Question 1

Studies show that there is a positive correlation between the number of cute names (e.g. ,"Snookums" and "Pookie")couples have for each other and their self-reported feelings of love.This research tells me that:

Accepted Answer

The research indicates a positive correlation, meaning that as the number of cute names increases, self-reported feelings of love also increase.

Question 2

Which of the following methods is the best method to determine cause and effect?

Accepted Answer

The experimental method is considered the best method to determine cause and effect because it involves manipulating an independent variable while holding all other variables constant and then observing the effect on a dependent variable. This method allows researchers to establish a cause-and-effect relationship between variables. Naturalistic observation methods (options A and B) do not involve manipulation of variables, and therefore cannot establish cause and effect. The correlational method (option D) can only establish a relationship between variables, but cannot determine cause and effect.

Question 3

In an experiment,the researcher manipulates the __________ variable and measures its effects on the __________ variable.

Accepted Answer

The independent variable is the variable that is being manipulated by the researcher, while the dependent variable is the variable being measured for its effects. Therefore, option B (independent variable; dependent variable) is the correct answer. Option A (dependent variable; independent variable) is incorrect because it contradicts the correct relationship between the two variables. Option C (operational variable; dependent variable) is incorrect because the operational variable is a specific way of measuring or defining a variable, not the variable itself. Option D (independent variable; operational variable) is incorrect because it confuses the manipulation of the variable with the way it is measured.

Question 4

Which of the following statements is TRUE?

Accepted Answer

Correlation refers to a relationship between two variables, but it does not necessarily imply causation between them. Correlation may suggest a cause-and-effect relationship, but further research is required to confirm or refute causal links. Therefore, statement B is considered to be true.

Question 5

A researcher is interested in the effect of exercise on stamina in elderly patients.The patients are randomly assigned to be in a high-exercise or low-exercise training program for 8 weeks.At the end of the program,their stamina is measured by seeing how long they can walk comfortably on a treadmill.In this study,the dependent variable is:

Accepted Answer

The dependent variable is the variable that is being measured or tested in order to determine the effect of the independent variable, which is the variable that is being manipulated by the researcher. In this case, the independent variable is the exercise program (high versus low) and the dependent variable is the patients' stamina, which is measured by the number of minutes they can walk comfortably on the treadmill. Therefore, the best choice is A, number of minutes spent comfortably on the treadmill.

Question 6

To chart the development of intelligence over the life span,researchers spent 1 year testing the intelligence of individuals ranging in age period from childhood to old age.Which approach to the time span of inquiry would they be taking?

Accepted Answer

The cross-sectional approach involves studying different age groups at one point in time, which matches the description of testing individuals of various ages over a single year.

Question 7

Travis has designed a study to compare the muscle coordination of 60-year-olds,70-year-olds,and 80-year-olds.What research design did he use?

Accepted Answer

Travis is comparing individuals from different age groups at one point in time, which is the design of a cross-sectional study. A longitudinal study would follow the same individuals over time, a sequential study combines both longitudinal and cross-sectional approaches, and a cohort study would involve observing a group of individuals who share a particular characteristic (such as age) over a period of time.

Question 8

Which of the following is NOT a drawback to longitudinal research?

Accepted Answer

The answer of Which of the following is NOT a...

Question 9

If you studied the attitudes of elderly people today,you might find that most believe it is better for women to stay at home than to work.This is their attitude,probably because these people grew up during the early and middle part of the twentieth century rather than because they are elderly per se.This is an example of a(n)__________ effect.

Accepted Answer

This effect is known as the cohort effect, which refers to the influence of shared characteristics of a group of people who were born and grew up at a particular time and place. In this case, the elderly people's belief about women staying at home is shaped by the cultural norms and expectations of the time in which they were raised, rather than their age.

Question 10

Most students take the ACT or the SAT before they enter college.These tests are examples of __________ measures.

