the criteria. Systematic piloting and feedback may follow in order to refine the
wording. Groups of raters may discuss performances
in relation to the
definitions, and the definitions in relation to sample performances. This is the
traditional way proficiency scales have been developed (Wilds 1975; Ingram
1985; Liskin-Gasparro 1984; Lowe 1985, 1986).
Qualitative methods:
These methods all involve small workshops with
groups of informants and a
qualitative rather than statistical interpretation of the information obtained.
No 4.
Key concepts: formulation: Once a draft scale exists, a simple technique is to chop
up the scale and ask informants typical of the people
who will use the scale to
(a) put the definitions in what they think is the right order, (b) explain why
they think that, and then once the difference
between their order and the
intended order has been revealed, to (c) identify what key points were helping
them, or confusing them. A refinement
is to sometimes remove a level, giving
a secondary task to identify where the gap between two levels indicates that a
level is missing between them. The Eurocentres certification
scales were
developed in this way.
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