hi every one:
my quesition is regarding to the problme of single-item measure versus mulriple-item. i am trying to find a justification for using single-item meausre instead of multiple-item measue. i know that multiple-item is preferable to single-item, however, can any one help to to find a reliable reason to use single-item measure? because my quaestionnaire was designed and my date has already been gathered. i have no choice than finding a way to justify it
thank you
Naizla
single-item measure
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nazila1366
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Diogenes
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Hi,
With just one indicator: LV = indicator.
In fact, we do not have a LV.
If you modeled the hypothesis in terms of LV, it will be very difficult to “defend” the use of single indicator, because:
- the assessment of reliability will be not possible
- the domain of the definition of the construct will be under-represented by single indicator (content validity issues).
Inverting everything…
If you have just a single indicator, how to think in a model (hypothesis)?
- Write the hypothesis in terms of the indicator (not in terms of the construct or LV).
- Conclude and comment the results in terms of the indicator, and not in terms of the LV (that has a broader definition than the indicator).
Best regards,
Bido
With just one indicator: LV = indicator.
In fact, we do not have a LV.
If you modeled the hypothesis in terms of LV, it will be very difficult to “defend” the use of single indicator, because:
- the assessment of reliability will be not possible
- the domain of the definition of the construct will be under-represented by single indicator (content validity issues).
Inverting everything…
If you have just a single indicator, how to think in a model (hypothesis)?
- Write the hypothesis in terms of the indicator (not in terms of the construct or LV).
- Conclude and comment the results in terms of the indicator, and not in terms of the LV (that has a broader definition than the indicator).
Best regards,
Bido