Question 1

Scientific studies within a single ethnic population

Accepted Answer

A)  demonstrate cause and effect for that population only. 
B)  may miss correlations in other ethnicities. 
C)  are usually done to determine cause and effect for all populations. 
D)  can be extrapolated to other ethnicities. 
E)  show links between multi-variables in that population. 
A)  demonstrate cause and effect for that population only. 
B)  may miss correlations in other ethnicities. 
C)  are usually done to determine cause and effect for all populations. 
D)  can be extrapolated to other ethnicities. 
E)  show links between multi-variables in that population.

Question 2

You are reviewing the results of five similar experiments,but each had a different sample size.Which of the following experiments has the most reliable results?

Accepted Answer

A)  the experiment with a sample size of 10 
B)  the experiment with a sample size of 100 
C)  the experiment with a sample size of 1000 
D)  the experiment with a sample size of 10,000 
E)  the experiment with a sample size of 100,000 
A)  the experiment with a sample size of 10 
B)  the experiment with a sample size of 100 
C)  the experiment with a sample size of 1000 
D)  the experiment with a sample size of 10,000 
E)  the experiment with a sample size of 100,000

Question 3

Why can't science answer questions about the existence of a supernatural being?

Accepted Answer

Science requires a hypothesis

Question 4

You have two experiments to review.One looks at 1000 of the 1,000,000 rabbits in an area.The other study looks at 100 of the 100,000 wolves in an area.Is one study more statistically accurate than the other? Why or why not?

Accepted Answer

Neither,they both lo

Question 5

In a clinical trial with 400 subjects,the most reliable results would be obtained if ____subjects were in the experimental group and ____in the control.

Accepted Answer

A)  200; 200 
B)  300; 100 
C)  100; 300 
D)  350; 50 
E)  50; 350 
A)  200; 200 
B)  300; 100 
C)  100; 300 
D)  350; 50 
E)  50; 350

Question 6

An experiment was performed using 1000 non-smoking males ages 18 to 22.Which of the following experimental groups would most likely produce the most similar results?

Accepted Answer

A)  800 non-smoking females ages 30 to 45 
B)  800 smoking males ages 30 to 45 
C)  1000 smoking females ages 25 to 40 
D)  1000 non-smoking males ages 30 to 55 
E)  800 non-smoking males ages 20 to 25 
A)  800 non-smoking females ages 30 to 45 
B)  800 smoking males ages 30 to 45 
C)  1000 smoking females ages 25 to 40 
D)  1000 non-smoking males ages 30 to 55 
E)  800 non-smoking males ages 20 to 25

Question 7

A positive correlation in a scientific study means

Accepted Answer

A)  both variables increase proportionately. 
B)  one variable is linked to another variable. 
C)  one variable increases while the other decreases. 
D)  there is a link between the variables studied. 
E)  both variables decrease proportionately. 
A)  both variables increase proportionately. 
B)  one variable is linked to another variable. 
C)  one variable increases while the other decreases. 
D)  there is a link between the variables studied. 
E)  both variables decrease proportionately.

Question 8

A hypothesis is often called an educated guess.Why is it a guess and why is it educated?

Accepted Answer

It is a guess because it is a possible a

Question 9

All of the following are true of side effects EXCEPT

Accepted Answer

A)  side effects may make data interpretation difficult. 
B)  side effects are unintended results. 
C)  side effects are usually considered problematic. 
D)  side effects always invalidate the results of the study. 
E)  side effects may vary from person to person. 
A)  side effects may make data interpretation difficult. 
B)  side effects are unintended results. 
C)  side effects are usually considered problematic. 
D)  side effects always invalidate the results of the study. 
E)  side effects may vary from person to person.

Question 10

What are the steps used in the process of a scientific study?

Accepted Answer

A)  making initial observations that generate questions, studying the literature, generating hypotheses that are both testable and falsifiable, testing the hypothesis with experiments and analyzing the data, and making conclusions that are supported by data 
B)  generating hypotheses, conducting experiments, researching literature, making conclusions supported by the literature, and analyzing data 
C)  making initial observations that generate questions, generating hypotheses, studying the literature, conducting experiments based on literature, and making conclusions supported by data 
D)  generating hypotheses based on published literature, testing hypotheses, and making conclusions supported by data 
E)  None of the above. 
A)  making initial observations that generate questions, studying the literature, generating hypotheses that are both testable and falsifiable, testing the hypothesis with experiments and analyzing the data, and making conclusions that are supported by data 
B)  generating hypotheses, conducting experiments, researching literature, making conclusions supported by the literature, and analyzing data 
C)  making initial observations that generate questions, generating hypotheses, studying the literature, conducting experiments based on literature, and making conclusions supported by data 
D)  generating hypotheses based on published literature, testing hypotheses, and making conclusions supported by data 
E)  None of the above.

