Gherardi, M. Exact sampling of self-avoiding paths via discrete Schramm-Loewner evolution.
Using diverse recruitment sites was intended to mitigate against reliance on convenience sampling of self-selected individuals, but details of non-responders are not available for comparison.
The main limitation of this study is concerned with how representative the sample of self selecting doctors interviewed can ever be in a specialist area.
The Experience Sampling Method (ESM) is an ecologically valid, time-sampling of self-reports developed to study the dynamic process of person environment interactions.
People have sent us samples of "self-seal" envelopes instead of one gummed surface, it has two, and you just press the two surfaces together and the thing is sealed.
If, as some have suggested, responses by self-reported non-citizens that they voted are the result of citizens accidentally claiming to be non-citizens, we should see almost no self-reported votes by consistent non-citizens, or that they vote at a lower level than the overall sample of self-reported non-citizens.
Figures 6 and 7 show the samples of self-similarity curves for some obscene and non-obscene video episodes, respectively.
For Lebanon, a separate sample of self-employed was available, which we used to compare self-employed individuals with formal and informal employees.
The central value of (theta ) is 1.428, notably higher than for the whole sample of self-employed; remaining regressors hardly differ from the previous ones.
Different from Web surveys based on samples of self-selection, this study started with a multistage sampling strategy and drew a stratified sample of 11 high schools representing different school ranks in Nanjing.
The key concern behind the use of these data is the sampling error that can occur due to the fact that respondents are not randomly selected from a representative sampling frame, but the target population rather forms a 'convenience sample' of self-selected individuals6.
