Question 1

_____ involves the use of numerical indices to describe either a population or a sample.

Accepted Answer

A) descriptive statistics 
B) inferential statistics 
C) parametric statistics 
D) all of these 
A) descriptive statistics 
B) inferential statistics 
C) parametric statistics 
D) all of these

Question 2

Dr.Johns is studying the effects of caffeine on memory.After comparing the subjects taking a placebo with those taking caffeine pills he concludes that caffeine enhances memory.He most likely used _____ to determine the difference between groups.

Accepted Answer

A) descriptive statistics 
B) inferential statistics 
C) probabilities of test scores 
D) none of these 
A) descriptive statistics 
B) inferential statistics 
C) probabilities of test scores 
D) none of these

Question 3

The entire population is considered a _____ but a sample of the population is a _____.

Accepted Answer

A) parameter: statistic 
B) statistic;parameter 
C) sample: random 
D) both a & c 
A) parameter: statistic 
B) statistic;parameter 
C) sample: random 
D) both a & c

Question 4

The upper real limit of the number 17.5 is

Accepted Answer

A) 18 
B) 17.75 
C) 17.55 
D) 17.45 
A) 18 
B) 17.75 
C) 17.55 
D) 17.45

Question 5

Melissa just read the back of her hand sanitizer which says it kills 99.99% of all germs.What is the probability that it will not kill a particular germ?

Accepted Answer

A) 1.00 
B) .10 
C) .01 
D) 0 
A) 1.00 
B) .10 
C) .01 
D) 0

Question 6

10.345 rounded to two decimals is 10.34.

Accepted Answer

A) True 
 B)False

Question 7

The essential characteristic of random sampling is that every member of the population has an equal chance of being selected for the sample.

Accepted Answer

A) True 
 B)False

Question 8

On the basis of observing the _____,the researcher makes generalizations to the _____.

Accepted Answer

A) population;sample 
B) sample;population 
C) subjects;variables 
D) statistics;sample 
A) population;sample 
B) sample;population 
C) subjects;variables 
D) statistics;sample

Question 9

The true population that may be infinite is considered a _____ variable.

Accepted Answer

A) continuous 
B) discrete 
C) theoretical 
D) both continuous and theoretical 
E) both discrete and theoretical 
A) continuous 
B) discrete 
C) theoretical 
D) both continuous and theoretical 
E) both discrete and theoretical

Question 10

In a truly random sample from the population

Accepted Answer

A) all subjects are matched on important characteristics 
B) all members of the population have an equal chance of being selected 
C) gender distribution should be 50% male 50% female 
D) All of these 
E) None of these 
A) all subjects are matched on important characteristics 
B) all members of the population have an equal chance of being selected 
C) gender distribution should be 50% male 50% female 
D) All of these 
E) None of these

Question 11

Jack puts 4 cards in front of you,an Ace,Queen,King and Jack of hearts.What is the probability that you will pick the Ace of hearts?

Accepted Answer

A) 1/4 
B) .25 
C) 1/52 
D) Both a & b 
E) All of these are possible 
A) 1/4 
B) .25 
C) 1/52 
D) Both a & b 
E) All of these are possible

Question 12

Given the following data for X and Y variables,calculate ÓX + ÓY

Accepted Answer

A) -11 
B) 13 
C) 16 
D) 14 
A) -11 
B) 13 
C) 16 
D) 14

Question 13

In scientific research,the independent variable is the effect and the dependent variable is the cause.

Accepted Answer

A) True 
 B)False

Question 14

A measure has as its referent:

Accepted Answer

A) an individual on whom the measure is taken 
B) a time at which the measure is taken 
C) a setting in which the measure is taken 
D) all of these 
A) an individual on whom the measure is taken 
B) a time at which the measure is taken 
C) a setting in which the measure is taken 
D) all of these

Question 15

Numerical indices derived from population data are ___;numerical indices derived from sample data are ____.

