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Questions tagged [diagnostic-test]

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6 votes
1 answer

Did "the" (or a) European Court declare that Covid-19 PCR tests are "not fit for purpose"?

In a long video denying the validity of Covid-19 PCR tests, it's stated at one point (15:17), without much context that the European court declaring that Covid-19 tests are "not fit for purpose&...
against very long user names's user avatar
6 votes
3 answers

Has SARS-CoV-2 been purified in a lab? If not, does this imply that the PCR test for it is not specific?

Dr. Sam Bailey gives a number of references in her YouTube video on PCR tests stating the virus has never been purified as in actually separated from the infected cells. I'm curious if this is ...
Matko's user avatar
  • 179
2 votes
0 answers

Clifton StrengthsFinder [closed]

A friend of mine is trying to convince me to go take a Clifton StrengthsFinder test and participate in related seminars. I have trouble inding any information about the test that does not come from ...
Xyzk's user avatar
  • 231
3 votes
1 answer

When they say "error rate" for identifying hand writing, do they mean false positives, false negatives, or both? [closed]

With regards to verifying a person's signature, this book states (page 429) The error rate was 6.5 percent for the experts and 38.3 percent for nonexperts. What exactly does the error rate ...
Celeritas's user avatar
  • 2,574
15 votes
2 answers

Are there laboratory tests for mental disorders?

So, as usual, another one of our friends on Facebook has decided to link to something "denouncing the evils of the modern medical establishment", claiming that (among other things) there are no lab ...
Clockwork-Muse's user avatar
11 votes
1 answer

Is it possible to (reliably) diagnose malaria with a noninvasive device/smartphone app?

Today, I was made aware of a research project made by Ugandan CS students who claim to have built a smartphone app together with a device called a "matiscope" that [...] uses a red light to ...
Tim Pietzcker's user avatar
45 votes
2 answers

Can you test for microwave leaks by putting a cell phone inside and calling it?

I heard as long ago as 2003 that trying to call a cell phone while it's inside a microwave (with the microwave off, of course) could be used to test if the shielding of the microwave was intact. I ...
Hendy's user avatar
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