Dr. Tepper-Harmon believes that life-span development cannot be studied without considering biological, socioemotional, and cognitive dimensions. Dr. Tepper-Harmon believes that development is:

1. plastic.

2. multidimensional.

3. multidirectional.

4. contextual.

2. multidimensional.

Explanation:

The phrase "development is multidimensional" is described as a phenomenon that states it encompasses a "dynamic interaction" of various factors including psychosocial, physical, and emotional development. However, development is considered as plastic in nature, which states that the characteristics associated with it referred to as changeable or malleable.

In the question above, Dr Tepper-Harmon believes that development is multidimensional.