posted about 2 years ago

Hi,

I am doing a mixed method study (sequential exploratory study). The first part of the study was the qualitative element (interviews). The output from this phase was a number of themes, which I developed into a conceptual model. This model contains a number of independent variables and one dependent variable (the variables were based on the themes from the interviews).

This model was investigated in the quantitative (survey) part of the research. My sampling technique was non-probability. I am currently doing the analysis of my survey data. As my sampling technique was non-probability, am I right in assuming that I cannot do any inferential statistic, just descriptive statistics (frequencies, statistics, cross tabulations)? From what I have read, there are no statistical tests I can do either, as the sample is non-probability.

Am I correct in the above assumptions? The reason I am concerned about this is that my supervisor told me to do “a statistical test” on my data. When I asked him what test, he said “any test, if you do a survey, you have to some test...just put some test in”. As I am the one who has to defend my work, I want to be able to defend my choice that I do not have any stat test in as it is not suitable for my data test (i.e. my data set does not meet the assumption of a stat test that the sample is random).

Any help from someone out there could give me would be great, thank you!!

A.