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Psychological Experiments with Ethical Failures

Apr 22, 2025

Notable Psychological Experiments Gone Wrong

This lecture covered 10 psychological experiments that spiraled out of control, highlighting the ethical issues and consequences involved in each.

1. The Stanford Prison Experiment

  • Year: 1971
  • Researcher: Philip Zimbardo
  • Objective: To study how people conform to social roles.
  • Method: College students assigned roles as prisoners and guards in a mock prison.
  • Outcome: Guards became sadistic; prisoners became distraught. Experiment ended prematurely after 6 days due to distress.

2. The Monster Study

  • Year: 1939
  • Participants: 22 orphan children, 10 with stutters.
  • Method: Children divided into two groups; one received positive reinforcement, the other negative.
  • Outcome: Negative reinforcement group suffered psychological damage. Compensation awarded in 2007.

3. MK Ultra

  • Period: 1950s and 60s
  • Conducted by: CIA
  • Objective: Investigate mind control and psychology.
  • Outcome: Subjects, including Ted Kaczynski, reportedly suffered psychological damage. Contributed to mental instability.

4. Elephant on LSD

  • Year: 1962
  • Researcher: Warren Thomas
  • Objective: Study effects of LSD on elephants.
  • Outcome: Elephant named Tusko died almost immediately after being injected.

5. Milgram Experiment

  • Year: 1963
  • Researcher: Stanley Milgram
  • Objective: Test obedience to authority and potential for evil.
  • Method: Public participants "shocked" an actor for incorrect answers.
  • Outcome: Participants followed orders despite apparent distress of actor.

6. Tony Lamadre Study

  • Start Year: 1983
  • Objective: Study effects of withdrawing medication from schizophrenics.
  • Outcome: High relapse rate; participant Tony Lamadre committed suicide.

7. Pit of Despair

  • Researcher: Harry Harlow
  • Objective: Study concept of love.
  • Method: Isolate monkeys in a featureless chamber.
  • Outcome: Monkeys went insane, some starved themselves. Contributed to animal rights movement.

8. The Third Wave

  • Year: 1967
  • Objective: Explore susceptibility to fascism.
  • Method: High school students formed a hierarchy system.
  • Outcome: Students embraced exclusionary practices. Experiment ended after 4 days.

9. Homosexual Aversion Therapy

  • Period: 1960s
  • Objective: "Cure" homosexuality.
  • Method: Pair homosexual stimuli with negative experiences like electric shocks.
  • Outcome: Caused severe psychological damage, one participant died.

10. David Reimer Case

  • Year of Incident: 1966
  • Researcher: John Money
  • Objective: Prove gender identity is based on nurture.
  • Method: Reimer underwent sex change; raised as a girl.
  • Outcome: Experiment failed; Reimer reverted to male and committed suicide at age 38.