Quantitative Research Methods Practical 1 1 You are asked by Apple to evaluate the new iPhone particularly in comparison with three older mobile p by iht11609

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									              Quantitative Research Methods

                           Practical 1


1. You are asked by Apple to evaluate the new iPhone particularly in
   comparison with three older mobile phones with keypads (let’s call
   them the Nokia, Motorola and LG). You are asked to conduct two
   experiments
      a. one on the usability of the iPhone touchpad in comparison with
          the more traditional keypads, and
      b. one on the usability of the iPhone in different environmental
          conditions (indoors; outdoors in warm weather; outdoors in cold
          weather, so user would want to wear gloves).
      (this is the kind of situation in which you could do one study and
      test both independent variables, but assume you will do two
      separate studies)


For each study state
(i)    what is the independent variable?
(ii)   what would suitable dependent variables be?
(iii)  would you have a control condition, if so what would it be?
(iv)   would you use a between participants, within participants or
       matched participants design? Justify your decision.
(v)    How many participants would you need (using the 5 minimum per
       condition heuristic)?
(vi)   What would you need to counterbalance?
(vii) What threats to the integrity of the results can you think of?
(viii) Are you satisfied that the design will answer the questions to
       Apple’s satisfaction?


2. Take a problem in your own research area (or a research area of
   interest) and design an experiment.

(i)     What is the hypothesis you are testing?
(ii)    what is the independent variable?
(iii)   what is/are the dependent variable/s?
(iv)    would you have a control condition, if so what would it be?
(v)     would you use a between participants, within participants or
        matched participants design? Justify your decision.
(vi)    How many participants would you need (using the 5 minimum per
        condition heuristic)?
(vii)   What would you need to counterbalance?
(viii)   What threats to the integrity of the results can you think of?
(ix)     Are you satisfied that the design will provide a good test of the
         hypothesis?

								
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