Recently got accepted for a poster presentation based on a pre-registered abstract. However, all the results are non-significant (after running the analysis) and I can't help but feel slightly disappointed. Has anyone faced a similar issue and presented non-significant results at the conference? :( How often does one see non-significant results at a conference? It sucks to think that this disappointment will be blown up to poster size for all to see.
Publication bias is a huge problem in academic publishing right now.
In summary, if a field uses null-hypothesis significance testing with some arbitrary threshold (say, p<0.05) for significance, and only significant results are published because the field is only interested in significant results (impacting publishing decisions both by authors choosing what to submit and venues choosing what to publish), many (and possibly most) published significant results are actually showing effects that are not real or exaggerated sizes of the actual effects.
A high-quality study is high-quality whether or not the result is significant. You should design studies where either a significant or non-significant result is interesting (one key aspect of this is designing studies to be large enough that non-significant results are interesting).
Think about what is interesting about your non-significant result, and know that it is honorable and methodologically far better to present such results rather than hide them in a cabinet.
If your method was promising but turned out not to work, explain both the promise and the failure in your poster.