placebo

noun 0.809

nocebo

noun 0.641

effect

noun 0.576

sugar pill

noun 0.571

desired effect

noun 0.570

self-fulfilling prophecy

noun 0.550

side effect

noun 0.549

adverse effect

noun 0.524

feel-good factor

noun 0.521

knock-on effect

noun 0.512

ill effect

noun 0.512

vital effect

noun 0.511

resonance effect

noun 0.507

greenhouse effect

noun 0.506

efficacy

noun 0.506

third-person effect

noun 0.505

self-suggestion

noun 0.504

practical effect

noun 0.503

bandwagon effect

noun 0.502

effectiveness

noun 0.501