Question 1

In an experiment conducted to determine the effect of testosterone on aggression, testosterone is the independent variable.

Accepted Answer

A) True 
 B)False

Question 2

A sample is defined as _________.

Accepted Answer

A)  the subjects in an experiment 
B)  the complete set of individuals, objects, or scores that the investigator is interested in studying 
C)  a subset of the population 
D)  the subjects in an experiment and a subset of the population 
E)  the subjects in an experiment and the complete set of individuals, objects, or scores that the investigator is interested in studying

Question 3

For a list of sample data the lowest and highest score values are examples of _________ statistics.

Accepted Answer

A)  inferential 
B)  sample 
C)  population 
D)  descriptive

Question 4

In a study of caloric intake on weight loss, the number of pounds lost (or gained) is the independent variable.

Accepted Answer

A) True 
 B)False

Question 5

A scientist takes a random sample of 50 citizens in a city and asks them their age. The scientist then calculates the average age and uses that as an estimate of the average age of all the citizens in the city. What is this process called?

Accepted Answer

The answer of A scientist takes a random sample of...

Question 6

The dependent variable in an experiment is defined or identified as _________.

Accepted Answer

A)  the variable the experimenter measures to determine if there is a real effect 
B)  the variable that is systematically manipulated by the experimenter 
C)  "IQ", in an experiment studying the effect of Early Education on IQ 
D)  "Early Education", in an experiment studying the effect of Early education on IQ 
E)  a and c

Question 7

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

Accepted Answer

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

Question 8

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 resulting raw scores are called _________.

Accepted Answer

A)  constants 
B)  data 
C)  coefficients 
D)  statistics

Question 9

Mathematical methods used to draw tentative conclusions about a population based on sample data are referred to as _________.

Accepted Answer

A)  descriptive statistics 
B)  sample statistics 
C)  inferential statistics 
D)  random sampling

Question 10

A statistic is to a sample as a parameter is to a population.

Accepted Answer

A) True 
 B)False

Question 11

Define data.

Accepted Answer

The answer of Define data....

Question 12

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 the Dallas Cowboys is called a _________.

Accepted Answer

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

Question 13

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

Accepted Answer

A)  independent variable 
B)  constant 
C)  statistic 
D)  dependent variable

Question 14

True experiments involve the manipulation of variables by the investigator.

Accepted Answer

A) True 
 B)False

Question 15

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 new drug is an example of a(n) _________.

Accepted Answer

A)  dependent variable 
B)  constant 
C)  statistic 
D)  independent variable

Question 16

A statistic is defined as _________.

Accepted Answer

A)  the score on the dependent variable of a particular subject in the sample 
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 subjects in the sample

Question 17

When data has not yet been analyzed, this is called raw data.

Accepted Answer

A) True 
 B)False

Question 18

Consider yourself and describe 3 populations to which you belong?

Accepted Answer

The answer of Consider yourself and describe 3 populations to...

Question 19

In order to estimate the attention level of college undergraduates in the United States, a psychologist measures the attention span of the undergraduates at a local university. The mean of these scores is a _________.

Accepted Answer

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

Question 20

In observational studies the researcher manipulates the experiment and observes the results closely.

Accepted Answer

A) True 
 B)False

Exam 1: Statistics and Scientific Method

In an experiment conducted to determine the effect of testosterone on aggression, testosterone is the independent variable.

A sample is defined as _________.

For a list of sample data the lowest and highest score values are examples of _________ statistics.

In a study of caloric intake on weight loss, the number of pounds lost (or gained) is the independent variable.

A scientist takes a random sample of 50 citizens in a city and asks them their age. The scientist then calculates the average age and uses that as an estimate of the average age of all the citizens in the city. What is this process called?

The dependent variable in an experiment is defined or identified as _________.

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

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 resulting raw scores are called _________.

Mathematical methods used to draw tentative conclusions about a population based on sample data are referred to as _________.

A statistic is to a sample as a parameter is to a population.

Define 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 the Dallas Cowboys is called a _________.

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

True experiments involve the manipulation of variables by the investigator.

A statistic is defined as _________.

When data has not yet been analyzed, this is called raw data.

Consider yourself and describe 3 populations to which you belong?

In order to estimate the attention level of college undergraduates in the United States, a psychologist measures the attention span of the undergraduates at a local university. The mean of these scores is a _________.

In observational studies the researcher manipulates the experiment and observes the results closely.