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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Document preview page 1

Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 1

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Statistics for the Behavioral Sciences, 9th Edition Test Bank

Statistics for the Behavioral Sciences, 9th Edition Test Bank is an invaluable resource for exam day, offering practice MCQs to test your knowledge.

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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 1 preview imageGravetter Chapter 01Student: ___________________________________________________________________________1.A researcher uses an anonymous survey to investigate the study habits of American college students.Theentire group of American college students is an example of a ____.A.sampleB.statisticC.populationD.parameter2.A researcher uses an anonymous survey to investigate the study habits of American college students.Basedon the set of 56 surveys that were completed and returned, the researcher finds that these students spend anaverage of 4.1 hours each week working on course material outside of class.For this study, the set of 56students who returned surveys is an example of a ____.A.parameterB.statisticC.populationD.sample3.A researcher uses an anonymous survey to investigate the study habits of American college students.Basedon the set of 56 surveys that were completed and returned, the researcher finds that these students spend anaverage of 4.1 hours each week working on course material outside of class. For this study, the average of 4.1hours is an example of a ____.A.parameterB.statisticC.populationD.sample4.A researcher is interested in the eating behavior of rats and selects a group of 25 rats to be tested in a researchstudy.The group of 25 rats is an example of a ____.A.sampleB.statisticC.populationD.parameter
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 2 preview image
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 3 preview image5.A researcher is curious about the average monthly cell phone bill for high school students in the state ofFlorida.If this average could be obtained, it would be an example of a ____.A.sampleB.statisticC.populationD.parameter6.Although a research study is typically conducted with a relatively small group of participants known as a____, most researchers hope to generalize their results to a much larger group known as a ____.A.sample; populationB.statistic; sampleC.population; sampleD.parameter; population7.The relationship between a statistic and a parameter is the same as the relationship between ____.A.a sample and a populationB.a statistic and a parameterC.a parameter and a populationD.descriptive statistics and inferential statistics8.Statistical methods that organize, summarize, or simplify data are called ____.A.parametersB.statisticsC.descriptive statisticsD.inferential statistics9.A characteristic, usually a numerical value, that describes a sample is called a ____.A.parameterB.statisticC.variableD.constant10.A researcher records the change in weight (gain or lost) during the first semester of college for eachindividual in a group of 25 freshmen, and calculates the average change in weight.The average is an exampleof a ____.A.parameterB.statisticC.variableD.constant
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 4 preview image11.The average verbal SAT score for the entire class of entering freshmen is 530.However, if you select asample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly530.What statistical concept is used to explain the natural difference that exists between a sample mean andthe corresponding population mean?A.statistical errorB.inferential errorC.sampling errorD.parametric error12.A researcher conducts an experiment to determine whether moderate doses of St. Johns Wort have anyeffect of memory for college students.For this study, what is the independent variable?A.The amount of St. Johns Wort given to each participantB.The memory score for each participantC.The group of college studentsD.This cannot be answered without more information.13.A recent study reports that elementary school students who were given a nutritious breakfast each morninghad higher test scores than students who did not receive the breakfast.For this study, what is the independentvariable?A.The students who were given the nutritious breakfastB.The students who were not given the nutritious breakfastC.Whether or not a breakfast was given to the studentsD.The test scores for the students14.In a correlational study:A.1 variable is measured and 2 groups are comparedB.2 variables are measured and 2 groups are comparedC.1 variable is measured and there is only 1 group of participantsD.2 variables are measured and there is only 1 group of participants15.In an experimental study:A.1 variable is measured and 2 groups are comparedB.2 variables are measured and 2 groups are comparedC.1 variable is measured and there is only 1 group of participantsD.2 variables are measured and there is only 1 group of participants
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 5 preview image16.For a research study, comparing attitude scores for males and females, participant gender is an example ofwhat kind of variable?A.an independent variableB.an dependent variableC.a quasi-independent variableD.a quasi-dependent variable17.For an experiment comparing two methods for teaching social skill training to autistic children, theindependent variable is ____ and the dependent variable is ____.A.teaching methods; the autistic childrenB.the autistic children; the social skills that are learnedC.the social skills that are learned; the autistic childrenD.teaching methods; the social skills that are learned18.Which of the following is an example of a discrete variable?A.The age of each student in a psychology classB.The gender of each student in a psychology classC.The amount of time to solve a problemD.The amount of weight gained for each freshman at a local college19.Which of the following is an example of a continuous variable?A.The gender of each student in a psychology classB.The number of males in each class offered by the collegeC.The amount of time to solve a problemD.The number of children in a family20.If it is impossible to divide the existing categories of a variable, then it is an example of a(n) ____ variable.A.independentB.dependentC.discreteD.continuous21.Using letter grades (A, B, C, D, and E) to classify student performance on an exam is an example ofmeasurement on a(n) ____ scale of measurement.A.nominalB.ordinalC.intervalD.ratio
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 6 preview image22.Determining the class standing (1st, 2nd, and so on) for the graduating seniors at a high school would involvemeasurement on a(n) ____ scale of measurement.A.nominalB.ordinalC.intervalD.ratio23.What additional information is obtained by measuring two individuals on an interval scale compared to aordinal scale?A.Whether the measurements are the same or differentB.The direction of the differenceC.The size of the differenceD.None of the other options is correct.24.Determining a person's reaction time (in milliseconds) would involve measurement on a(n) ____ scale ofmeasurement.A.nominalB.ordinalC.intervalD.ratio25.After measuring two individuals, a researcher can say that Tom’s score is four points higherthanBill’s.The measurements must come from a(n) ____ scale.A.nominalB.ordinalC.intervalD.interval or ratio26.What is the first step to be performed in the following mathematical expression?(SX)2A.Square each score.B.Add the scores.C.Add the squared scores.D.Square the sum of the scores.27.What is the final step to be performed in the following mathematical expression?(SX)2?A.Square each score.B.Add the scores.C.Add the squared scores.D.Square the sum of the scores.
