As I previously noted, ideological bias can influence research and most academics, especially in the social sciences and humanities, are on the political left. This leads to groupthink and reduces the amount of scrutiny certain research receives and the debate it inspires. And it can bias every step of the research process. It can influence the choice of research questions, the way scales or questionnaires are worded, the specific outcomes measured, the decision to publish or not publish results, the amount of criticism the research receives in the peer-review process, the topics of selected research symposia at conferences, what projects receive grant funding, and so on.
Viewpoint diversity helps because we rely on peers to challenge us, to debate our ideas and point out the biases and flaws in our research. In research that does not touch on social or political issues, we often see considerable debate, people offering alternative hypotheses or questioning particulars of the research design and statistical tests. This always improves the quality of the work and helps us get closer to the objective truth. But people seem to go a little or a lot easier on research that touches on sensitive social or political topics, or supports leftist ideology. I have seen this firsthand. I have been at talks where people present very poorly conducted research related to ideas that failed to replicate or were never well-supported to begin with and watched as hardly anyone in the audience offered even the slightest challenge. It is very strange to see well-trained scientists so blatantly ignore fundamental research flaws because they find the conclusion ideologically affirming. This is precisely why we need to make our methods more rigorous, fight for an academic culture that challenges groupthink and prioritizes the pursuit of truth over tribal loyalty, and encourage diversity of thought.
A lot of bias discussion center around whether it’s fair to conservatives or not. This is, ultimately, beside the point. Conservatives have done a lot to themselves to damage their standing. But even if they have, and even if we argue that they deserve to be frozen out, it doesn’t follow that it’s good for the institution that is doing the freezing.
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