Genetic Data from Fossils and Living Groups of People Tell

question 33

Multiple Choice

Genetic data from fossils and living groups of people tell us that

• A) modern humans evolved in Africa between 200 and 400 ka and all modern humans outside of Africa are descended from an African population.
• B) one small population of modern people left Africa about 60 ka and first traveled along the southern coast of Asia and then into Eurasia.
• C) there was extensive interbreeding between modern human populations and other hominins that lived in Eurasia, such as the Neanderthals.
• D) modern humans migrated out of Africa to Europe first and then traveled east to Asia.

---

Definitions:

Psychological Research

The scientific study of behavior, cognitive functions, and emotional processes in humans and animals through various methods and techniques.

Double-blind Procedure

A research method in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.

Experimenter Bias

Experimenter bias is a form of bias that occurs when a researcher's expectations or preferences about the outcome of a study influence the results.

Placebo Control Group

A group of participants in a study who receive a sham treatment, allowing for the comparison of the actual intervention’s effectiveness.