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[giltsa]

What is the term for the influence of a test on its results?

[Q.E.D]

I think the term you are looking for is “bias”?

[giltsa]

I this that Bias is the influance it self I am looking for a term that is descriping a unique influance where preforming the test itself will change the results.

[Agape]

@giltsa

I this that Bias is the influance it self I am looking for a term that is descriping a unique influance where preforming the test itself will change the results.

Instrument reactivity?

[Peter_Morris]

Maybe you’re thinking of ** self fullfilling prediction** and self-defaeting prediction

Self fullfilling - an economist predicts ecomomic collapse, the prediction causes panic, panic causes collapse. If he hadn’t made the prediction, the collapse might not have happened.

Self defeating - an economist predicts economic collapse. Because they have the information, the Govt act to stop it. The collapse never happens. If he hadn’t made the prediction, the collapse would have happened. But because he did, it didn’t.
Is that what you meant?

[RealityChuck]

Heisenberg uncertainty principle: the results of an observation are affected by the fact it is being observed. This is a term from physics, but the same thing applies to any observation.

[Q.E.D]

@RealityChuck

Heisenberg uncertainty principle: the results of an observation are affected by the fact it is being observed.

No, sorry. This is not quite correct. From (among other sources) a Wikipedia article:

The uncertainty principle is sometimes erroneously explained by claiming that the measurement of position necessarily disturbs a particle’s momentum. Heisenberg himself offered this explanation initially. The role of disturbance is not essential, however, since precise values of momentum and of distance may well be obtained; but necessarily separately, not together, for the same system in the same trial. Correspondingly, any one particle (in the general sense, e. g. carrying discrete electric charge) cannot be described simultaneously as a “classic point particle” and as a wave.