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Good luck! Multiple-Choice Questions (45 points) 1



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Research Methodology for IB mock exam
Good luck!

Multiple-Choice Questions (45 points)



1. In a survey about advertising and household appliances, you asked participants to indicate agreement with the following three items to measure ‘purchase intention’:
1. ‘I am interested in purchasing the advertised television set’
Completely disagree 1 2 3 4 5 Completely agree
2. ‘Buying the advertised television set would make me feel happy’
1 Not at all 2 Maybe 3 Probably 4 Very likely 5 Definitely
3. ‘I would prefer to buy a different television set’
Completely disagree 1 2 3 4 5 Completely agree
Assuming Cronbach’s alpha is sufficient, are you theoretically allowed to create a new sum variable ‘purchase intention’ with any of these items?

  1. Yes, you can sum items 1 and 3 if you recode item 3.

  2. Yes, you can sum all three items if you recode item 3

  3. No, you cannot sum any of these items, even after recoding.

  4. Yes, you can sum items 1 and 2


2. Which set of hypotheses for an independent samples t-test are correct?

  1. H0: B = 0, H1: B > 0

  2. H0: µ1 = µ2; H1: µ1 > µ2

  3. H0: B > 0, H1: B = 0

  4. H0: µ1 > µ2; H1: µ1 = µ2


3. Which of the following statements is/are true?

  1. A measurement scale of an interval data type has fixed intervals between scale points, while a scale of an ordinal data type does not.

  2. A measurement scale of an interval data type has a meaningful zero point, while a scale of an ordinal data type does not.



  1. Both statements are true

  2. I is true, II is not true

  3. I is not true, II is true

  4. Both statements are not true

4. What can you conclude based on the following output?


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