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 7 preview image28.What is the final step to be performed when computing S(X–2)2?A.Square each value.B.Subtract 2 points from each score.C.Sum the squared values.D.Subtract 22from each X2value.29.What is the value of (SX)2for the following scores?Scores: 1, 5, 2A.10B.16C.30D.6430.What is the value of SX2for the following scores?Scores: 1, 0, 2, 4A.14B.21C.28D.4931.What is the value of SX + 1 for the following scores?Scores 1, 0, 2, 4A.8B.10C.11D.1432.What is the value of S(X + 1) for the following scores?Scores: 1, 0, 1, 4A.4B.6C.7D.1033.What is the value of S(X–1)2for the following scores?Scores: 1, 2, 1, 4A.10B.16C.36D.49
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 8 preview image34.What is the value of (SX)2for the following scores?Scores: 1, 0, 2, 4A.14B.21C.28D.4935.What is the value of SX + 1 for the following scores?Scores: 1, 6, 3A.10B.11C.13D.1636.What is the value of S(X + 1) for the following scores?Scores: 2, 4, 7A.10B.11C.13D.1637.What is the value of S(X–2) for the following scores?Scores: 2, 3, 5A.4B.6C.8D.1038.What is the value of S(X–2 )2for the following scores?Scores: 2, 3, 5A.8B.10C.16D.3639.You are instructed to subtract four points from each score and find the sum of the resulting values.Howwould this set of instructions be expressed in summation notation?A.SX–4B.S (X–4)C.4–SXD.S(4–X)
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 9 preview image40.You are instructed to subtract four points from each score, square the resulting value, and find the sum ofthe squared numbers.How would this set of instructions be expressed in summation notation?A.SX–42B.(SX–4)2C.S(X–4)2D.SX2–441.Using the average score to describe a sample is an example of inferential statistics.TrueFalse42.A researcher is interested in the average income for registered voters in the United States.The entire groupof registered voters is an example of a population.TrueFalse43.The average score for a population is an example of a statistic.TrueFalse44.A researcher interested in vocabulary development obtains a sample of 3-year-old children to participate ina research study.The average score for the group of 20 is an example of a parameter.TrueFalse45.The goal for an experiment is to demonstrate that changes in one variable are responsible for causingchanges in a second variableTrueFalse46.An experimental research study typically involves measuring two scores for each individual in one group ofparticipants.TrueFalse47.A correlational study typically uses only one group of participants but measures two different variables (twoscores) for each individual.TrueFalse
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 10 preview image48.A correlational study is used to examine the relationship between two variables but cannot determinewhether it is a cause-and-effect relationship.TrueFalse49.A recent report concluded that children with siblings have better social skills than children who grow up asan only child.This is an example of an experimental study.TrueFalse50.A recent report concluded that college graduates have higher life-satisfaction scores than individuals who donot receive college degrees.For this study, graduating versus not graduating is an example of aquasi-independent variable.TrueFalse51.The participants in a research study are classified as high, medium, or low in self-esteem.Thisclassification involves measurement on a nominal scale.TrueFalse52.A discrete variable must be measured on a nominal or an ordinal scale.TrueFalse53.Classifying people into two groups on the basis of gender is an example of measurement on an ordinalscale.TrueFalse54.Students in an introductory art class are classified as art majors and non-art majors.This is an example ofmeasurement on a nominal scale.TrueFalse55.To determine how much difference there is between two individuals, you must use either an interval or aratio scale of measurement.TrueFalse
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 11 preview image56.If a researcher measures two individuals on a nominal scale, it is impossible to determine which individualhas the larger score.TrueFalse57.If a researcher measures two individuals on an ordinal scale, then it is impossible to determine how muchdifference exists between the two people.TrueFalse58.For statistical purposes, there usually is not much difference between scores from an interval scale andscores from a ratio scale.TrueFalse59.Recording the number of students who are absent each day at a high school would be an example ofmeasuring a discrete variable.TrueFalse60.A high school gym teacher records how much time each student requires to complete a one-mile run.Thisis an example of measuring a continuous variable.TrueFalse61.In an introductory theater class, the professor records each student’s favorite movie from the previousyear.The teacher is measuring a discrete variable.TrueFalse62.A data set is described as consisting of n = 15 scores.Based on the notation being used, the data set is asample.TrueFalse63.To compute (SX)2, you first add the scores, then square the total.TrueFalse64.The first step in computing S(X + 1), is to add 1 point to each score.TrueFalse
