In long-term relationships, "opposites attract" is a correct statement, and "birds of a feather flock together" is generally incorrect

Jack, a student writing his thesis, asks the participants of his experiment to transfer data in six spreadsheets to different spreadsheets. He notes that the participants get faster in transferring the data with each new task they complete. This scenario exemplifies a(n) ____________

Fill in the blank(s) with the appropriate word(s).

Sherif's autokinetic effect study was an illustration of informational influence

Indicate whether this statement is true or false.