Question 11

Some of the issues faced by media personnel when reporting the latest scientific findings include all of the following EXCEPT

Accepted Answer

A)  simplifying complex issues. 
B)  conveying information clearly. 
C)  avoiding misunderstandings. 
D)  determining what is most important about a study. 
E)  communicating the researcher's opinion about the study. 
A)  simplifying complex issues. 
B)  conveying information clearly. 
C)  avoiding misunderstandings. 
D)  determining what is most important about a study. 
E)  communicating the researcher's opinion about the study.

Question 12

Increasing sample size increases

Accepted Answer

A)  the control group. 
B)  the experimental group. 
C)  randomness. 
D)  reliability of data. 
E)  variation. 
A)  the control group. 
B)  the experimental group. 
C)  randomness. 
D)  reliability of data. 
E)  variation.

Question 13

A positive correlation on a memory test and drinking coffee would show

Accepted Answer

A)  decreasing coffee consumption correlates with increasing memory test score. 
B)  increasing coffee consumption correlates with increasing memory test score. 
C)  decreasing coffee consumption has no relationship to memory test score. 
D)  increasing coffee consumption correlates with decreasing memory test score. 
E)  no change on memory test score with or without coffee. 
A)  decreasing coffee consumption correlates with increasing memory test score. 
B)  increasing coffee consumption correlates with increasing memory test score. 
C)  decreasing coffee consumption has no relationship to memory test score. 
D)  increasing coffee consumption correlates with decreasing memory test score. 
E)  no change on memory test score with or without coffee.

Question 14

In a controlled experiment,the control and experimental groups differ in the

Accepted Answer

A)  environmental variable. 
B)  controlled variable. 
C)  independent variable. 
D)  dependent variable. 
E)  result. 
A)  environmental variable. 
B)  controlled variable. 
C)  independent variable. 
D)  dependent variable. 
E)  result.

Question 15

Based on Infographic 1.7,which statement is TRUE?

Accepted Answer

A)  Parkinson's disease is caused by drinking too much coffee. 
B)  Parkinson's disease is reduced by drinking coffee. 
C)  Japanese male coffee drinkers have a lower incidence of Parkinson's disease than Japanese males who do not drink coffee. 
D)  Japanese coffee drinkers have a lower incidence of Parkinson's disease than Japanese who do not drink coffee. 
E)  There is no link between caffeine and Parkinson's disease. 
A)  Parkinson's disease is caused by drinking too much coffee. 
B)  Parkinson's disease is reduced by drinking coffee. 
C)  Japanese male coffee drinkers have a lower incidence of Parkinson's disease than Japanese males who do not drink coffee. 
D)  Japanese coffee drinkers have a lower incidence of Parkinson's disease than Japanese who do not drink coffee. 
E)  There is no link between caffeine and Parkinson's disease.

Question 16

Differentiate between a simple correlation and causation.

Accepted Answer

A correlation is a link between two fact

Question 17

A study is conducted to see if walking reduces joint stiffness in people suffering from arthritis of the knee.Half the participants are instructed to walk an additional 1 mile every day,while the other half are told to go about their normal daily routine with no additional exercise.In this study,the group that walks an extra mile every day is referred to as the

Accepted Answer

A)  control group. 
B)  experimental group. 
C)  placebo group. 
D)  dependent group. 
E)  independent group. 
A)  control group. 
B)  experimental group. 
C)  placebo group. 
D)  dependent group. 
E)  independent group.

