Not to be confused with Affect (disambiguation).

Effect may refer to:

• A result or change of something

• • Effect of depression on mortality in heart disease
  • Effects and aftermath of rape
  • Effects of alcohol use
  • Effects of bullying
  • Effects of cannabis
  • Effect of placebo
  • Effects on cognitive functioning in mental health
  • Long-term effects of benzodiazepines
  • Psychological effects of exposure to white noise
  • Psychological effects of illness
  • Psychological effects of single parenting

• List of effects in psychology
  • Abney effect
  • Abraham Lincoln effect
  • Audience effect
  • Baldwin effect
  • Bandwagon effect
  • Bezold effect
  • Blocking effect
  • Boomerang effect
  • Bruce effect
  • Bystander effect
  • Ceiling effect
  • Cinderella effect
  • Contrast effect
  • Coolidge effect
  • Discontinuity effect
  • Endowment effect
  • Environmental effects
  • Acceleration effects
    • Altitude effects
    • Cold effects
    • Decompression effects
    • Doppler effect
    • Gravitational effects
    • Isolation effect
    • Noise effects
    • Temperature effects
      • Heat effects
    • Underwater effects
  • Experience curve effects
  • Experimenter effect
  • False consensus effect
  • Flynn effect
  • First pass effect
  • Forer effect
    • Framing effects
      • Framing (economics)
      • Framing (communication theory)
      • Framing (psychology)
      • Framing (social sciences)
  • Generation effect
  • Halo effect
  • Hawthorne effect
  • Ideomotor effect
  • Kinetic screen effect
  • Lake Wobegon effect
  • Levels-of-processing effect
  • Levitin Effect
  • Lombard effect
  • Lunar effect
  • McClintock effect
  • McGurk effect
  • McCollough effect
  • Maternal effect
  • Mere exposure effect
  • Misinformation effect
  • Mozart effect
  • Negativity effect
  • Nocebo effect
  • Numerosity adaptation effect
  • Observer effect
  • Observer-expectancy effect
  • Overconfidence effect
  • Overjustification effect
  • Partner effects
  • Picture superiority effect
  • Piston effect
  • Positivity effect
  • Practice effects
  • Primacy effect
  • Propinquity effect
  • Pseudocertainty effect
  • Pulfrich effect
  • Purkinje effect
  • Pygmalion effect
  • Rashomon effect
  • Rebound effect
  • Recency effect
  • Ringelmann effect
  • Serial position effect
  • Simon effect
  • Sleeper effect
  • Split attention effect
  • Stiles–Crawford effect
  • Stroop effect
  • Subject-expectancy effect
  • Sylvia Plath effect
  • Testing effect
  • Thatcher effect
  • Tinkerbell effect
  • Tunnel effect
  • Valence effect
  • Wagon-wheel effect
  • Westermarck effect
  • Whitten effect
  • Worse-than-average effect
  • Zeigarnik effect

• Cause and effect, an idiom describing causality

It may also refer to:

• Effect size (statistical)
• Effectiveness
  • Cost effectiveness
  • Management effectiveness
  • Organizational effectiveness
  • Therapist effectiveness
  • Teacher effectiveness evaluation

• Efficacy
• Efficacy expectations

In Health careEdit

• Effect of outcome/progress feedback on clinical effectiveness
• Side effects (treatment)
• Therapeutic effect

In pharmacy and pharmacology:

• Drug effect, a change resulting from the administration of a drug
  • Therapeutic effect, a beneficial change in medical condition, often caused by a drug
  • Adverse effect or side effect, an unwanted change in medical condition caused by a drug
• Dose-response effect, the relationship between a drug dose and its effect, plotted on a dose-response curve

See alsoEdit

• Fixed effects estimator
• Late effect
• Law of Effect
• Main effect
• Random effects model
• Sparsity-of-effects principle