________ are the number of different ways in which objects can be arranged in order.
Answer
Correct Answer:
Permutations
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The average adult in the us watches _____ hours of television each week
Answer
Correct Answer:
28
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The two sets of pressures that multinational enterprises (mnes) confront are _____.
Answer
Correct Answer:
Cost reduction and local responsiveness
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To locate the percentile for a given observation in a data set, the data must be ___________.
Answer
Correct Answer:
Sorted and listed from the minimum to the maximum values
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The _____________ is the best point estimate of the population mean.
Answer
Correct Answer:
The sample mean is the best point estimate of the population mean.
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The _______ of a discrete random variable represents the mean value of the outcomes
Answer
Correct Answer:
Expected value
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Which of the following is TRUE Or False?
Answer
Correct Answer:
A theory is a set of propositions used to describe a phenomenon.
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Archival research is an example of ______.
Answer
Correct Answer:
Non-experimental research
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You are conducting an experiment to see if level of ambient illumination influences reading speed. You have 2 levels of illumination (bright light and dim light), and for each of the participants you have recorded reading speeds (words/minute). In this example, reading speed would be considered the ______.
Answer
Correct Answer:
Confounding variable
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You are conducting a survey in which you ask people to indicate whether they prefer rock, country, or classical music, and counted how many of your respondents chose each category. You have collected data on a(n) ______ variable.
Answer
Correct Answer:
Nominal
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If you would like to be able to conclude that X causes Y (e.g. smoking causes lung cancer), the best approach would be ______.
Answer
Correct Answer:
An experiment
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With regard to level of measurement, NOIR would stand for ______.
Answer
Correct Answer:
Nominal, ordinal, interval, ratio
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Students who consume caffeine while studying will earn higher grades than students who do not consume caffeine. This is an example of ______.
Answer
Correct Answer:
A directional hypothesis
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You are conducting an experiment to see if level of ambient illumination influences reading speed. You have 2 levels of illumination (bright light and dim light), and for each of the participants you have recorded reading speeds (words/minute). Given the nature of your research question you would use a ______.
Answer
Correct Answer:
Directional research hypothesis
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Which of the following is TRUE?
Answer
Correct Answer:
A sample is a subset of a population.
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You are recording order of finish of participants in a race (e.g. first, second, third, etc.). The data you are collecting is ______ in nature.
Answer
Correct Answer:
Ordinal
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Random assignment ______.
Answer
Correct Answer:
Should be used to ensure that any participant is equally likely to be assigned to either the control group or the experimental group
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Which of the following is the first step in the scientific method?
Answer
Correct Answer:
Developing a testable research hypothesis
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In an experiment, the factor being controlled or manipulated by the experimenter is called the ______.
Answer
Correct Answer:
Independent variable
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The mean is an example of ______.
Answer
Correct Answer:
A descriptive statistic
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_____ Statistical procedure used to test hypotheses and draw conclusions from data collected during research studies.
Answer
Correct Answer:
Inferential
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____ Statistic used to summarize and describe a set of data for a variable.
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Descriptive
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Criterion variable is Label for the dependent variable in a nonexperimental (correlational) research study
Answer
Correct Answer:
True
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Predictor variable is Label for the independent variable in a non experimental (correlational) research study.
Answer
Correct Answer:
True
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_____Research methods involving the use of records or documents of the activities of individuals, groups, or organizations.
Answer
Correct Answer:
Archival research
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_____ Research methods involving the systematic and objective observation of naturally occurring behavior or events.
Answer
Correct Answer:
Observational research
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_____ Research methods obtaining information directly from a group of people regarding their opinions, beliefs, or behavior.
Answer
Correct Answer:
Survey research
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_____ Research methods comparing naturally formed or preexisting groups.
Answer
Correct Answer:
Quasi experimental research
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Non experimental Research methods designed to measure naturally occurring relationships between variables
Answer
Correct Answer:
True
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Group of participants in an experiment not exposed to the independent variable is control group
Answer
Correct Answer:
True
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Assignment of participants to categories of an independent variable such that each participant has an equal chance of being assigned to each category is random assignment
Answer
Correct Answer:
True
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Confounding variable is variable related to an independent variable that provides an alternative explanation for the relationship between the independent and dependent variables.
