Why Are Interviews Important in the Hiring Process?

By Sparsh Goyal, Founder at The Cognitive. Published 2026-07-07 · Last updated 2026-10-05

• Interviews are important in hiring because they reveal judgment, communication, adaptability, intent, cultural fit and real-world capability that resumes cannot capture.
• Structured interviews had the highest validity for predicting job performance (r = .42) in a 2022 meta-analysis by Sackett and colleagues.
• AI interviews, such as the live two-way video interviews in The Cognitive, keep a fixed rubric per role at volume while people make the hiring decision.

A resume can only show what someone has done. An interview is where you discover how they think when there's no script to follow.

That's why interviews have stayed central to hiring for so long. They are not perfect, but they expose signals that credentials alone can't: judgment, communication, adaptability, and intent.

The context around hiring has changed far more than the interview itself. Candidate volumes are higher, roles are more specialized, and decisions need to be made faster.

Yet the evaluation process still depends largely on limited human time and subjective interpretation.

This guide covers:

• the purpose of the interview;
• the challenges of interviewing at scale;
• the shift from traditional interviews to AI interviews;
• how The Cognitive runs AI interviews, near the end.

The core purpose of the interview in hiring

From a hiring manager's perspective, why job interviews are important comes down to one thing: making the right call with confidence.

A resume tells you what a candidate has done. An interview tells you who they are.

The purpose of the interview is to evaluate candidates on dimensions no written application can capture. Hiring professionals use interviews to:

• verify that stated qualifications translate into real-world capability;
• assess soft skills: communication, adaptability, and teamwork;
• gauge cultural fit and alignment with company values;
• understand a candidate's motivation and long-term career intent;
• compare candidates on a consistent, fair basis.

Why interviews are important is also about protecting the business. A bad hire costs far more than the salary paid. It costs time, team morale, and momentum.

Structured selection interviewing reduces that risk by giving employers a direct, standardized window into each candidate before any offer is made.

How well do interviews predict job performance?

Structured interviews predict job performance better than any other common selection method, according to a 2022 meta-analysis by Paul Sackett, Charlene Zhang, Christopher Berry and Filip Lievens in the Journal of Applied Psychology.

As summarized by SIOP's The Industrial-Organizational Psychologist, structured interviews had the highest mean operational validity (r = .42). Cognitive ability tests came in at .31.

The word that matters is structured. A structured interview uses a set rubric, job-related questions and consistent scoring. An unstructured chat about the candidate's weekend does not earn the same result.

Challenges employers face during bulk hiring

The purpose of a job interview is clear. Executing it at scale is where most organizations struggle, and high-volume recruiting exposes cracks in even experienced HR teams.

The most common challenges include:

• Interviewer fatigue: back-to-back interviews lead to inconsistent evaluations and poor judgment calls.
• Scheduling chaos: coordinating availability between candidates and panels across time zones consumes enormous HR bandwidth.
• Bias and inconsistency: without structure, different interviewers assess candidates differently, which makes comparisons unreliable.
• Slow time-to-hire: manual screening and interview cycles stretch hiring timelines, and top candidates drop out.
• No scalability: traditional interviews cannot scale without a matching increase in HR headcount.

This is where the effectiveness of interviews starts to break down under pressure. The answer is not fewer interviews, because the importance of a job interview has not changed.

What has changed is the need for a smarter way to run them. For many teams, that means AI interviewing for the first round.

The shift from traditional interviews to AI interviews

The way interviews work has changed a lot in recent years. What used to be a live, in-person conversation is often now a structured digital step.

There are 2 main formats. In a one-way interview, candidates record video or voice answers on their own time and AI evaluates them later. In a live, two-way AI interview, the AI holds the conversation and follows up on each answer as it happens.

This shift is not about replacing interviewers. It is about fixing the inconsistency.

In traditional interviews, 2 candidates can be judged differently depending on timing, mood, or interviewer style. Well-built AI interviews reduce that variation by:

• scoring every candidate for a role against the same rubric;
• asking job-related questions tied to that rubric;
• producing structured, comparable evaluation data, with the transcript to check it against.

A few realities behind this shift:

• Structured interviews are more predictive of job performance than unstructured ones, as the 2022 meta-analysis above shows.
• Automating the first round frees recruiter hours that phone screens used to consume.
• Large applicant pools become manageable without the same growth in recruiter workload.

So, why are interviews still important here? Because they are becoming more meaningful.

AI handles the first round, so human interviewers spend their time on candidates who already meet a clear baseline. The result is a faster, more consistent and more focused hiring process that is better structured, not less human.

How AI interviews have benefited hiring companies

Teams that adopt AI interview platforms aim for improvements at several stages of the hiring funnel. Here is where the gains usually come from:

• Faster time-to-hire: AI can interview many candidates in parallel, which compresses weeks of scheduling into days.
• More consistent evaluation: a fixed rubric and criterion-level scoring make candidates easier to compare fairly. This supports fairer hiring but does not remove the need to monitor for adverse impact.
• Better candidate experience: candidates pick their own interview time, which respects their schedules and can reduce drop-off.
• Evidence-based decisions: hiring managers get scored reports with transcripts instead of loose impressions.
• Less recruiter time per hire: automating first-round interviews frees hours that phone screens used to take.

The Cognitive is one of these AI interview platforms, and it adds AI sourcing so the same tool can find candidates as well as interview them.

The Cognitive: how companies interview at scale

The Cognitive is an AI-powered recruiting platform built for modern hiring teams. It sources candidates first, then interviews them live with AI.

Sourcing works from a plain-English brief across ~900M public profiles. You can reveal verified emails and phone numbers, and email and SMS outreach sequences run on the Sourcing Pro plan.

The interview handles the first round of selection interviewing, so your team spends its interview hours on later rounds.

Key features include:

• Live AI video interviews: a live, two-way AI video interview of 10 or 20 minutes, in 9 languages. Candidates book their own slot without an account, and the invitation tells them the interview is run by AI.
• A rubric per role: hiring teams set the criteria the role demands. The rubric stays fixed for the role, and the questions adapt live to each answer.
• Scored reports: a 1 to 5 score per criterion, overall written feedback, a weighted score out of 100 with a suggested verdict, and the transcript and recording.
• Resume claim checks: the AI probes up to 5 resume claims and marks each verified, refuted or unclear, with evidence from the interview.
• Human decisions: nothing is rejected automatically, and integrity flags are logged, not scored. The report can be shared as a read-only link.
• ATS integration: 60+ ATS integrations. For candidates imported from your ATS, a note with the score, summary and report link is written back.

For companies managing high-volume hiring, The Cognitive brings the structure and consistency that let interviews scale.

It does not replace the human connection at the heart of great hiring. It makes sure human attention goes where it matters most: on the candidates who clearly meet the bar.

Conclusion

Why are interviews important? Because no hire should be made on paper alone.

Interviews remain the most direct, human and revealing step in the hiring process. They protect employers from costly mistakes and give candidates a real chance to show their value.

The challenge has never been the interview itself. It has been running interviews at scale with consistency.

AI interview platforms like The Cognitive address that problem, so organizations can keep the full purpose of interviewing without giving up speed or fairness.

AI Interview starts at $99/month and AI Sourcing at $49/month, on monthly plans you can cancel anytime.

Let The Cognitive handle the first round while you review the reports. Start free.

Keep interviews structured at any volume Live AI video interviews with a fixed rubric per role and a scored report for every candidate. Start free

Sources

• Patrick Gavan O'Shea and Adrienne Fox Luscombe, HumRRO, Is Cognitive Ability the Best Predictor of Job Performance?, The Industrial-Organizational Psychologist (SIOP), summarizing Sackett, Zhang, Berry and Lievens (2022), Journal of Applied Psychology. Read 4 October 2026.

All posts · thecognitive.io