In a Study Which Investigated the Effects of Amount of Coffee

question 30

Multiple Choice

In a study which investigated the effects of amount of coffee consumption and mood (good or bad) on driving speed, the magnitude of effects estimates were as follows: Coffee:
; Mood:
; Coffee × Mood:
. Together, how much of the variability in driving speed is accounted for by Coffee, Mood, and their interaction?

• A) cannot determine
• B) .49
• C) .51
• D) .19

---

Definitions:

Background Emotions

Persistent emotional states that do not necessarily stem from specific events but rather influence perception and behavior over time.

Good Mood

A positive state of mind characterized by feelings of joy, satisfaction, and well-being.

Hierarchy

An organizational or structural system where elements are ranked or classified according to levels of importance or authority.

Temporal Factor

An element that relates to the timing or duration of events, often influencing their outcomes or perceptions.