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Navigating the Interview Trap: MIU Faculty Research Explores the Science of Hiring

At MIU City University Miami, our faculty members are active researchers working to shape the evolution of their fields. We are proud to highlight a recent publication by Dr. Hernán Morales (MIU) and Dr. Aída López (UNIR iTED) featured on the prestigious research publishing platform F1000Research. 

The study, The Interview Trap: A Systematic Review on Factors Affecting the Validity of Employment Interviews, offers a fascinating look into the mechanics of how employees get hired.

The science behind the interview trap

If you’ve ever felt nervous about a job interview, you aren’t alone. But have you ever wondered what’s happening on the other side of the desk?

By conducting a systematic review of peer-reviewed research published between 2015 and 2025, Morales and López explored why the interview process often fails to predict an employee’s long-term success. 

The interview trap refers to the hidden biases and structural flaws that compromise the fairness of the selection process.

The battle against bias

One of the most striking results of the study involves the speed of human judgment. The research confirms that it takes as little as a tenth of a second for an interviewer to infer traits from a candidate’s appearance. 

This triggers initial impression bias, leading to confirmation bias, where the interviewer spends the rest of the meeting unconsciously seeking information that supports their first gut feeling.

The study distinguishes between explicit and implicit biases. Even recruiters with the best intentions often harbor unconscious stereotypes that can contradict their professional values. 

Also, the authors identify selective memory as a major risk factor. Interviewers often struggle to recall past events accurately, leading to recall bias when it comes time to make a final decision. To combat this, the study suggests that self-awareness training and the use of recorded interviews may help interviewers carry out a more balanced and reliable assessment.

The technical dimension

The study also provides a deep dive into how the interview is conducted. Here are some of the key findings:

• Structured interviews: Asking the same questions in the same order using standardized rubrics drastically improves validity.
• Modality comparison: Whether an interview is face-to-face or digital affects how rapport is built. While online interviews are convenient, the research examines how they must be managed carefully to ensure they remain as reliable as traditional settings.
• The four-applicant rule: The study references cognitive load theory, suggesting that an interviewer’s ability to process information effectively begins to plateau after evaluating about four candidates in a row.

A roadmap to better hiring

Morales and López conclude the study with actionable strategies to improve the hiring process. These include job analysis to ensure questions are relevant, interviewer refresher training to reinforce bias-mitigation techniques, and post-interview calibration sessions, where multiple interviewers discuss their findings to reach a consensus.

Global leadership at MIU

By synthesizing a decade of research through the rigorous PRISMA framework, this study advances the global conversation on professional ethics and recruitment validity. We congratulate Dr. Morales on this achievement and invite our community to read the full study on F1000Research.