A developmental psychologist plans to study children's physical growth. Using the classic example of a positive correlation between height and weight, write 1-3 sentences predicting how a child's weight would statistically be expected to change as they grow taller, and state the direction of change for both variables.
Question: A developmental psychologist plans to study children's physical growth. Using the classic example of a positive correlation between height and weight, write 1-3 sentences predicting how a child's weight would statistically be expected to change as they grow taller, and state the direction of change for both variables.
Sample answer: As a child grows taller, their weight is statistically expected to increase. This is because height and weight share a positive correlation, meaning both variables change in the same direction.
Key points:
- Predict that weight will increase as height increases.
- Identify that height and weight are changing in the same direction.
- Apply the concept of a positive correlation to child growth variables.
Rubric: The answer must predict that the child's weight will increase as they grow taller, apply the concept that height and weight share a positive correlation, and state that both variables change in the same direction.
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Research Methods in Psychology - 4th American Edition @ KPU
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A developmental psychologist plans to study children's physical growth. Using the classic example of a positive correlation between height and weight, write 1-3 sentences predicting how a child's weight would statistically be expected to change as they grow taller, and state the direction of change for both variables.