Question 18

Numerous studies have shown that the more often a person performs a workout routine that increases heart rate,the better their overall heart health is.You have two groups of individuals who are willing to participate in a heart-health experiment.Fifty are non-smoking males,ages 18 to 22,who work out three times per week.Fifty are non-smoking males,ages 18 to 22,who do not work out on a regular basis.In the experiment,they will step up and down on an 8-inch-high cinder block 120 times/minute for 3 minutes.Researchers will examine their heart rate before starting,immediately after they finish,and every minute after finishing until their heart rate returns to their original rate.Two common measures of heart health are the percentage increase in heart rate caused by exercise and the time the heart rate takes to return to the base rate.Based on these parameters,what is your hypothesis regarding the heart health and test performance of the two groups?

Accepted Answer

The non-exercising group will

Question 19

Explain the importance of sample size in experiments.

Accepted Answer

Experiments performed with a small numbe

Question 20

You are running an analysis on different food items to test for the presence of the major biological macromolecules starch,proteins,and lipids.For each test you examine four food items and distilled water.What is the role of the distilled water?

Accepted Answer

The answer of You are running an analysis on different...

Exam 1: The Process of Science Java Report

Scientific studies within a single ethnic population

You are reviewing the results of five similar experiments,but each had a different sample size.Which of the following experiments has the most reliable results?

Why can't science answer questions about the existence of a supernatural being?

You have two experiments to review.One looks at 1000 of the 1,000,000 rabbits in an area.The other study looks at 100 of the 100,000 wolves in an area.Is one study more statistically accurate than the other? Why or why not?

In a clinical trial with 400 subjects,the most reliable results would be obtained if ____subjects were in the experimental group and ____in the control.

An experiment was performed using 1000 non-smoking males ages 18 to 22.Which of the following experimental groups would most likely produce the most similar results?

A positive correlation in a scientific study means

A hypothesis is often called an educated guess.Why is it a guess and why is it educated?

All of the following are true of side effects EXCEPT

What are the steps used in the process of a scientific study?

Some of the issues faced by media personnel when reporting the latest scientific findings include all of the following EXCEPT

Increasing sample size increases

A positive correlation on a memory test and drinking coffee would show

In a controlled experiment,the control and experimental groups differ in the

Based on Infographic 1.7,which statement is TRUE?

Differentiate between a simple correlation and causation.

Explain the importance of sample size in experiments.

You are running an analysis on different food items to test for the presence of the major biological macromolecules starch,proteins,and lipids.For each test you examine four food items and distilled water.What is the role of the distilled water?

Chemistry and Molecules of Life Mission to Mars

Cell Function and Structure Wonder Drug

Nutrition,metabolism,enzymes the Peanut Butter Project

Energy Flow and Photosynthesis the Future of Fuel

Dietary Energy and Cellular Respiration Supersize Me

DNA Structure and Replication Biologically Unique

Genes to Proteins Medicine From Milk

Cell Division and Mitosis Natures Pharmacy

Mutations and Cancer Fighting Fate

Single-Gene Inheritance and Meiosis Rock for a Cause

Complex Inheritance Qa: Genetics

Stem Cells and Cell Differentiation Grow Your Own

Natural Selection and Adaptation Bugs That Resist Drugs

A: Nonadaptive Evolution and Speciation Urban Evolution

B: Nonadaptive Evolution and Speciation Urban Evolution

Evidence for Evolution a Fish With Fingers

Life on Earth Qa: Evolution

Prokaryotic Diversity Lost City

A: Eukaryotic Diversity Rain Forest Riches

B: Eukaryotic Diversity Rain Forest Riches

Human Evolution Skin Deep

A: Population Ecology on the Tracks of Wolves and Moose

B: Population Ecology on the Tracks of Wolves and Moose

A: Community Ecology Whats Happening to Honey Bees

B: Community Ecology Whats Happening to Honey Bees

A: Ecosystem Ecology the Heat Is on

B: Ecosystem Ecology the Heat Is on

A: Sustainability the Makings of a Green City

B: Sustainability the Makings of a Green City

A: Overview of Physiology Man Versus Mountain

B: Overview of Physiology Man Versus Mountain

Digestive System Drastic Measures

A: Cardiovascular System Death in Bogalusa

B: Cardiovascular System Death in Bogalusa

Respiratory System Peak Performance

A: Central Nervous System Smoke on the Brain

B: Central Nervous System Smoke on the Brain

Reproductive System Too Many Multiples

Immune System Viral Mysteries

A: Plant Physiology

B: Plant Physiology

Filters

In a clinical trial with 400 subjects,the most reliable results would be obtained if subjects were in the experimental group and in the control.