Analyzing Relationships: Research Method Selection

Hard Unit 1: Scientific Foundations Research Methods

Dr. Smith wants to explore the relationship between sleep duration and academic performance among high school students. To accomplish this, she surveys 200 students about their average nightly sleep hours over the course of a week and their last reported GPA. After collecting the data, Dr. Smith wants to analyze it to determine if there is a significant relationship between the two variables. In the context of her research, which of the following methods would be the most appropriate for her to analyze the data and determine the strength and direction of the relationship between sleep duration and GPA?

A case study approach, focusing on a single student’s experiences.

A correlational analysis to assess the association between sleep hours and GPA.

An experiment where sleep duration is manipulated.

Using a focus group interview to gain qualitative insights.

A longitudinal study tracking students over several years.

Hint

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