I cant determine which methods are used for the links below. One or the other. Quantitative or Qualitative.

But if if qualitative which type: Phenomenology, Ethnography, Case study, Grounded theory, Historical research

But if its quantitative, then which type: Descriptive Research Design. Survey Research. Correlational Research Design., Quasi-experimental Research Design, or Experimental Research Design

1. https://journals.sagepub.com/doi/abs/10.1177/1521025119854688
2. https://www.researchgate.net/publication/347892854_On_Being_the_First_The_Role_of_Family_in_the_Experiences_of_First-Generation_College_Students
3. https://files.eric.ed.gov/fulltext/EJ1255401.pdf
4. https://spssi.onlinelibrary.wiley.com/doi/full/10.1111/asap.12288