Question 1

Inferential statistics _________.

Accepted Answer

A)  is the same as descriptive statistics 
B)  also uses methods of descriptive statistics 
C)  allows one to make inferences about a sample based on population data 
D)  allows one to make inferences about a population based on sample data 
E)  also uses methods of descriptive statistics and allows one to make inferences about a population based on sample data 
A)  is the same as descriptive statistics 
B)  also uses methods of descriptive statistics 
C)  allows one to make inferences about a sample based on population data 
D)  allows one to make inferences about a population based on sample data 
E)  also uses methods of descriptive statistics and allows one to make inferences about a population based on sample data

Question 2

Descriptive statistics are used to make inferences about the population.

Accepted Answer

A) True 
 B)False

Question 3

Define parameter.

Accepted Answer

A parameter is a special kind of variabl

Question 4

Descriptive statistics are helpful in _________ and _________ raw data.

Accepted Answer

A)  generalizing; inferring 
B)  organizing; tenderizing 
C)  confusing; confounding 
D)  summarizing; characterizing 
A)  generalizing; inferring 
B)  organizing; tenderizing 
C)  confusing; confounding 
D)  summarizing; characterizing

Question 5

Let's assume you are conducting an experiment to determine the effect of a new drug on the incidence of epileptic seizures. You select 20 epileptics from the 150 epileptics being treated at a nearby hospital and administer the drug to them. You record the number of seizures in each of the 20 subjects for one month. The average (mean) number of seizures for the 20 subjects is called _________.

Accepted Answer

A)  the dependent variable 
B)  data 
C)  a statistic 
D)  a parameter 
A)  the dependent variable 
B)  data 
C)  a statistic 
D)  a parameter

Question 6

In order to estimate the average (mean) weight of all professional football players, an investigator determines the weight of the "Dallas Cowboy" players. The average (mean) weight of all professional football players is called a _________.

Accepted Answer

A)  population 
B)  parameter 
C)  sample 
D)  statistic 
A)  population 
B)  parameter 
C)  sample 
D)  statistic

Question 7

The main difference between rationalism and the scientific method is that the scientific method relies on objective assessment to test the idea.

Accepted Answer

A) True 
 B)False

Question 8

A parameter is defined as _________.

Accepted Answer

A)  the score on the dependent variable of a particular subject in the population 
B)  a number calculated on population data that quantifies a characteristic of the population 
C)  a number calculated on sample data that quantifies a characteristic of the sample 
D)  the number of individuals in the population 
A)  the score on the dependent variable of a particular subject in the population 
B)  a number calculated on population data that quantifies a characteristic of the population 
C)  a number calculated on sample data that quantifies a characteristic of the sample 
D)  the number of individuals in the population

Question 9

In order to estimate the height of all students at your university, let's assume you have measured the height of all psychology majors at the university. The average (mean) value of the measured height scores constitutes a _________.

Accepted Answer

A)  population 
B)  sample 
C)  parameter 
D)  statistic 
A)  population 
B)  sample 
C)  parameter 
D)  statistic

Question 10

In order to estimate the average (mean) weight of all professional football players, an investigator determines the weight of the "Dallas Cowboy" players. The Dallas Cowboys are a _________.

Accepted Answer

A)  population 
B)  parameter 
C)  sample 
D)  statistic 
A)  population 
B)  parameter 
C)  sample 
D)  statistic

Question 11

If one measured the height of all the women at a university and took an average of the data, the university women would be a sample of the population of all university women in the world.

Accepted Answer

A) True 
 B)False

Question 12

Which method of knowing is used in the following example? An individual accepts as true that there is an afterlife because a minister asserts such is the case.

Accepted Answer

A)  Method of Authority 
B)  Method of Intuition 
C)  Scientific Method 
D)  Rationalism 
A)  Method of Authority 
B)  Method of Intuition 
C)  Scientific Method 
D)  Rationalism

Question 13

How does natural observation research differ from true experiments?

Accepted Answer

Natural observation research and true ex

Question 14

Data are an indispensable part of scientific method.

Accepted Answer

A) True 
 B)False

Question 15

Pick the best answer from the following statements.

Accepted Answer

A)  The measurements that are made on the subjects of an experiment are called data. 
B)  A statistic is a number calculated on sample data that quantifies a characteristic of the sample. 
C)  A parameter is a number calculated on population data that quantifies a characteristic of the population. 
D)  All of these statements are true. 
A)  The measurements that are made on the subjects of an experiment are called data. 
B)  A statistic is a number calculated on sample data that quantifies a characteristic of the sample. 
C)  A parameter is a number calculated on population data that quantifies a characteristic of the population. 
D)  All of these statements are true.

Question 16

One is able to determine cause and effect from observational studies.

Accepted Answer

A) True 
 B)False

Question 17

From which of the following studies can one most reasonably determine cause and effect?

Accepted Answer

A)  correlational study 
B)  true experiment 
C)  naturalistic observation 
D)  all these 
A)  correlational study 
B)  true experiment 
C)  naturalistic observation 
D)  all these

Question 18

A student hears a lecture on the harmful effects of drug X on intellectual functioning. Based on the international reputation of the lecturer and his lecture, the student concludes that drug X is harmful. What method of inquiry has the student relied upon to learn about drug X ? Discuss.

