Anne's study compared pre-post differences in prekindergarten children's strategies for alternatives to violent displays when frustrated by others. She found that there were differences between pre and posttesting. With which validity threat should Anne be most concerned?

Maturation

Explanation:

Maturation can be described as one of the threats to internal validity whereby participants tend to change over time, this can be clearly observed in the sudden change in the life of students as they transition from high school to college, the student become adjusted to college life.

The self awareness that prompts a change of behaviour as on leaves an environment to another.

Anne finding that there were differences between pre and posttesting is most likely going to cause a change in how she respond to the difference.

Hence, Maturation validity threat.

the answer is a. monarch

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.