I am working on a project that collects a lot of data through
questionnaires. many questions are scored on a 5 point scale from strongly
agree to strongly disagree, the mid point being 'uncertain' or 'don't
know'.Objections from medical and statistical collegues that 'don't know' is
not a midpoint, from a statistical point of view, are I feel,logical. I feel
that without this option, respondents may be forced into expressing an
opinion they do not hold, or may not answer. Apart from accepted problems
with this type of measurement anyway, can anyone clear up the conceptual
problem of giving a score to 'uncertain'.Oppenheim acknowledges that neutral
is not necessarily the midpoint, yet if it is to be included, how can one
score it?
Many thanks for any help here.
>From Catherine Kay
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