Accepted Answer

A) parameters;parameters 
B) statistics;statistics 
C) statistics;parameters 
D) parameters;statistics 
A) parameters;parameters 
B) statistics;statistics 
C) statistics;parameters 
D) parameters;statistics

Question 16

A given probability must always range from 0 to 1.00.

Accepted Answer

A) True 
 B)False

Question 17

Describe the relationship between random sampling and representative samples.

Accepted Answer

The essential characteristic of random s

Question 18

A given probability must always range from:

Accepted Answer

A) 0 to 1.00 
B) 0 to 100.00 
C) -1.0 to +1.0 
D) none of the above 
A) 0 to 1.00 
B) 0 to 100.00 
C) -1.0 to +1.0 
D) none of the above

Question 19

Most behavioral science research is concerned with constants.

Accepted Answer

A) True 
 B)False

Question 20

Intelligence is an example of a continuous variable.

Accepted Answer

A) True 
 B)False

_____ involves the use of numerical indices to describe either a population or a sample.

Dr.Johns is studying the effects of caffeine on memory.After comparing the subjects taking a placebo with those taking caffeine pills he concludes that caffeine enhances memory.He most likely used _____ to determine the difference between groups.

The entire population is considered a _ but a sample of the population is a _.

The upper real limit of the number 17.5 is

Melissa just read the back of her hand sanitizer which says it kills 99.99% of all germs.What is the probability that it will not kill a particular germ?

10.345 rounded to two decimals is 10.34.

The essential characteristic of random sampling is that every member of the population has an equal chance of being selected for the sample.

On the basis of observing the _,the researcher makes generalizations to the _.

The true population that may be infinite is considered a _____ variable.

In a truly random sample from the population

Jack puts 4 cards in front of you,an Ace,Queen,King and Jack of hearts.What is the probability that you will pick the Ace of hearts?

Given the following data for X and Y variables,calculate ÓX + ÓY

In scientific research,the independent variable is the effect and the dependent variable is the cause.

A measure has as its referent:

Numerical indices derived from population data are _;numerical indices derived from sample data are __.

A given probability must always range from 0 to 1.00.

Describe the relationship between random sampling and representative samples.

A given probability must always range from:

Most behavioral science research is concerned with constants.

Intelligence is an example of a continuous variable.

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 1: Introduction and Mathematical Preliminaries

_____ involves the use of numerical indices to describe either a population or a sample.

Dr.Johns is studying the effects of caffeine on memory.After comparing the subjects taking a placebo with those taking caffeine pills he concludes that caffeine enhances memory.He most likely used _____ to determine the difference between groups.

The entire population is considered a _____ but a sample of the population is a _____.

The upper real limit of the number 17.5 is

Melissa just read the back of her hand sanitizer which says it kills 99.99% of all germs.What is the probability that it will not kill a particular germ?

10.345 rounded to two decimals is 10.34.

The essential characteristic of random sampling is that every member of the population has an equal chance of being selected for the sample.

On the basis of observing the _____,the researcher makes generalizations to the _____.

The true population that may be infinite is considered a _____ variable.

In a truly random sample from the population

Jack puts 4 cards in front of you,an Ace,Queen,King and Jack of hearts.What is the probability that you will pick the Ace of hearts?

Given the following data for X and Y variables,calculate ÓX + ÓY

In scientific research,the independent variable is the effect and the dependent variable is the cause.

A measure has as its referent:

Numerical indices derived from population data are ___;numerical indices derived from sample data are ____.

A given probability must always range from 0 to 1.00.

Describe the relationship between random sampling and representative samples.

A given probability must always range from:

Most behavioral science research is concerned with constants.

Intelligence is an example of a continuous variable.

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

The entire population is considered a _ but a sample of the population is a _.

On the basis of observing the _,the researcher makes generalizations to the _.

Numerical indices derived from population data are _;numerical indices derived from sample data are __.