I Have Spent 15  Years Using Psychometric Assessments. And I Think Many Organisations Are Using Them Completely Wrong.

Have you ever had a candidate who “failed their psych test”?

Let me tell you about a candidate at an organisation I worked at, who was rejected at the psychometric stage of a hiring process.

They had made it through two rounds of interviews. The hiring manager liked them. The team liked them. By all accounts, they were the right person for the role.

Then the assessment came back.

Something in the report gave the hiring team the jitters. A single trait that did not quite fit the picture they had in their heads. Nobody rang the candidate. Nobody invited them back for a conversation.

The candidate simply did not progress.

No context. No conversation. No chance to respond to something they did not even know was being held against them.

That is not how a psychometric assessment is supposed to work.

And yet I have seen versions of that situation play out in organisations of every size, across every industry, more times than I have had hot dinners!

Here is the pattern I keep seeing.

An organisation decides to introduce assessments into their hiring process. Almost immediately, it becomes a tick-box exercise at the end of a process that is already effectively decided.

The report lands in someone’s inbox. It confirms what they already thought, in which case it gets filed away. Or it raises a flag, in which case it becomes a fail.

“They failed their psych test” is what is usually said.

But you cannot fail a psychometric assessment. Because you cannot fail who you are.

Either way, the report is treated as a verdict, not a starting point for a conversation.

And here is something worth knowing. Best practice guidelines are clear that a psychometric result should never make up more than 30% of your hiring decision. The other 70% is still yours to make.

Treating it as a verdict is precisely where the value disappears.

The other mistake I see constantly is organisations applying the same generic profile to every role. The same dimensions measured for the customer service coordinator and the national sales manager. The same expectations for the graduate and the CFO.

A hammer being used as a scalpel.

What works best is starting with the role. Defining precisely what success looks like in that specific position, in that specific team, in that specific business. Build a benchmark that reflects those requirements. Then use the assessment to measure a candidate against that benchmark, not against a generic ideal that may have nothing to do with what the role demands.

The right moment to use an assessment is before the final interview, not after. Use it to inform the conversation, not to replace it.

Then comes the interview . An exploration of what the data shows and what it means for this person in this role. That conversation protects the candidate. It protects the organisation. And it often surfaces insight that changes the hiring decision for the better.

And it does not stop at hiring.

Companies that integrate psychometric data into their onboarding experience a 25% -30% reduction in first-year staff turnover. When a new hire’s development plan is shaped around their natural behavioural traits they feel understood rather than forced into a rigid mould from day one. Think of the assessment as a user manual for your new team member.

Used properly, a psychometric assessment does not replace human judgement.

It makes human judgement significantly better.

The candidate who was rejected without a conversation?

They went on to become a high performer at a competitor.

Are your assessments starting conversations or closing them?