Accepted Answer

The ACT and SAT are standardized tests, meaning that they are given under uniform conditions and scored in a consistent manner. This allows for comparisons to be made between students and provides a common metric for college admissions. A case study involves an in-depth analysis of a single individual or group, whereas a naturalistic observation involves observing behaviors as they occur in a natural setting. Physiological measures would involve assessing biological or physiological variables such as heart rate or brain activity.

Question 11

The difference between a control group and an experimental group is that the:

Accepted Answer

A control group is used as a baseline comparison and does not receive the independent variable (the factor being tested), while the experimental group does receive the independent variable to measure its effects. Option B is incorrect because both the control and experimental groups have similarities, such as demographics or initial conditions. Option C and D are incorrect because neither group is dependent on each other; they both serve separate and distinct purposes in a scientific study.

Question 12

In an experimental study,this group receives the treatment (independent variable).

Accepted Answer

In an experimental study, the group that receives the treatment is the experimental group. They are compared to the control group, which does not receive the treatment. The dependent variable is the outcome being measured in both groups. The independent variable is the variable being manipulated or controlled by the researcher. There is no such thing as a dependent or independent group in experimental studies.

Question 13

Which of the following is a criticism of standardized tests mentioned by your author?

Accepted Answer

The answer of Which of the following is a criticism...

Question 14

Professor Offord wants to assign subjects to experimental groups in such a way that each subject has an equal chance of being in any group.The best way to assign subjects is:

Accepted Answer

The best way to assign subjects to experimental groups in a way that ensures equal chances of being in any group is through random assignment. This eliminates any bias or systematic error that might be introduced by subjectively assigning them. Systematic assignment may also introduce some structure or pattern that could affect the results. Therefore, random assignment is the best option.

Question 15

In a cross-sectional study,individuals of __________ age groups are compared at one time.

Accepted Answer

In a cross-sectional study, individuals of different age groups are compared at one time. This is different from a longitudinal study, where the same group of individuals is followed over a period of time.

Question 16

Which of the following is the quickest way to gain information from a large amount of people?

Accepted Answer

A survey is the quickest way to gain information from a large amount of people. Surveys can be conducted online, over the phone, or in-person and can reach a large number of people in a short amount of time. Experiments, tests, and observations typically involve smaller groups of people and take more time and resources to conduct.

Question 17

Which of the following research methods looks at one person in depth and generally over a long period of time?

Accepted Answer

A case study is a research method that looks at one person or group in depth, generally over a long period of time. It is often used in social sciences and can provide detailed and comprehensive information about a specific individual or situation. Interviews and surveys are methods that can be used within a case study, but they do not necessarily constitute a case study on their own. Experiments involve manipulating variables and testing hypotheses, which is not the same as studying a particular individual in depth.

Question 18

A(n)__________ is a group of people who are born at a similar time in history and share similar experiences.

Accepted Answer

A cohort is a group of people who share a common characteristic or experience, such as being born during a similar time period. An independent group is a group that is not influenced by other factors in an experiment, while a dependent group is a group that is influenced by other variables. An experimental group is a group that receives a treatment or intervention in an experiment. None of these options accurately describe a group of people born at a similar time in history.

Question 19

Which of the following is a weakness of the survey method of research?

Accepted Answer

People may feel uncomfortable or embarrassed to share their true thoughts or behaviors, so they may provide socially acceptable or desirable answers, leading to response bias. This is a weakness of the survey method as it can affect the accuracy and reliability of the data collected.

Question 20

The longitudinal method of research consists of:

Accepted Answer

The longitudinal method involves studying the same individuals or group of individuals over a period of time. This allows for the observation of changes and development over time, which cannot be captured in a snapshot approach or cross-sectional study.

Quiz 1: Introduction-Quiz

Studies show that there is a positive correlation between the number of cute names (e.g. ,"Snookums" and "Pookie") couples have for each other and their self-reported feelings of love.This research tells me that: