Asked by Samantha Saldana on Jul 13, 2024

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Dr. Cross is studying whether the psychological trait of dependency vs. independence changes as one gets older. He collects data from first, fourth, and ninth graders. Dr. Cross is studying the relationship between age and dependency/independence using _______ research.

A) longitudinal
B) cross-sectional
C) case study
D) applied

Cross-Sectional Research

An observational study variant that evaluates data from a population, or a representative sample, at a particular moment.

Longitudinal

A study design that involves repeated observations of the same variables over short or long periods of time.

Case Study

Study of one individual in great detail.

  • Discern between contrasting research models in developmental psychology, for instance, cross-sectional versus longitudinal approaches.
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LL
Lambert Louise LolengJul 15, 2024
Final Answer :
B
Explanation :
Dr. Cross is collecting data from individuals of different ages (first, fourth, and ninth graders) at the same time to compare their levels of dependency/independence. This is an example of cross-sectional research as it compares different groups at the same point in time rather than following the same group of individuals over time (longitudinal) or focusing on a single individual or case (case study). It is also not necessarily applied research, as it is primarily focused on understanding a psychological trait rather than solving a specific practical problem.