Examlex
Dr.Paddock is a counseling psychologist who is interested in decreasing adjustment issues in first-year college students.She is curious if having students create collages of their first few weeks of school and then mailing them home will help students feel they have integrated their new life with their old and,as a result,will help them feel less homesick.She samples a group of 100 incoming college freshmen at her university and measures how homesick they are during the first week of school.During Week 4 of school,she has them make the collage and send it home.During Week 7 of school,she measures their homesickness again.She notices a significant reduction in the amount of homesickness from the pretest to the posttest and concludes that her treatment is effective.
-Imagine in Dr.Paddock's study that only 90 of the original participants completed the measure of homesickness during Week 7 (10 participants had left the university and were unavailable).Name two things that Dr.Paddock can do to address this possible threat to internal validity and why these should be done.
Global Warming
The long-term increase in Earth's average surface temperature due to human activities, primarily the emission of greenhouse gases.
Agriculture
The science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.
Migrations
The movement of groups or individuals from one place to another, often for reasons such as economic opportunities or environmental factors.
Globalization
The process by which businesses or other organizations develop international influence or start operating on an international scale.
Q2: Masked,or blind,study designs are designed to deal
Q13: A common finding in the study of
Q15: Which of the following is true of
Q16: Why do studies that use probability samples
Q18: Dr.LaGuardia is curious as to whether children
Q30: How many subcategories of quantitative variables exist?<br>A)Two<br>B)Three<br>C)Four<br>D)Five
Q41: Observer bias relates mainly to _ whereas
Q41: Explain why many people feel that physiological
Q53: Why is the statistical validity of a
Q55: Establishing construct validity would probably be most