Exam 2: Assessment and Methods

Dr. Zarkov is investigating whether drinking white milk or chocolate milk before bedtime makes someone sleepy. What are the independent and dependent variables in this study?

Explain the difference between a positive and a negative correlation, and give an example of each.

A normal distribution is sometimes referred to as a __________.

Why are experiments not often used in personality psychology?

Dr. Sardonicus administers a test of self-esteem to her class during the first week in the semester. Three weeks later she administers the same test to the same group of test takers in the same setting. What can Dr. Sardonicus determine by correlating to two sets of scores?

A group of test takers provided the following responses for an item on a scale: 10, 10, 11, 15, 15, 15, 15, 16, 17, and 17. What is the mode of this set of scores?

Which statement is correct regarding responses to the Marlowe-Crowne scale?

Kai is using multiple assessment methods to learn about one aspect of personality. Kai is employing what method?

Dr. Caligari is assessing Matteo's physical reactions to stimuli such as bright lights and loud sounds in order to estimate Matteo's degree of openness to experience. Dr. Caligari is using a __________ to collect information.

Tanya loves to complete questionnaires that she finds online and in magazines. "It's fun and easy!" Tanya exclaims. "I circle 'strongly agree' for every item to show how much I appreciate the test makers' time and effort and to let them know I'm helping them with their research!" What questionnaire-taking style is Tanya demonstrating?

The average score on a scale is found by computing the __________.

A broken watch always shows the same time. It is __________.

Geraldo scored in the top 10 percent of test takers on a measure of personality. What percentile score corresponds to Geraldo's performance?

__________ is a measure of how far a score is from the average in a normal distribution.

In a study in which college students are pampered (given large amounts of money, subscription television services, and spicy Chinese food) to see whether this treatment will improve their scores in their psychology course, what is the independent variable?

Dr. Bricker wants to find out which part of her volunteers' brains react to seeing unusual information by measuring relative amounts of blood flow to various brain regions. She will most likely collect her data by using __________.

The score that falls in the middle of all the scores on a test, leaving half of the scores above it and the other half of the scores below it, is called the __________.

Before asking people to participate in a research project, an investigator must provide them with a document providing __________.

Duane is using a numbers table to assign participants to each of the three conditions in his study. He is using __________.

Ice cream sales tend to increase as the temperature outside increases. This relationship is an example of a(n) __________.