Question 1

A Psychologist's who is studying the effects of home environment on aggression needs to _____before conducting his/her experiment.

Accepted Answer

A) have a control group 
B) operationally define terms (aggression) 
C) state his/her hypothesis 
D) None of these 
E) All of these 
A) have a control group 
B) operationally define terms (aggression) 
C) state his/her hypothesis 
D) None of these 
E) All of these

Question 2

Most behavioral science research is concerned with constants.

Accepted Answer

A) True 
 B)False

Question 3

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 4

The determination of whether a variable is measured on an ordinal,interval,or ratio level is usually a straightforward matter in the behavioral sciences.

Accepted Answer

A) True 
 B)False

Question 5

10.345 rounded to two decimals is 10.34.

Accepted Answer

A) True 
 B)False

Question 6

Distinguish between discrete and continuous variables.

Accepted Answer

Variables that can assume only a finite

Question 7

_____ is the procedure in which every member of the population has an equal chance of being selected for the sample.

Accepted Answer

A) Biased sampling 
B) Representative sampling 
C) Simple random sampling 
D) Population sampling 
A) Biased sampling 
B) Representative sampling 
C) Simple random sampling 
D) Population sampling

Question 8

A researcher studies the relationship between the amount of time spent studying for an exam and the number of errors made.A sample of twenty students who have the same GPA are randomly assigned to one of four groups: 1,2,3,or 4 hours of study time.After studying the specified time,all students took an identical exam and the number of errors each student made was counted.
The independent variable in the above study is:

Accepted Answer

A) number of errors made 
B) GPA of the students 
C) number of hours studied 
D) number of students in each group 
A) number of errors made 
B) GPA of the students 
C) number of hours studied 
D) number of students in each group

Question 9

Inferential statistics are used to describe a data set only.

Accepted Answer

A) True 
 B)False

Question 10

A measure has as its referent only a particular scale.

Accepted Answer

A) True 
 B)False

Question 11

Calculate the  
  in which x is the number of words recalled 2,3,4.

Accepted Answer

A) 29 
B) 9 
C) 18 
D) 81 
A) 29 
B) 9 
C) 18 
D) 81

Question 12

Scientific research is best conceptualized as a body of knowledge about some phenomenon.

Accepted Answer

A) True 
 B)False

Question 13

Variables measured on ordinal,interval,or ratio levels are known as _____ variables,while variables measured on a nominal level are called _____ variables.

Accepted Answer

A) quantitative;qualitative 
B) qualitative;quantitative 
C) independent;dependent 
D) random;systematic 
A) quantitative;qualitative 
B) qualitative;quantitative 
C) independent;dependent 
D) random;systematic

Question 14

It is necessary for a variable to be manipulated in order for it to be conceptualized as an independent variable.

Accepted Answer

A) True 
 B)False

Question 15

Distinguish between an independent variable and a dependent variable.

Accepted Answer

The independent variable is as

Question 16

The concept of probabilities is important to statistics especially_____.

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 17

A nonrandom sample of the population may lead to bias results.

Accepted Answer

A) True 
 B)False

Question 18

The real limits of a number are those points falling one measurement unit above and one measurement unit below that number.

Accepted Answer

A) True 
 B)False

Question 19

A hypothesis involves drawing a conclusion and thinking about the implications of the investigation for future research.

Accepted Answer

A) True 
 B)False

Question 20

The number of people who attend an anxiety clinic is an example of a discrete variable.

Accepted Answer

A) True 
 B)False

A Psychologist's who is studying the effects of home environment on aggression needs to _____before conducting his/her experiment.

Most behavioral science research is concerned with constants.

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

The determination of whether a variable is measured on an ordinal,interval,or ratio level is usually a straightforward matter in the behavioral sciences.

10.345 rounded to two decimals is 10.34.

Distinguish between discrete and continuous variables.

_____ is the procedure in which every member of the population has an equal chance of being selected for the sample.

Inferential statistics are used to describe a data set only.

A measure has as its referent only a particular scale.

Calculate the in which x is the number of words recalled 2,3,4.

Scientific research is best conceptualized as a body of knowledge about some phenomenon.

Variables measured on ordinal,interval,or ratio levels are known as _ variables,while variables measured on a nominal level are called _ variables.

It is necessary for a variable to be manipulated in order for it to be conceptualized as an independent variable.

Distinguish between an independent variable and a dependent variable.

The concept of probabilities is important to statistics especially_____.

A nonrandom sample of the population may lead to bias results.

The real limits of a number are those points falling one measurement unit above and one measurement unit below that number.

A hypothesis involves drawing a conclusion and thinking about the implications of the investigation for future research.

The number of people who attend an anxiety clinic is an example of a discrete variable.

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

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

A Psychologist's who is studying the effects of home environment on aggression needs to _____before conducting his/her experiment.

Most behavioral science research is concerned with constants.

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

The determination of whether a variable is measured on an ordinal,interval,or ratio level is usually a straightforward matter in the behavioral sciences.

10.345 rounded to two decimals is 10.34.

Distinguish between discrete and continuous variables.

_____ is the procedure in which every member of the population has an equal chance of being selected for the sample.

Inferential statistics are used to describe a data set only.

A measure has as its referent only a particular scale.

Calculate the in which x is the number of words recalled 2,3,4.

Scientific research is best conceptualized as a body of knowledge about some phenomenon.

Variables measured on ordinal,interval,or ratio levels are known as _____ variables,while variables measured on a nominal level are called _____ variables.

It is necessary for a variable to be manipulated in order for it to be conceptualized as an independent variable.

Distinguish between an independent variable and a dependent variable.

The concept of probabilities is important to statistics especially_____.

A nonrandom sample of the population may lead to bias results.

The real limits of a number are those points falling one measurement unit above and one measurement unit below that number.

A hypothesis involves drawing a conclusion and thinking about the implications of the investigation for future research.

The number of people who attend an anxiety clinic is an example of a discrete variable.

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

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

Variables measured on ordinal,interval,or ratio levels are known as _ variables,while variables measured on a nominal level are called _ variables.