In Trying to Construct a Model to Estimate Grades on a Statistics

question 194

True/False

In trying to construct a model to estimate grades on a statistics test,a professor wanted to include,among other factors,whether the person had taken the course previously.To do this,the professor included a dummy variable in her regression model that was equal to 1 if the person had previously taken the course,and 0 otherwise.The interpretation of the coefficient associated with this dummy variable would be the mean amount the repeat students tended to be above or below non-repeaters,with all other factors the same.

---

Definitions:

Selective Attention

The cognitive process of focusing on a particular object or task, while ignoring irrelevant information.

Cognitive Abilities

Mental capabilities involved in learning, reasoning, problem solving, and adapting to new situations.

Encoding

The first step of transforming data into a format that can be preserved in memory.

PKU

Short for Phenylketonuria, a genetic disorder characterized by the inability to metabolize phenylalanine, leading to its accumulation and potential brain damage.