the Hawthorne effect
noun
ukusHR
thetheorythat people’sperformanceatworkimprovesif theyknowthey are beingstudiedor being givenspecialattentionbymanagement:
Thefactthatpeoplewhoknewthey were takingpartin thestudyperformedbettermay have beendueto thepsychologicalphenomenonknownas the Hawthorneeffect.