Psychologists employ a variety of tools and methods to study human behaviour which of the following methods to psychologists rely on to make systematic observations and draw conclusions about human behaviour.

Correct answer: D. Controlled Measurement and experimentation

  • A. Speculation and common sense
  • B. Generalisation and common sense
  • C. Hindsight and experimentation
  • D. Controlled Measurement and experimentation

Explanation

Controlled measurement makes observations objective and systematic, while experimentation allows psychologists to test relationships under defined conditions. Speculation, common sense, and hindsight cannot provide the same reliable empirical basis.

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