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Answer:
Usually, Likert-type scales use statements ("Please rate the extent to which you agree/disagree with the following:") and use 5 or 7-point response scales (most commonly). The response scales use anchors such as 1 = Strongly Disagree, 2 = Disagree, 3 = Neutral, 4 = Agree, 5 = Strongly Agree, etc.
The items should be phrased in a way that only poses one characteristic per item so that it is clear what the person is responding to. For example, "I think politicians are honest and helpful" is not a good item because you are asking about two separate issues (honesty and helpfulness). Also, try to avoid using the word "not" or other negatives directly in these items as it can become confusing about what it means to disagree with a negative.
Likert-type scales can be scored in a variety of ways. Typically, you would score each item so that higher scores always indicate "more" of some characteristic and then take the mean (average) of all of the items. Remember, the numbers will not have any inherent meaning (e.g., if you are measuring attitudes about politicians, scoring a 3.4 doesn't REALLY mean anything except that, on average, that individual was slightly favorable in his/her attitudes and can then be compared to the distribution of the remaining responses).
Finally, you always want to check the reliability of Likert-type scales using Cronbach's Alpha (internal consistency). In general, you want values of .7 and up (the ceiling is 1.0) for good internal consistency. Mathematically, internal consistency is the average of all possible split-half correlations. Conceptually, it measures how welly the items function together (e.g., do people respond consistently with their standing on the construct of interest).
You might want to check out one of the Sage Publications green books on surveys called "Survey Questions" by Converse and Presser. It has a lot of good info on building different types of surveys.
Hope that helps!
Answer:
a)3
b)5
c)2
Step-by-step explanation:
Hope it helps..