Question

Topic: Research/Metrics

Confused About Surveys

Posted by donalhealy78 on 10/7/2009 at 5:00 AM ET 25 Points
Hi Guys Im currently analysisng a survey and am little confused regarding one aspect of the survey. it relates to the 'base for the analysis' of a particular question.

For example a question was posed which asked 'how likely you would be to travel to the following destinations if they were available from our airport' - There were 3 categories:

Interested Not Interested
1) London 365 250
2) Edinburgh 150 245
3) Dublin 345 50

the figures quoted are the respondents who answered the question,note they could give their optinions on all three destinations, Im struggling though to work out what % of people are interested for example in travelling to London if it was available eg is my base for this question 395 which is the number of people who answered for Dublin or is the base 1405 which is the number of answers given across the 3 options....any help would be appreciated
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RESPONSES

  • Posted by koen.h.pauwels on 10/7/2009 at 8:02 AM Member
    I am no survey expert, but common marketing sense suggest that the base is all 1405 people who took your survey. If you asked them all three and many did not answer about a particular destination, it is likely they do not have a strong opinion.Therefore, the best way to represent your survey outcome is that eg for London:

    365/1405 of respondents are interested
    250/1405 of respondents are not interested
    (1405-365-250)/1405 of respondents had no opinion

    A pie chart would express this nicely, and you can compare across cities.
  • Posted by Chris Blackman on 10/7/2009 at 9:07 AM Member
    I think the answer is neither of your suggestions.

    One fact that seems to be omitted is the total number of respondents to the survey (not to that part of the question).

    I presume that people could say they are interested in tavelling to any or all of the destinations - am I right?

    If so, a person could be counted up to three times using the 1405 number. That's not helpful.

    So, assuming the total number of people surveyed was x, the percentage for London would be 365/x X 100/1

    Hope that helps.

    ChrisB
  • Posted by donalhealy78 on 10/7/2009 at 10:20 AM Author
    Thanks guys. The total number of people who were surveyed was 750...however not all of them answered so I dont have definitvie number of respondents for tthis question like I do for simple yes / no answers..plus some answered taht they were interested in London, Interested in Edinburgh but not interested in Dublin so Im struglling to work out what my percentage answer is for each destination
  • Posted on 10/7/2009 at 10:54 AM Accepted
    I think you need to percentage based off of the total that answered that question. So if a total of 500 people provided an answer for the for the London question, your percentage would be 365/500. In interpreting this, you would be saying "of the people who considered London at all, 73% were interested".

    Alternatively, you could also use the 750 as a base of total respondents, and say "48% would be interested in flying to London". You just need to know that using the 750 as a base will 'penalize' each question to a different extent, because it is not clear if those who did not answer are interested or disinterested. Using the base of respondents who answered each question, therefore, is probably the way to get the "cleanest" results and most directly comparable results.
  • Posted on 10/14/2009 at 5:44 AM Member
    great work! Congrat wit results.
    https://buy-custom-essay.org/aboutessayhelp.php
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