Answer:
Interpretive research
Step-by-step explanation:
You want to study how mothers, fathers, and adopted children interact in the first year of their time together. Your method-of-choice is to visit the families once a week and record their verbal interactions. Then you read the transcripts you've made of those conversations and use them as text that helps you better understand what is going on between them. You are engaging in interpretive research.
Interpretive research is a research that is based on naturalistic approach of data collection such as interviews and observations. The interpretation of results is based on subjective observations made by the research during the course of the study. Interpretive research is concerned with understanding social realities. The study of how mothers, fathers and adopted children relate is an example of interpretive research.