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 12 preview image65.For the following scores, X2= (X)2.Scores:1, 1, 1, 1TrueFalse66.For the following scores, S(X + 1) = 9.Scores: 1, 3, 0, 1TrueFalse67.For the following scores, S(X + 1)2= 81.Scores: 1, 3, 0, 1TrueFalse68.For the following scores, S(X–1) = 10.Scores:1, 3, 7TrueFalse69.For the following scores, SX2= 35.Scores:1, 3, 5TrueFalse70.For the following scores, SX2= 49.Scores: 1, 4, 2, 0TrueFalse71.Statistical techniques are classified into two major categories:Descriptive and Inferential.Describe thegeneral purpose of each category.
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 13 preview image72.Define the concept of "sampling error."Note:Your definition should include the concepts of sample,population, statistic, and parameter.73.Describe the sequence of mathematical operations that would be used to evaluate each of the followingexpressions.a. SX2b. (SX)2c. SX–2d. S(X–2)e. S(X–2)274.Calculate each value requested for the following set of scores.Scores:1, 2, 0, 4a. SXb. SX2c. (SX)2
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 14 preview image75.Calculate each value requested for the following set of scores.Scores:5, 2, 4, 2a. SX–2b. S(X–2)c. S(X–2)276.Calculate each value requested for the following set of scores:XY15310-22-4a. SXb. SYc. SXSYd. SXY
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 15 preview imageGravetter Chapter 01Key1.A researcher uses an anonymous survey to investigate the study habits of American college students.Theentire group of American college students is an example of a ____.A.sampleB.statisticC.populationD.parameter2.A researcher uses an anonymous survey to investigate the study habits of American college students.Basedon the set of 56 surveys that were completed and returned, the researcher finds that these students spend anaverage of 4.1 hours each week working on course material outside of class.For this study, the set of 56students who returned surveys is an example of a ____.A.parameterB.statisticC.populationD.sample3.A researcher uses an anonymous survey to investigate the study habits of American college students.Basedon the set of 56 surveys that were completed and returned, the researcher finds that these students spend anaverage of 4.1 hours each week working on course material outside of class. For this study, the average of 4.1hours is an example of a ____.A.parameterB.statisticC.populationD.sample4.A researcher is interested in the eating behavior of rats and selects a group of 25 rats to be tested in a researchstudy.The group of 25 rats is an example of a ____.A.sampleB.statisticC.populationD.parameter
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Statistics for the Behavioral Sciences, 9th Edition Test Bank - Page 16 preview image5.A researcher is curious about the average monthly cell phone bill for high school students in the state ofFlorida.If this average could be obtained, it would be an example of a ____.A.sampleB.statisticC.populationD.parameter6.Although a research study is typically conducted with a relatively small group of participants known as a____, most researchers hope to generalize their results to a much larger group known as a ____.A.sample; populationB.statistic; sampleC.population; sampleD.parameter; population7.The relationship between a statistic and a parameter is the same as the relationship between ____.A.a sample and a populationB.a statistic and a parameterC.a parameter and a populationD.descriptive statistics and inferential statistics8.Statistical methods that organize, summarize, or simplify data are called ____.A.parametersB.statisticsC.descriptive statisticsD.inferential statistics9.A characteristic, usually a numerical value, that describes a sample is called a ____.A.parameterB.statisticC.variableD.constant10.A researcher records the change in weight (gain or lost) during the first semester of college for eachindividual in a group of 25 freshmen, and calculates the average change in weight.The average is an exampleof a ____.A.parameterB.statisticC.variableD.constant
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