reductionism : breaking down behaviour into simpler components (bio/ slt/ cog/ behav)
holism: study of behaviour as a whole (humanistic).
levels of explanation for behaviour:
biological
psychological
environmental
strengths:
high validity (holism)
easy to conduct scientific research (reduct)
limitations:
impractical in research (holism).
lacks validity (reduct).
gestalt psychologists : "the whole is greater than the sum of its parts" - focuses on the perception, only makes sense through consideration as a whole.
experimental reductionism : complex behaviour reduced to variables (IV/ DV).