How did schaffer and Emerson get their participants?

Schaffer and Emerson conducted their study on attachment by recruiting participants from a working-class area in Glasgow, Scotland. They selected 60 infants, primarily from families that were already known to the researchers through health visits or local clinics. The infants were observed in their homes over time, allowing the researchers to gather qualitative data on their attachment behaviors. This approach provided a diverse sample reflective of the local population's socio-economic background.