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social, health, political imagery through the lens of George J Huba PhD © 2012-2019

Posts tagged psychometrics

I confess. In 1979 Pete Bentler and I published an article entitled “Simple Minitheories of Love” in the highest prestige journal on personality and social psychology.

Blame it on the exploits of the greatest psychometrician of his generation and a 28 year-old wanna-be psychometrician, both active personality researchers, trying to convince the field that the new statistical modeling methods (Structural Equation Models; LISREL) they were testing would revolutionize the field (I was wrong on that one, too).

Now ask yourself why neither of these guys — nor any of the other main figures in the fields of psychometrics, sociometrics, personality, social psychology, attraction research — ever went on to start a web site to match individuals on the basis of personality and life style questionnaires (I won’t dignify them by calling them tests); such sites became quite lucrative. This was in spite of the fact that at least one (Huba) had the opportunity to do so during the years when he was the Vice President of R&D for a major psychological testing company and later when most of the other competing testing companies hired him as consultant. Or why did the major personality test developer of his generation and the owner of a psychological testing company (the late Doug Jackson) never consider developing such a product?

See a pattern here? Even the folks who made the most $$$ from psychological instruments and had the most influence in the psychological assessment journals and industry did not develop a Love Site.

I concede that a Love Site may be a good place to find people you might not never meet otherwise through your social and work friends and these might be good mates or sex partners. Or they might be psychopaths, perpetuators of sexual or domestic violence, dependent individuals, or alcoholics.

So far as I can tell from the undisclosed algorithms of the dating sites and their unpublished outcomes, I have no way of knowing for sure if the sites have a good chance of producing a good outcome and avoiding a terrible (and life-threatening) one. I suspect that if there were strong scientific evidence that the sites “work” in both cases, there would be a lot of scientific research published that supports this notion. Where is the incontrovertible evidence? Can I can read it or hear it at professional conventions? Claims on TV that a lot of people got married mean little or nothing without information about comparison groups or negative outcomes.

I would have no problem concluding that the Love Sites are effective if there were psychometric and other scientific evidence that the algorithms used are valid. Without such evidence, I worry that they are more voodoo and “smoke and mirrors” than places where you can find a mate and your date will not result in a rape. Of course I cannot prove my position is right, but neither can the Love Sites. My stance is safer for individuals.

There is that old fashioned system of “meet and greet and respect the people you meet” that did produce so many humans that we now have a problem with world-wide population growth. Sometimes older methods work better if you are patient.

Love Sites

BIG Data is coming (or has already come) to healthcare. [It is supposed to usher in new eras of research, economic responsibility, quality and access to healthcare, and better patient outcomes, but that is a subject for another post because it is putting the carriage before the horse to discuss it here.]

What is a data scientist? A new form of bug, a content expert who also knows data issues, an active researcher, someone trained in data analysis and statistics, someone who is acutely aware of relevant laws and ethical concerns in mining health data, a blind empiricist?

This is a tough one because it also touches on how many $$$$$ (€€€€€. ¥¥¥¥¥ , £££££, ﷼﷼﷼﷼﷼, ₩₩₩₩₩, ₱₱₱₱₱) individuals and corporations can make off the carcass of a dying healthcare system.

Never one to back away from a big issue and in search of those who value good healthcare for all over the almighty $ € ¥ £ ₨ ﷼ ₩ ₱, here are some of my thoughts on this issue.

Click image to zoom.

who is a health data scientist

Content knowledge by a well-trained, ethical individual who respects privacy concerns is Queen. Now and forever.

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topics and subtopics: who is a “health” data scientist? trained in healthcare? methodology research databases management information systems psychology? psychometrics other public health? epidemiology other medicine? nursing? social work? education? biostatistics? medical informatics? applied mathematics? engineering? theoretical mathematics? theoretical-academic statistics? information technology? computer science? other? conclusions must know content 70% methods 30% must honor ethics 100% laws practice privacy criminal civil federal state other greatest concerns correctness of results conclusions ethical standards meaningfulness validity reliability privacy utility expert in content field data analysis data systems ethics and privacy other member? association with ethics standards licensed? physician nurse psychologist social worker other regulated? federal hipaa state other insured? professional liability errors and omissions continuing education requirements? ethics renewal of licensure regulatory standards insurer commonsense laws go away if not well trained content field data analysis not statistics committed clean data meaningfulness subject privacy peer review openness ethics ethics ethics are arrogant narrow-minded purely commercial primarily motivated $$$$$ blind number cruncher atheoretical © 2013 g j huba