Back to AI Flashcard MakerPsychology /IB Psychology HL - BLOA - How And Why Particular Research Methods Are Used In BLOA

IB Psychology HL - BLOA - How And Why Particular Research Methods Are Used In BLOA

Psychology7 CardsCreated about 1 month ago

These involve manipulating an independent variable (IV) to observe its effect on a dependent variable (DV), often under controlled conditions. This method allows researchers to establish cause-and-effect relationships.

research methods used in BLOA

  • experimental studies (using scientific method)

  • case studies

  • correlational studies

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Key Terms

Term
Definition

research methods used in BLOA

  • experimental studies (using scientific method)

  • case studies

  • correlational studies

experimental studies

  • manipulates the IV to test its effect on a DV

  • used because they show clear causation between variables

  • thus s...

example of a typical experimental study

Bock and Goode (1996)

  • engineered genetic mutant mice with abnormally few serotonin receptors

  • to study the effect of se...

case studies

  • offers detailed insight into rare disorders caused by biological problems

  • collects as many details as possible

  • <...

example of a typical case study

Sacks (2007)

  • studied the musician Clive Wearing

  • suffers retrograde and anterograde amnesia

correlational studies

  • doesn’t necessarily involve the manipulation of IV

  • takes score on 2 or more measures and works out the relationship between ...

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TermDefinition

research methods used in BLOA

  • experimental studies (using scientific method)

  • case studies

  • correlational studies

experimental studies

  • manipulates the IV to test its effect on a DV

  • used because they show clear causation between variables

  • thus showing clear determinism

  • can easily isolate cognitive processes

Example: Bock and Goode (1996)

example of a typical experimental study

Bock and Goode (1996)

  • engineered genetic mutant mice with abnormally few serotonin receptors

  • to study the effect of serotonin on aggression

IV: amount of serotonin receptors
DV: number of bites/attacks

case studies

  • offers detailed insight into rare disorders caused by biological problems

  • collects as many details as possible

  • produces rich and personal data

  • high ecological validity but cannot be generalized to the entire population

Example: Sacks (2007)

example of a typical case study

Sacks (2007)

  • studied the musician Clive Wearing

  • suffers retrograde and anterograde amnesia

correlational studies

  • doesn’t necessarily involve the manipulation of IV

  • takes score on 2 or more measures and works out the relationship between them

  • this approach is central to twin studies

  • in twin studies the correlation represents the likelihood of the other twin having a particular characteristic that one of the twins is known to have

Example: Zietsch et al. (2008)

example of a typical correlational study

Zietsch et al. (2008)

  • mailed surveys to 5000 identical twins

  • to investigate the extent to which homosexuality affects attractiveness perceived by the opposite sex