Question 1

A research team is examining the effects of stress on emotion regulation. They are particular interested in adolescents in high school, as puberty is a time that where emotions can vacillate quickly.
In this case, what is the population?

Accepted Answer

A)   High school students
B)   Adolescents
C)   Students
D)   Minors A

Question 2

A sample is drawn out of the population

Accepted Answer

A) True 
 B)False  True

Question 3

Experimentation is generally done with samples instead of populations. This is because the sample data can be used to make predictions and estimates about the population

Accepted Answer

A) True 
 B)False  True

Question 4

If a researcher's target population is 7th grade students, they can still draw their sample out of 8th grade to make generalizations about the population

Accepted Answer

A) True 
 B)False

Question 5

Chance errors occur because of experimenter error

Accepted Answer

A) True 
 B)False

Question 6

Which of the following most likely requires the use of inferential statistics?

Accepted Answer

A)   What is the average height of boys in Ms. Simpson's 4th grade class?
B)   How long is the average lifespan of a German Shepherd?
C)   What is the average income of employees at a local supermarket?
D)   In what year did the Cubs most recently win the world series?

Question 7

Which of the following is not a good description statistics?

Accepted Answer

A)   Users of statistics can manipulate their audience with it
B)   Statistics are inherently confusing to audiences, and often misrepresent the truth
C)   The author or user of statistics can present the same information differently, based on how they use statistics.
D)   Statistics can be a powerful tool to aid in making arguments or claims

Question 8

Jennifer reviewed the literature on research related to patients with anxiety disorders in clinical psychology. She designs a study assigning some patients to three different treatments and a control group with no treatment. She then measures anxiety symptoms 2 months after the treatment.
How many levels are there for the independent variable?

Accepted Answer

A)   2
B)   3
C)   4
D)   5

Question 9

A single measurement or observation within a dataset is called data

Accepted Answer

A) True 
 B)False

Question 10

A research team is examining the effects of stress on emotion regulation. They are particular interested in adolescents in high school, as puberty is a time that where emotions can vacillate quickly.
What is the dependent variable of this study?

Accepted Answer

A)   stress
B)   stress and emotion regulation
C)   emotion regulation
D)   there is no dependent variable

Question 11

In a study examining two different amounts of drug dosage on an particular outcome variable, the independent variable has two levels

Accepted Answer

A) True 
 B)False

Question 12

The origins of word statistics were "predict numbers"

Accepted Answer

A) True 
 B)False

Question 13

When collecting data from the population to draw a sample, you are forming a…

Accepted Answer

A)   dataset
B)   Descriptive statistic
C)   Inferential statistic
D)   parameter

Question 14

In experimentation researchers manipulate the ___________ and examine its effects on the _______________

Accepted Answer

A)   dependent variable; independent variable
B)   extraneous variable; dependent variable
C)   independent variable; dependent variable
D)   independent variable; control variable.

Question 15

The purpose of descriptive statistics characterize data and summarize the data into smaller pieces of information

Accepted Answer

A) True 
 B)False

Question 16

What is an extraneous variable?

Accepted Answer

A)   The outcome variable
B)   It is the target variable. This means it is not uncontrolled and the variable that the research is most interested in.
C)   A variable included in the research to minimize chance errors.
D)   It is a variable that can influence the target variable, but part of the researcher's intent

Question 17

The most frequently occurring observation in a sample can be thought of as a…

Accepted Answer

A)   typical observation
B)   parameter
C)   extraneous variable
D)   inferential statistic

Question 18

Exposure to sunlight can affect our emotions, but to what extent? A researcher is interested in this question and exposes participants to a certain amount of sunlight individuals are exposed to for a week. Then he reduces the sunlight exposure and examines how individuals' emotions change. Identify the IV, DV< and type of design the researcher uses.

Accepted Answer

The answer of Exposure to sunlight can affect our emotions,...

Question 19

A researcher is conducting a large-scale study, focusing on the effects of an educational intervention on children's reading ability in schools. Half of the classrooms in a school district were assigned this intervention, and the other half were not. Identify the independent variable, dependent variable, and a potential extraneous variable. Explain why the results may or may not be generalizable.

Accepted Answer

The answer of A researcher is conducting a large-scale study,...

Question 20

Jennifer reviewed the literature on research related to patients with anxiety disorders in clinical psychology. She designs a study assigning some patients to three different treatments and a control group with no treatment. She then measures anxiety symptoms 2 months after the treatment.
Jennifer conducts her study and claims that one particular treatment is helpful to patients who suffer from anxiety disorder. Which of the following assumptions is she making?

Accepted Answer

A)   Her sample is representative of the population of individuals who suffer from anxiety
B)   Her sample is representative to the society at large
C)   Her study was influenced by an extraneous variable
D)   Her parameters were good estimates of the statistics.

Exam 1: Introduction: Statistics--Who Needs Them

A research team is examining the effects of stress on emotion regulation. They are particular interested in adolescents in high school, as puberty is a time that where emotions can vacillate quickly. In this case, what is the population?

A sample is drawn out of the population

Experimentation is generally done with samples instead of populations. This is because the sample data can be used to make predictions and estimates about the population

If a researcher's target population is 7^th grade students, they can still draw their sample out of 8^th grade to make generalizations about the population

Chance errors occur because of experimenter error

Which of the following most likely requires the use of inferential statistics?

Which of the following is not a good description statistics?

A single measurement or observation within a dataset is called data

A research team is examining the effects of stress on emotion regulation. They are particular interested in adolescents in high school, as puberty is a time that where emotions can vacillate quickly. What is the dependent variable of this study?

In a study examining two different amounts of drug dosage on an particular outcome variable, the independent variable has two levels

The origins of word statistics were "predict numbers"

When collecting data from the population to draw a sample, you are forming a…

In experimentation researchers manipulate the _ and examine its effects on the _____

The purpose of descriptive statistics characterize data and summarize the data into smaller pieces of information

What is an extraneous variable?

The most frequently occurring observation in a sample can be thought of as a…