Accepted Answer

The student has relied upon the method o

Question 19

How often are population parameters known?

Accepted Answer

Population parameters are rarely known w

Question 20

In an experiment, a scientist is interested in the effect of a drug on reaction time. He gives various doses of the drug and then measures blood levels of the drug and reaction time in a driving task. What is the independent variable? The dependent variable?

Accepted Answer

In the described experiment, the indepen

Inferential statistics _________.

Descriptive statistics are used to make inferences about the population.

Define parameter.

Descriptive statistics are helpful in _ and _ raw data.

In order to estimate the average (mean) weight of all professional football players, an investigator determines the weight of the "Dallas Cowboy" players. The average (mean) weight of all professional football players is called a _________.

The main difference between rationalism and the scientific method is that the scientific method relies on objective assessment to test the idea.

A parameter is defined as _________.

In order to estimate the height of all students at your university, let's assume you have measured the height of all psychology majors at the university. The average (mean) value of the measured height scores constitutes a _________.

In order to estimate the average (mean) weight of all professional football players, an investigator determines the weight of the "Dallas Cowboy" players. The Dallas Cowboys are a _________.

If one measured the height of all the women at a university and took an average of the data, the university women would be a sample of the population of all university women in the world.

Which method of knowing is used in the following example? An individual accepts as true that there is an afterlife because a minister asserts such is the case.

How does natural observation research differ from true experiments?

Data are an indispensable part of scientific method.

Pick the best answer from the following statements.

One is able to determine cause and effect from observational studies.

From which of the following studies can one most reasonably determine cause and effect?

A student hears a lecture on the harmful effects of drug X on intellectual functioning. Based on the international reputation of the lecturer and his lecture, the student concludes that drug X is harmful. What method of inquiry has the student relied upon to learn about drug X ? Discuss.

How often are population parameters known?

In an experiment, a scientist is interested in the effect of a drug on reaction time. He gives various doses of the drug and then measures blood levels of the drug and reaction time in a driving task. What is the independent variable? The dependent variable?

Basic Mathematical and Measurement Concepts

Frequency Distributions

Measures of Central Tendency and Variability

The Normal Curve and Standard Scores

Correlation

Linear Regression

Random Sampling and Probability

Binomial Distribution

Introduction to Hypothesis Testing: Using the Sign Test

Power

Sampling Distributions, Sampling Distribution of the Mean: the Normal Deviate Z Test

Students T Test for Single Samples

Students T Test for Correlated and Independent Groups

Introduction to the Analysis of Variance

Introduction to the Two-Way Analysis of Variance

Chi-Square and Other Nonparametric Tests

Filters

Exam 1: Statistics and Scientific Method

Inferential statistics _________.

Descriptive statistics are used to make inferences about the population.

Define parameter.

Descriptive statistics are helpful in _________ and _________ raw data.

In order to estimate the average (mean) weight of all professional football players, an investigator determines the weight of the "Dallas Cowboy" players. The average (mean) weight of all professional football players is called a _________.

The main difference between rationalism and the scientific method is that the scientific method relies on objective assessment to test the idea.

A parameter is defined as _________.

In order to estimate the height of all students at your university, let's assume you have measured the height of all psychology majors at the university. The average (mean) value of the measured height scores constitutes a _________.

In order to estimate the average (mean) weight of all professional football players, an investigator determines the weight of the "Dallas Cowboy" players. The Dallas Cowboys are a _________.

If one measured the height of all the women at a university and took an average of the data, the university women would be a sample of the population of all university women in the world.

Which method of knowing is used in the following example? An individual accepts as true that there is an afterlife because a minister asserts such is the case.

How does natural observation research differ from true experiments?

Data are an indispensable part of scientific method.

Pick the best answer from the following statements.

One is able to determine cause and effect from observational studies.

From which of the following studies can one most reasonably determine cause and effect?

A student hears a lecture on the harmful effects of drug X on intellectual functioning. Based on the international reputation of the lecturer and his lecture, the student concludes that drug X is harmful. What method of inquiry has the student relied upon to learn about drug X ? Discuss.

How often are population parameters known?

In an experiment, a scientist is interested in the effect of a drug on reaction time. He gives various doses of the drug and then measures blood levels of the drug and reaction time in a driving task. What is the independent variable? The dependent variable?

Basic Mathematical and Measurement Concepts

Frequency Distributions

Measures of Central Tendency and Variability

The Normal Curve and Standard Scores

Correlation

Linear Regression

Random Sampling and Probability

Binomial Distribution

Introduction to Hypothesis Testing: Using the Sign Test

Power

Sampling Distributions, Sampling Distribution of the Mean: the Normal Deviate Z Test

Students T Test for Single Samples

Students T Test for Correlated and Independent Groups

Introduction to the Analysis of Variance

Introduction to the Two-Way Analysis of Variance

Chi-Square and Other Nonparametric Tests

Filters

Descriptive statistics are helpful in _ and _ raw data.