancy is low, and where certain groups (notably women) gain access to education for the first time.
What I think is U.R. is the way that such data are misrepresented to support partisan(?) agendas, particularly in relation to specific classroom practice. I don’t know whether Dylan Wiliam was just being careless in his use of language, but to my eyes he is saying that one year in ‘school’ will add 1.7 years to one’s life. As a justification for formative assessment, I think he presumes too rather too much!
It exasperates me when discussion of classroom practice ignores the reality of teaching specific groups of young people. Extending their longevity is not normally foremost in my mind, even when embedding formative assessment!
While it is true that educating a population is achieved by educating many individual people, the process is oblique and it is not straightforward to make direct links between the specific process and the general effect. Likewise, I have long criticised the commodification of ‘achievement’ as something distinct from the process of actual learning. Neither is quantifiable in any absolute way, and such approaches fail to capture the real life-benefits that ‘being educated’ can bring, which are mostly not objectively experienced at all. I am not sure how one would go about quantifying ‘achievement’ in relation, for example, to a growing appreciation of Literature or competence in a foreign language, nor how this contributes to the effects that Wiliam suggests.
One might further argue that the marginal quantity of life is not as important as its quality, and even in economic terms, increased longevity is as likely to add to the cost burden on society as reduce it.
The promotion of this utilitarian, economised view of education by those with significant clout has diminished a more individual, cultural and humane appreciation of its effects. This is the outlook of those who know the cost of everything and the value of nothing, and it has done untold damage to the wider perception of education in Britain.
That is where the Utter Rubbish really comes in.