For my dissertation, I am doing a study on owners of anxious dogs' perceptions of canine anxiety. The population I am studying is owners of anxious dogs, and the way I sampled it was through an online questionnaire posted on my Facebook, and in Facebook groups for canine anxiety, but in the posts I stated that the inclusion criteria was that the participant must have an anxious dog, is it convenience sampling or purposive homogenous sampling? Or possibly even consecutive sampling?

Thanks in advance