Professor Rodriguez Found a Strong Positive Relationship Between the Number

Multiple Choice

Professor Rodriguez found a strong positive relationship between the number of extra-curricular activities in high school and occupational success as an adult. She then controlled for the respondents' family class background upon beginning high school and the relationship vanished. In the elaboration paradigm, this is called

A) explanation pattern.
B) interpretation pattern.
C) specification pattern.
D) replication pattern.