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Due Date: April 2025
RESEARCH DESIGNS IN THE STUDY OF HUMAN DEVELOPMENT
1. Introduction
The study of human development seeks to understand how individuals grow, change, and
adapt across their lifespan. Researchers employ various research designs to explore
different aspects of human development, each with its strengths and limitations. The
choice of research design depends on the nature of the research question, ethical
considerations, and practical constraints. Kail et al. (2019) identify key research designs,
including longitudinal, cross-sectional, sequential, experimental, and case study designs.
These approaches allow researchers to examine biological, psychological, and social
changes at different stages of life. Understanding the benefits and drawbacks of each
design is crucial for selecting the most appropriate methodology for a given research
question. This paper compares and contrasts these research designs, highlighting their
advantages and disadvantages. Furthermore, a specific research design will be applied to
an example related to human development to illustrate its practical use in the field
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