Objectivity is a property of the method, not of the individual scientist

The argument

Defenders of scientific objectivity usually begin by rejecting the standard their critics assume. The claim is not that researchers are free of preference, ambition or prior conviction; everyone accepts that they are not. The claim is that science is organised so that those features of the individual do not determine the result. Measurements are taken with instruments rather than impressions, procedures are written down so that someone else can repeat them, and the person running a trial is often prevented from knowing which condition a subject is in. Each of these arrangements exists because bias was expected, not because it was denied. On this account objectivity is achieved by distributing the checking rather than by purifying the checker. A finding is published in enough detail for a stranger to attempt it again, and the people most motivated to attempt it are those whose own work it threatens. Reviewers look for the error the author had reason to overlook; rival groups test the claim hoping it fails; a result that survives this treatment has been examined by people with opposing stakes rather than by its author alone. Proponents argue that this is why individual partiality is tolerable, since the system is built to convert competing partialities into scrutiny. The evidence offered for the arrangement working is that it corrects itself. Claims that flattered the people who made them have been abandoned when they could not be reproduced, and conclusions that nobody wanted have been accepted because the measurements kept coming out that way. Proponents hold that a practice which forces its participants to give up cherished positions under pressure of evidence is doing what objectivity requires, and that demanding neutral individuals as well misunderstands where the objectivity in science was ever supposed to live.

Premises

Counter-arguments

Critics reply that this relocates the problem without solving it. The method is not self-executing: people decide which replications are worth funding, which reviewers are credible and which anomalies count as failures rather than noise, and those decisions are made by a community that shares the assumptions in question. A rival with opposing stakes checks the result but not the framework both rivals accepted before starting. Critics add that the self-correction story is told selectively, since it names the errors eventually caught and cannot speak for assumptions never tested because nobody inside the field thought to question them. On that view the method improves reliability, which is worth having, but reliability among people who agree is not objectivity.

Rejecting the premises

[Rejecting P1] Conceding that researchers are partial while locating objectivity in procedure only moves the question, since the procedures are designed, applied and interpreted by the same partial people. [Rejecting P2] Rivals with opposing stakes test conclusions within a framework they share, so the assumptions both sides brought to the work are the ones least likely to be checked. [Rejecting P3] Self-correction is evidenced by the errors that were caught and says nothing about those still in place, so it cannot show that the method removes bias rather than only some of it. [Rejecting C] What follows is that scientific method makes findings more reliable than individual judgment, which is a weaker claim than objectivity as the position states it.