Beginning: Kate Middleton was born on January 9, 1982 at <span>Royal Berkshire Hospital in Reading, England.
</span>Middle: <span>One of Kate's causes is Children's Cancer.
</span> Many people think of Kate as a princess but she is actually The Duchess of Cambridge.
End: <span>What I learned was that Kate Middleton is not a princess she is a Duchess.</span>
Answer:
random assignment
Explanation:
Random assignment is an experimental technique that seeks to form random and fully randomized experimental groups in relation to the treatments presented in the research. This type of technique prevents the formation of "combined groups" that show the differences to each other and can generate a comprehensive result on the research, thus the random formation of diverse groups that can represent a much larger and different population.
An example of this can be seen in the question above, where the researcher decides the formation of the group that will receive the medicine and the group that will receive the placebo, completely randomly.
I'd say it would be speaker 4 since it mentions a specific interest like you said
