Which of the following is a data-collection method commonly used in psychological research to observe and record behavior?

• A. Random assignment
• B. Naturalistic observation
• C. Statistical significance
• D. Double-blind procedure

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the question is asking for a data-collection method used to observe and record behavior in psychological research.
2. Step 2: Review each option to identify which one directly involves observing and recording behavior.
3. Step 3: Recognize that 'Random assignment' is a method used to assign participants to different groups, not a data-collection method.
4. Step 4: Identify 'Naturalistic observation' as a technique where researchers observe behavior in its natural environment without interference, making it a data-collection method.
5. Step 5: Note that 'Statistical significance' is a concept used to interpret data, and 'Double-blind procedure' is a method to reduce bias, neither of which are data-collection methods.