An easy way to dismiss a study is to criticize the research methodology. The burden is often on the researcher(s) to explain how their methodology effectively addresses their research question or their hypotheses.
Is there any burden on the person delivering the critique of methods to discuss what methodology might be better? Adopting this practice could serve multiple purposes. It could highlight what methods the critic prefers and for what reasons. It could help move research agendas forward as researchers consider different approaches. It also raises the bar for critique; it is easy to say a methodology does not work but it requires more effort to suggest what methodology is more effective.
Here are at least a few factors to consider when proposing other research methods in response to completed research:
-Researchers differ on what research methods they like to use and what research methods they feel should be used. Approaches can differ across individuals, subfields, and disciplines.
-Approaching a research question using multiple methods can be helpful for answering the question. Often, a single methodological approach cannot address all the complexity we wish to uncover.
-Researchers are constrained by time and money. There are ideal plans researchers want to pursue and then there is what is possible.
Pitching an alternative methodological approach in addition to questioning the methods employed could lead to more helpful outcomes.