Phone screens, personality tests, and AI video interviews
why the pre-interview step is breaking

After the first real interview, the hiring manager says some version of: "They interviewed better than they work." Phone screens, personality tests, questionnaires, and AI video interviews filtered a lot of people. They did not measure whether those people use soft skills as they do the job.

That mismatch lives in an unnamed middle step: after the resume looks qualified, before the hiring manager meets anyone. Someone has to decide who is worth the manager's time. Most teams reach for the same tools, a phone screen, a personality test, an AI video interview, an unpaid take-home, each added to protect the manager's calendar. Extra rounds also make candidates ghost back.

Recruiters lose hours there. Good candidates drop out. Weak signals pass through. And no one can say clearly what was tested. Published research and public cases from Unilever, Amazon, and McDonald's name six problems hiding in that step.

A hiring funnel diagram shows apply, screen, interview, offer. In practice, a crowded step sits between "this resume looks qualified" and "the hiring manager will meet them." Recruiters call it the phone screen, the personality test, the video interview, or just "a quick chat."

Without a name, nobody agrees what to measure. Your job post lists the skills you care about, such as teamwork or ownership. This middle step rarely checks those exact skills. In our study of European software engineer job posts, employers mostly write actions, not adjectives, yet this step still rarely tests what the post describes. Candidates prepare for what the post says. Interviewers later judge something the post never mentioned.

Unilever shows how large this step can grow. Before it rebuilt hiring, the company sorted 250,000 applications by hand to fill 800 graduate roles, which took four to six months (HireVue, 2019). Its fix was to add several tools in a row: first online games, then AI video interviews, then human interviews. People moved through faster. With each tool added, it got harder to tell candidates exactly what was being judged, and why.

The phone screen is the oldest tool in this middle step, and it exists for a fair reason: a hiring manager's time is expensive, so someone has to decide who is worth a meeting. The catch is simple math. Take a mid-sized company that hires for about 60 roles a year and phone-screens roughly 30 candidates per role. That is 1,800 screens a year. At 25 minutes each, and about $45 for an hour of a recruiter's time, the phone screen alone adds up to a large bill that comes back every year.

And what do you get for it? Less than you would hope. Decades of research show that a casual, unscripted phone chat is good for breaking the ice but weak at predicting who will actually do the job well (Sackett et al., 2022). The recruiter hears a few rehearsed stories. The candidate answers "tell me about yourself" for the tenth time this month. Both spend real hours, and the result barely tells you who can do the work.

Scheduling eats the rest. In one recruiter survey, 67% said booking a single interview takes them 30 minutes to two hours, and 35% called scheduling the most time-consuming part of their job (Yello, via Interviewstream). At high volume, the phone screen becomes calendar admin long before it becomes real evaluation.

AI video interviews were built to fix scheduling. Tools like HireVue let a company review thousands of recorded answers without booking a single live call. Through the 2010s, more employers adopted them. Then candidates began refusing to take them.

Greenhouse's 2026 research found that 38% of candidates dropped out of a hiring process once an AI interview was required. 33% pointed to the same thing: recording answers to a camera, with an AI scoring them and no human watching. The company saves time. The candidate talks to a screen and gets a score they cannot see or question. That breaks trust, and people walk away.

Unilever is the most public example. It told The Guardian (2019) that AI video screening saved 100,000 hours of recruiter time and about $1 million worldwide in a single year. Vodafone, Intel, and Singapore Airlines used similar tools. The savings were real. So was the backlash: candidates and privacy groups objected to being scored in ways they could not see, and HireVue later dropped face-scanning from new interviews after a 2019 complaint.

The risk did not disappear. In March 2025, the ACLU filed a complaint alleging that an AI video interview at Intuit blocked a deaf employee from a promotion after her request for captions was denied. The case is still open, but it shows what happens when a tool grows faster than its fairness checks.

Personality tests arrived in hiring in the 1990s and 2000s with an appealing promise: answer some questions, and we will tell you who fits. SHL, Predictive Index, Hogan, and many others built large businesses on quick quizzes and tidy reports. Buyers still like them. The evidence is not as kind.

