Some screening setups score or reject resumes by tenure. The rule might compute average time per employer, count the jobs held in the last five years, or flag any stint under a year. The logic is easy to state: a person who changed jobs often will leave soon, so avoid the expense. The research is more mixed than that logic, and it varies by occupation.

The 2025 Field Experiment: Preferences Differ by Role

Matissa Hollister, Nicole Denier, and Xavier St-Denis published a field experiment in Sociological Science (volume 12) on April 28, 2025. The team sent resumes that differed in past job mobility to real postings in technology and non-technology occupations. Their summary finding: "We found significant variation in employer mobility preferences."

The article reports that employers hiring for human resources, financial reporting, marketing, and information technology roles penalized applicants with high mobility. For software testers the pattern reversed: very stable work histories were penalized. The authors also report that high-technology employers did not broadly embrace mobility.

In a McGill University interview published February 18, 2026, Hollister described the software tester result: "We found that when hiring a software tester position, employers were much more tolerant of job hoppers" in both tech and non-tech industries. The contrast with roles such as human resources, marketing, and finance is the useful part for an employer. One tenure threshold applied across every requisition ignores what the study found: preferences depend on the work. It is also a caution against copying a rule from another team or another industry.

An Older Callback Study

The Chicago Booth Review reported on December 1, 2015, on a working paper titled "Job History, Work Attitude, and Employability," by Alain Cohn, Michel André Maréchal, Frédéric Schneider, and Roberto Weber. The review summarizes a field experiment in Switzerland in which resumes with fewer job changes received a callback rate 40 to 50 percent higher than resumes with more changes.

Treat this one with care. It is a working paper reported in 2015, it used fictitious resumes, it was run in Switzerland, and the outcome was callbacks. It shows that some employers preferred fewer changes. It does not show that frequent movers perform worse or leave sooner once hired.

What Federal Tenure Data Adds

The U.S. Bureau of Labor Statistics released Employee Tenure in 2026 on September 24, 2026. The release reports that median tenure with a current employer "was 4.1 years in January 2026, up from 3.9 years in January 2024." The release also reports that median tenure for "workers ages 55 to 64 (9.6 years) was more than three times that of workers ages 25 to 34 (3.0 years)."

Two points follow for anyone who sets a tenure threshold.

The benchmark is a median, not a standard. Half of workers in the survey had tenure below the median. A screen that treats ordinary job changes as warning signs is working against how careers commonly run. For workers ages 25 to 34, a median of 3.0 years means a three-year stay is typical for that age group, not an outlier.

Tenure tracks age. Younger workers have had less time to accumulate tenure at any one employer. A rule built on years per employer can therefore reach younger applicants more often, and a rule built on very long tenure can reach them differently from older ones. Whether a tenure rule creates age-related exposure is a question for employment counsel, and the audit steps in our filter audit checklist show how to look at pass rates by group before asking.

Why Short Stints Are Not One Thing

A short stint on a resume can reflect contract or project work, an employer closure, a layoff, a relocation, a spouse's move, or a role that did not match its description. None of these is visible to a rule that counts months. The sources above measure how employers responded to resumes. They do not establish that any of these backgrounds predicts poor performance, and a hiring team should not assume it.

Early turnover is a real cost, and it deserves a real diagnosis. Our post on the 90-day quit treats early turnover as a screening signal tied to how the role was described and screened.

Questions That Replace the Count

A count of months cannot tell a reviewer why someone moved. A few direct questions can, and each is tied to the work.

The answers give a hiring manager something to weigh besides a number. They also give a reviewer a defensible basis for a decision, which a tenure score does not supply.

A Tenure Filter Review

Find every tenure rule. Look for average-tenure scores, job-count limits, and short-stint flags in the ATS configuration and in recruiter search templates.

Match the rule to the role. The 2025 experiment found different preferences for different occupations, so one threshold for all roles needs a reason for each.

Replace automatic rejection with a flag. Let the pattern prompt a question for a reviewer instead of removing the resume.

Ask the direct question. "What led to each move?" resolves most patterns in one answer, and it separates a layoff or a contract end from a pattern of leaving.

Check pass rates. Compare how many applicants pass the tenure step by age group and other categories counsel advises you to review. See the Hidden Workers overview for the wider screening context.

How TrueScan HR Helps

TrueScan HR scores a resume against the job description and shows the matched and missing skills, which puts the focus on what a candidate can do for the role instead of how long each stint lasted. A narrative assessment explains each score in plain language, so a reviewer can see the substance behind a work history before weighing the pattern. Veteran Mode translates military codes, duties, and clearances into civilian skills, which helps when frequent reassignments make a service record look like job changes. The reviewer makes the decision.

Sources: