Question 1

When measure X gets larger,measure Y also gets larger in a

Accepted Answer

A) zero correlation. 
B) positive relationship. 
C) variable relationship. 
D) negative relationship. 
A) zero correlation. 
B) positive relationship. 
C) variable relationship. 
D) negative relationship.

Question 2

Each member of the population has an equal opportunity of being included in the sample when an experimenter uses

Accepted Answer

A) standard deviation sampling. 
B) a negative correlation. 
C) a frequency distribution. 
D) random selection. 
A) standard deviation sampling. 
B) a negative correlation. 
C) a frequency distribution. 
D) random selection.

Question 3

An advantage of using the mode is that it

Accepted Answer

A) is sensitive to very high or very low scores in a distribution. 
B) gives the score actually obtained by the greatest number of people. 
C) is very reliable when there is a small group of scores. 
D) is the most valid inferential statistic that one can use. 
A) is sensitive to very high or very low scores in a distribution. 
B) gives the score actually obtained by the greatest number of people. 
C) is very reliable when there is a small group of scores. 
D) is the most valid inferential statistic that one can use.

Question 4

Measures of variability belong to which of the following?

Accepted Answer

A) nominal scales 
B) ordinal scales 
C) descriptive statistics 
D) inferential statistics 
A) nominal scales 
B) ordinal scales 
C) descriptive statistics 
D) inferential statistics

Question 5

To conclude that a cause-and-effect relationship exists,we must use a(n) _______.

Accepted Answer

The answer of To conclude that a cause-and-effect relationship exists,we...

Question 6

Which of the following is NOT an example of the use of graphical statistics?

Accepted Answer

A) breaking down a set of math test scores into classes of equal size 
B) drawing a histogram based on a set of scores from a personality questionnaire 
C) graphing a set of IQ scores using a frequency polygon 
D) generalizing from small samples to a larger population 
A) breaking down a set of math test scores into classes of equal size 
B) drawing a histogram based on a set of scores from a personality questionnaire 
C) graphing a set of IQ scores using a frequency polygon 
D) generalizing from small samples to a larger population

Question 7

When measure X gets larger,measure Y gets smaller in a(n) _______ correlation.

Accepted Answer

The answer of When measure X gets larger,measure Y gets...

Question 8

Abscissa is to ordinate as

Accepted Answer

A) vertical axis is to horizontal axis. 
B) horizontal axis is to vertical axis. 
C) measure of central tendency is to frequency distribution. 
D) frequency distribution is to measure of central tendency. 
A) vertical axis is to horizontal axis. 
B) horizontal axis is to vertical axis. 
C) measure of central tendency is to frequency distribution. 
D) frequency distribution is to measure of central tendency.

Question 9

When two variables vary together in some orderly fashion,they are

Accepted Answer

A) significant. 
B) representative. 
C) correlated. 
D) causally related. 
A) significant. 
B) representative. 
C) correlated. 
D) causally related.

Question 10

Describe the function of the measures of variability;name and define two of these measures.

Accepted Answer

Answer will include that the measures of

Question 11

Given these scores 22,44,33,55,33,22,44,22,55,22,the mode is

Accepted Answer

A) 22. 
B) 33. 
C) 44. 
D) 55. 
A) 22. 
B) 33. 
C) 44. 
D) 55.

Question 12

What percent of all cases are found between a standard deviation (SD)of +2 and an SD of -2 on a normal curve?

Accepted Answer

A) 50 
B) 68 
C) 95 
D) 99 
A) 50 
B) 68 
C) 95 
D) 99

Question 13

Groups of scores from distributions that are approximately normal can be compared because the relationship does not change between the normal curve and the

Accepted Answer

A) standard deviation. 
B) median. 
C) mode. 
D) coefficient of correlation. 
A) standard deviation. 
B) median. 
C) mode. 
D) coefficient of correlation.

Question 14

When the scores are widely spread,the number representing this variability will be

Accepted Answer

A) large. 
B) small. 
C) random. 
D) in the negative domain. 
A) large. 
B) small. 
C) random. 
D) in the negative domain.

Question 15

On a normal curve,68 percent of all the cases would be found between which two standard deviations (SDs)?

Accepted Answer

A) 0 and +2 
B) -1 and +1 
C) -2 and +2 
D) -3 and +3 
A) 0 and +2 
B) -1 and +1 
C) -2 and +2 
D) -3 and +3

Question 16

The more time students spend sleeping in class,the lower their grades are.This would be a

Accepted Answer

A) zero correlation. 
B) positive relationship. 
C) variable relationship. 
D) negative relationship. 
A) zero correlation. 
B) positive relationship. 
C) variable relationship. 
D) negative relationship.

Question 17

The political science class randomly selected 150 adults from the community in order to obtain their opinions on the upcoming presidential race.This group of 150 people would be considered the

Accepted Answer

A) representative sample. 
B) experimental group. 
C) population. 
D) control group. 
A) representative sample. 
B) experimental group. 
C) population. 
D) control group.