Researchers score how well a hiring method predicts real job performance on a scale from 0 (no better than a coin flip) to 1 (perfect prediction); higher is better. In the largest review of this research, generic personality tests score about 0.19, near the bottom. A structured interview scores about 0.42, and a realistic job simulation about 0.29 (Sackett et al., 2022). In plain terms, the personality quiz is one of the weakest predictors that many teams still lean on.

Habit has outrun the evidence. A 2026 UK survey found 56% of hiring teams still use personality tests, even though only 10% of candidates think they are fair or accurate (ThriveMap). McDonald's restaurants pilot a picture-based quiz called Traitify in their hiring app; a candidate finishes it in about 90 seconds (Bersin/Paradox). Fast and easy, yes. But 90 seconds of clicking pictures tells you very little about how someone will handle a real shift.

Padding a resume is old. Generative AI made it effortless and universal. By Indeed's 2025–2026 research, about seven in ten job seekers now use AI to write applications or prepare for interviews. Employers answered with more AI of their own: tools that read resumes, auto-reject, and rank applicants. Candidates automate applying; employers automate filtering; and the resume stops being something either side trusts.

That reaction makes sense. A polished resume only proves someone can produce a polished resume. It does not show whether they can set priorities under pressure, disagree with a manager politely, or explain a trade-off to a colleague, the very skills most job posts ask for. So the useful evidence has to come from something a candidate cannot simply copy, paste, or generate.

Amazon learned the danger of trusting automation too much. Reuters reported in 2018 that Amazon quietly scrapped an AI tool that ranked resumes, because it had taught itself to mark down resumes that mentioned "women's" (as in "women's chess club") and graduates of women's colleges. Engineers could not confidently make it fair, so the company shut it down. Automating the resume step can scale hidden bias as fast as it saves recruiter time.

Once you stop trusting the resume, you lean on tests instead. But tests have a weakness: if the questions stay the same for everyone, someone will eventually work out the answers. Personality quizzes reward saying what the employer wants to hear. Skills-test questions leak onto Glassdoor and Reddit. Practiced interview stories get coached, and now drafted by ChatGPT. Research backs this up: fixed-question judgment tests can be gamed (Lievens and Dunlop, 2024), and candidates already use AI during recorded video interviews (Canagasuriam et al., 2025).

The rule of thumb is simple: if the questions never change, candidates can prepare for them. The way out is to make the task different each time and tied to the real job, so there is no fixed answer to look up. When a scenario responds to what the candidate just said, and comes from your own role, there is nothing to memorise in advance. People are also more willing to finish these tasks, because they feel like the job rather than a quiz (IJSA, 2025).

Unilever shows the trap. At global scale, every candidate played the same games and answered the same set questions. Efficient, but it created one shared target for the whole world to practice against, and coaching sites, review threads, and AI tools all teach people how to pass it.

On its own, each tool has a reasonable sales pitch. Phone screens protect the manager's time. Personality tests are quick and tick a box. AI video interviews handle big volumes. Skills tests confirm technical ability. Stack them together and you get a middle step that feels busy but still sends the wrong people to the interview.

Five public employer cases — Unilever, Intuit, Amazon, McDonald's, and HireVue adopters like Vodafone — show the same loop: a tool that solved one problem quietly created a new one in trust, accuracy, or fairness.

The phone screen predates the science of structured interviews. Personality tests spread before meta-analyses added up their weak track record. AI video interviews took off when volume was the bottleneck. Generative AI upended the resume in about three years. None of these tools are permanent fixtures — each was a fix for the problem of its day.

You do not need six new tools. You need one honest look at that middle step.

1. Name the step. Write down everything that happens between "the resume looks good" and "the manager interviews them." For each part, note what it costs, how many candidates finish it, and what it actually tells you. If you cannot say what a step measures, the candidate cannot either.
2. Stop paying twice for the same weak result. A phone screen and a personality test often capture the same vague impression, once by voice and once by PDF. Questionnaires and take-homes test skills in isolation. The research says seeing how they use the skills as they do the job predicts performance better than either. See our phone screen vs self-paced screening guide for the cost and validity comparison.
3. Move the real test earlier, and score skills in the work. Soft skills for their own sake are meaningless. When they write, create, and hand off work from your role, there is no public list of questions to practice. You see how they use all 44 skills. That is what you wanted to know. Do not add a round. Substitute the questionnaire.