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So far vxupv has created 12 blog entries.

The Dirty Little Secrets of Validity Testing

One of the dirty little secrets in the assessment business is the way that assessments are validated. There are no formal systematic approaches for the validation of tests that are easy for tests users, not versed in statistics, to follow.

The Dirty Little Secrets of Validity Testing 2019-07-22T06:40:38+00:00

The Changing Nature of the Celebrity Psychologist

A recent article in 'Nature' highlighted the potential conflict of interest that may exist for psychologists who earn an income from public speaking on topics for which they are researching.

The Changing Nature of the Celebrity Psychologist 2019-07-12T12:09:52+00:00

Positive Psychology Interventions Have Limited Impact, and It Is Time to Celebrate

A recent study published in PLoS ONE conducted a reanalysis of a meta-analysis on Positive Psychology Interventions (PPI’s). A meta-analysis is, in simple terms, a statistical means of combining data from a lot of studies, and is an analysis of analysis. The results of a meta-analysis are often more robust than single studies as they combine data from multiple sources.

Positive Psychology Interventions Have Limited Impact, and It Is Time to Celebrate 2019-06-09T05:26:22+00:00

Replication Is the Bedrock of Science – Should It Be Predicted?

I think the claims to measurement in our discipline are on shaky ground to put in politely. As such, I often think that we should be focussed more on the evaluation of usefulness rather than infinitesimally small gains in measurement accuracy.

Replication Is the Bedrock of Science – Should It Be Predicted? 2019-05-24T13:52:11+00:00

Gamification in Personnel Selection and the Need for Real-world Evaluation

The International Journal of Selection and Assessment recently included a feature article on the gamification of assessment. While the research methodology in the article was sound, I could not help but think that the article in many ways symbolised what is wrong with much of the assessment literature that emphasises psychometric properties as opposed to practical utility.

Gamification in Personnel Selection and the Need for Real-world Evaluation 2019-05-06T02:46:39+00:00

Lifetime Goals and Long-Term Lessons

Over the past six years, I have had more injuries, than at any other time in my life. I have also had to cross train harder, simply to be able to make it to training each week. The irony is that I have loved every minute of my judo journey and would not change one aspect of the past six years.

Lifetime Goals and Long-Term Lessons 2019-06-07T11:22:27+00:00

Are Leaders Psychopathic?

Many of us have experienced bosses whose behaviours we colloquially see as psychopathic, and this makes for attractive click-bait. The reality is however far more nuanced.

Are Leaders Psychopathic? 2019-04-16T02:01:15+00:00

Finally, Some Good News of the Replication Front – Sorta

While the failure to replicate findings from the psychological literature has been a common critique of psychology in the recent press, one area of psychology which does appear to replicate is that of trait-based prediction, a finding that is especially relevant for I/O Psychology.

Finally, Some Good News of the Replication Front – Sorta 2019-04-12T05:41:39+00:00

Plagiarism in the 21st Century

Turnitin, the plagiarism detector that most Universities has been sold. Having used Turnitin for years now, I have found the software to be improving continually, and the software regularly picks most aspects of plagiarism relatively fast.

Plagiarism in the 21st Century 2019-04-01T00:42:05+00:00

The Insignificance of Significance Testing

This week, scientists from around the world have made a call to stop the over-reliance on the use of statistical significance testing

The Insignificance of Significance Testing 2019-03-28T02:03:15+00:00