• Cost-Effectiveness: SDA eliminates the need for extensive data collection processes, making it a cost-effective solution for researchers with limited budgets.
• Time Efficiency: By leveraging existing datasets, researchers can significantly reduce the time from the inception of a research idea to the dissemination of findings.
• Access to Diverse Data: SDA provides access to a wide range of data, including large-scale datasets that might be difficult or impossible for individual researchers to collect on their own.
• Opportunity for Longitudinal Analysis: Utilizing data collected over time enables researchers to conduct longitudinal studies, examining trends and changes across different periods.
• Ethical Considerations: When original data collection poses ethical concerns, such as with vulnerable populations, SDA can offer a viable alternative that respects participants' privacy and consent.

While SDA presents numerous benefits, it also comes with its own set of challenges:

• Data Relevance: Ensuring the existing data adequately address the new research questions is crucial. Researchers must carefully assess the datasets to ensure compatibility with their research aims.
• Data Quality and Completeness: The quality and completeness of secondary data can vary, potentially impacting the validity of the research findings. Researchers must critically evaluate the data sources, methodology, and potential biases inherent in the dataset.
• Ethical and Legal Issues: Navigating the ethical and legal considerations, including issues of consent and data sharing, is essential. Researchers must ensure that their use of secondary data complies with all relevant regulations and ethical guidelines.