Answered: represent the population. Create…

Ciccarelli: Psychology_5 (5th Edition)

5th Edition

ISBN:9780134477961

Author:Saundra K. Ciccarelli, J. Noland White

Publisher:Saundra K. Ciccarelli, J. Noland White

Chapter1: The Science Of Psychology

Section: Chapter Questions

Problem 1TY

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Question

Dr. Milano is interested in exploring the relationship between playing violent video games and committing real world acts of aggression. To make sure that other researchers can replicate his research, Dr. Milano must do which of the following?

Create a theory based on many observations to enhance its validity.
Use a random sample to accurately represent the population.
Create operational definitions for “aggression” and “violent video games”.
Use a longitudinal method to represent different age groups.
Use a cross-sectional method to represent different age groups.

Dr. Singh discovers a strong negative correlation between hours spent exercising and reported stress levels. Her findings indicate which of the following?

Lack of exercise is a major contributor to stress levels and a major cause of stress-related illnesses.
If people exercise daily, they will not experience any stress and will generally be in better health.
Exercising causes stress levels to lower when compared to other types of non-aerobic activities.
People who exercise more tend to have lower levels of reported stress than those who do not exercise.
People who exercise regularly tend to have higher levels of reported stress than those who do not exercise.