ABSTRACT
This chapter explores a broad conceptualisation of the forgotten half was adopted so as to include young people aged 12-24 years who experience significant barriers to participating in research projects. It explains the need for researchers when publishing hard to reach studies to clearly articulate their data collection techniques. In relation to quantitative retrospective case studies, an advantage is that large amounts of archival personal data can be mined from social networking sites, thus, making the technique cost-effective, time efficient and less restricted by ethical restraints. Respondent driven sampling (RDS) was developed to advance a theoretical method of facilitating the validation of convenience samples within hidden populations. Time Space Sampling (TSS) or Time Location Sampling (TLS) is typically used to generate representative samples in circumstances where the targeted population cohort is both hard to reach and location specific.
