Researchers Were Doing a Long-Term Study of Children's Relationships with Their

Multiple Choice

Researchers were doing a long-term study of children's relationships with their parent in the homes of the families.Before beginning to collect data,the observers visited each home a few times and set up their recording equipment and recorded behavior just as they would do in the data collection phase of their study.These early visits to the home were done to reduce reactivity.Which of the following techniques did these researchers use?

A) disguised observation
B) habituation
C) accommodation
D) interobserver reliability