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Why I still don't prefer parsimonious solutions

posted Sep 6, 2017, 5:46 AM by Eva Thomann
Last week, Dimiter Toshkov published a blog post about rejecting QCA papers that do not use parsimonious solutions, in reaction to a statement by the COMPASSS Network of whose Steering Committee I am a member. He kindly invited me to reply:

"Thank you very much, Dimiter, for issuing this blog debate and inviting me to reply. In your blog post, you outline why, absent counterevidence, you find it justified to reject applied Qualitative Comparative Analysis (QCA) paper submission that do not use the parsimonious solution. I think I agree with some but not all of your points. Let me start by clarifying a few things.

Point of clarification 1: COMPASSS statement is about bad reviewer practice

It´s good to see that we all seem to agree that “no single criterion in isolation should be used to reject manuscripts during anonymous peer review”. The reviewer practice addressed in the COMPASSS statement is a bad practice. Highlighting this bad reviewer practice is the sole purpose of this statement. Conversely, the COMPASSS statement does not take sides when it comes to preferring specific solution types over others. The statement also does not imply anything about the frequency of this reviewer practice – this part of your post is pure speculation.  Personally I have heard people complaining about getting papers rejected for promoting or using conservative (QCA-CS), intermediate (QCA-IS) and parsimonious solutions (QCA-PS) with about the same frequency. But it is of course impossible for COMPASSS to get a representative picture of this phenomenon.

The term “empirically valid” refers to the, to my best knowledge entirely undisputed fact that all solution types are (at least) based on the information contained in the empirical data. The question that´s disputed is how we can or should go “beyond the facts” in causally valid ways when deriving QCA solutions.

Having said this, I will take off my “hat” as a member of the COMPASSS steering committee and contribute a few points to this debate. These points represent my own personal view and not that of COMPASSS or any of its bodies. I write as someone who uses QCA sometimes in her research and teaches it, too. Since I am not a methodologist, I won´t talk about fundamental issues of ontology and causality. I hope others will jump in on that.

Point of clarification 2: There is no point in personalizing this debate

In your comment you frequently refer to “the COMPASSS people”. But I find that pointless: COMPASSS hosts a broad variety of methodologists, users, practitioners, developers and teachers with different viewpoints and of different “colours and shapes”, some persons closer to “case-based” research, other closer to statistical/analytical research. Amongst others, Michael Baumgartner whom you mention is himself a members of the advisory board and he has had methodological debates with his co-authors as well.  Just because we can procedurally agree on a bad reviewer practice, it neither means we substantively agree on everything, nor does it imply that we disagree. History has amply shown how unproductive it can be for scientific progress when debates like these become personalized. Thus, if I could make a wish to you and everyone else engaging in this debate, it would be to talk about arguments rather than specific people. In what follows I will therefore refer to different approaches instead unless when referring to specific scholarly publications.

Point of clarification 3: There is more than one perspective on the validity of different solutions

As to your earlier point which you essentially repeat here, that “but if two solutions produce different causal recipes,  e.g. (1) AB-> E and (2) ABC-> E it cannot be that both (1) and (2) are valid”, my answer is: it depends on what you mean with “valid”.


Read my full reply here