Question 18

In psychology,any experimental result that could have occurred by chance only five times (or less)out of 100 is considered to be

Accepted Answer

A) lucky. 
B) random. 
C) biased. 
D) significant. 
A) lucky. 
B) random. 
C) biased. 
D) significant.

Question 19

In your study to determine the best method to teach current events to freshmen college students at your college,what would constitute your population and sample,and how would your sample be chosen and why? After obtaining your results,if you find that the new method produced higher scores than the old method of instruction,how will you determine if this difference was a "real difference" or occurred by chance?

Accepted Answer

Answer will include that your population

Question 20

A bar graph is to a histogram as dots connected by straight lines are to a

Accepted Answer

A) diorama. 
B) frequency polygon. 
C) pictograph. 
D) scatterplot. 
A) diorama. 
B) frequency polygon. 
C) pictograph. 
D) scatterplot.

Exam 81: Understanding Descriptive and Inferential Statistics for Psychological Research

When measure X gets larger,measure Y also gets larger in a

Each member of the population has an equal opportunity of being included in the sample when an experimenter uses

An advantage of using the mode is that it

Measures of variability belong to which of the following?

To conclude that a cause-and-effect relationship exists,we must use a(n) _______.

Which of the following is NOT an example of the use of graphical statistics?

When measure X gets larger,measure Y gets smaller in a(n) _______ correlation.

Abscissa is to ordinate as

When two variables vary together in some orderly fashion,they are

Describe the function of the measures of variability;name and define two of these measures.

Given these scores 22,44,33,55,33,22,44,22,55,22,the mode is

What percent of all cases are found between a standard deviation (SD)of +2 and an SD of -2 on a normal curve?

Groups of scores from distributions that are approximately normal can be compared because the relationship does not change between the normal curve and the

When the scores are widely spread,the number representing this variability will be

On a normal curve,68 percent of all the cases would be found between which two standard deviations (SDs)?

The more time students spend sleeping in class,the lower their grades are.This would be a

The political science class randomly selected 150 adults from the community in order to obtain their opinions on the upcoming presidential race.This group of 150 people would be considered the

In psychology,any experimental result that could have occurred by chance only five times (or less)out of 100 is considered to be

A bar graph is to a histogram as dots connected by straight lines are to a

Introduction

How to Study Psychology

Introducing Psychology: Psychology, Critical Thinking, and Science

Introducing Psychology: Psychology Then and Now

Introducing Psychology: the Psychology Experiment

Introducing Psychology: Non-Experimental Research Methods

Psychology in Action: Thinking Critically About the Media

Brain and Behavior: Neurons and the Nervous System

Brain and Behavior: Brain Research

Brain and Behavior: Hemispheres and Lobes of the Cortex

Brain and Behavior: Sub-Cortex and Endocrine System

Psychology in Action: Handedness

Human Development: Heredity and Environment

Human Development: Emotional and Social Development in Childhood

Human Development: Language and Cognitive Development in Childhood

Human Development: Adolescence and Adulthood

Psychology in Action: Well-Being and Happiness

Sensation and Perception: Sensory Processes

Sensation and Perception: Vision

Sensation and Perception: The Other Senses

Sensation and Perception: Perceptual Processes

Sensation and Perception: Perception and Objectivity

Psychology in Action: Extrasensory Perception

Consciousness: States of Consciousness

Consciousness: Sleep and Dreams

Consciousness: Psychoactive Drugs

Psychology in Action: Exploring and Using Dreams

Conditioning and Learning: Types of Learning

Conditioning and Learning: Classical Conditioning

Conditioning and Learning: Operant Conditioning

Conditioning and Learning: Reinforcement and Punishment

Psychology in Action: Behavioral Self-Management

Memory: Memory Systems

Memory: Forgetting

Memory: Exceptional Memory and Improving Memory

Psychology in Action: Mnemonics

Cognition and Intelligence: Imagery, Concepts, and Language

Cognition and Intelligence: Problem Solving

Cognition and Intelligence: Creative Thinking and Intuition

Cognition and Intelligence: Intelligence

Psychology in Action: Enhancing Creativity

Motivation and Emotion: Overview of Motives and Emotions

Motivation and Emotion: Motivation in Detail

Motivation and Emotion: Emotion in Detail

Psychology in Action: Emotional Intelligence

Human Sexuality: Sexual Development and Orientation

Human Sexuality: Gender Development, Androgyny, and Gender Variance

Human Sexuality: Sexual Behavior, Response, and Attitudes

Psychology in Action: Sexual Problems

Personality: Overview of Personality

Personality: Trait Theories

Personality: Psychoanalytic and Humanistic Theories

Personality: Behavioral and Social Learning Theories

Psychology in Action: Understanding Shyness

Health, Stress, and Coping: Health Psychology

Health, Stress, and Coping: Stress, Frustration, and Conflict

Health, Stress, and Coping: Defenses, Helplessness, and Depression

Health, Stress, and Coping: Stress and Health

Psychology in Action: Stress Management

Psychological Disorders: Normality and Psychopathology