Assuming a Hubble Time of 13

question 11

Multiple Choice

Assuming a Hubble time of 13.6 billion years and a constant rate of expansion of the universe,what was the scale factor (R_U) of the universe 10.2 billion years ago (compared to today) ?

• A) 0.25
• B) 0.50
• C) 0.67
• D) 0.75

---

Definitions:

Nondepressed Participants

Individuals who do not exhibit symptoms of depression and are often used as a control group in psychological research.

Depressed Participants

Individuals involved in a study or research who exhibit symptoms of depression, including persistent sadness, lack of interest in activities, and possible physical symptoms affecting their participation.

General Memory Abilities

The overall capacity of an individual to store, retain, and recall information and past experiences.

General Aggression Model

A comprehensive framework for understanding the causes, mechanisms, and expressions of aggression.