Answer
Correct Answer:
True
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Research methods designed to test causal relationships between variables is experimental research
Answer
Correct Answer:
True
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___ level of measurement Values of variables equally spaced along a numeric continuum.
Answer
Correct Answer:
Interval
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____ level of measurement is Values of variables equally spaced along a numeric continuum with a true zero point.
Answer
Correct Answer:
Ratio
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___ level of measurement is Values of variables can be placed in an order relative to the other values.
Answer
Correct Answer:
Ordinal
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____ level of measurement is values of variables differing in category or type.
Answer
Correct Answer:
Nominal
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____ is Assignment of numbers or categories to objects or events according to rules.
Answer
Correct Answer:
Measurement
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___ is Subset or portion of a population.
Answer
Correct Answer:
Sample
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____ is Total number of possible units or elements that could potentially be included in a study.
Answer
Correct Answer:
Population
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Variable measured by the researcher expected to change or vary as a function of the independent variable is called
Answer
Correct Answer:
Dependent variable
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Variable manipulated or controlled by the researcher is called
Answer
Correct Answer:
Independent variable
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Set of propositions used to describe or explain a phenomenon is called
Answer
Correct Answer:
Theory
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Property or characteristic of an object, event, or person that can take on different values is called
Answer
Correct Answer:
Variable
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Statement regarding an expected or predicted relationship between variables is ____ hypothesis
Answer
Correct Answer:
Research
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____Method of investigation that uses the objective and systematic collection and analysis of empirical data to test theories and hypotheses.
Answer
Correct Answer:
Scientific
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Branch of mathematics dealing with the collection, analysis, interpretation, and presentation of masses of numerical data is called
Answer
Correct Answer:
Statistics
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High School GPA and score on the SAT exams are considered during college admissions. Both these values are continuous and quantitative measurements.
Answer
Correct Answer:
False
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A continuous variable is measured along a continuum at any place beyond the decimal point and can be positive (e.g., height) or negative (e.g., temperature) in value.
Answer
Correct Answer:
True
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In an ordinal scale, a larger number represents a greater value than a smaller number, and the ratio of any two numbers represents a meaningful value.
Answer
Correct Answer:
False
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Random assignment is not possible in a quasi-experiment because the variables being studies cannot be manipulate
Answer
Correct Answer:
True
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Descriptive statistics can help to infer the unknown parameters in a population.
Answer
Correct Answer:
False
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Students were asked to rate the effectiveness of video lectures for an online class. Their ratings on a 5-point scale would be:
Answer
Correct Answer:
Discrete and quantitative.
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Students were asked to rate the effectiveness of video lectures for an online class. Their ratings on a 5-point scale would be:
Answer
Correct Answer:
Discrete and quantitative.
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In blinded studies, consumers’ rankings of the effectiveness of brand name painkillers did not differ from generic painkillers that had the same key ingredients, on a 5-point scale. The scale used in these studies is:
Answer
Correct Answer:
An interval scale.
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Listeners to a specific radio station were asked to rank one hundred songs for popularity. The composite rank scores for the songs were then published and showed the use of a:
Answer
Correct Answer:
Ordinal scale.
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Data from airline passengers were ranked by their country of origin, an example of a:
Answer
Correct Answer:
Nominal scale.
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Is children’s vocabulary related to their parents’ education level? To answer this, researchers measured the number of words 3-year-old children knew and their parents’ education (in number of years). This data can be examined using:
Answer
Correct Answer:
Correlational method
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Randomly assigning to different groups to ensure that manipulations of the independent variable are measured on similar groups is necessary in:
Answer
Correct Answer:
Experimental method
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A librarian at a university is interested in looking at how undergraduate students use the library resources. He sends a survey about the library usage to all undergraduate students in the college but receives responses from only a subset of students. In this example, the librarian was interested in getting information from the ______, but could obtain only a ______.
Answer
Correct Answer:
Population; sample
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A librarian at a university is interested in looking at how many undergraduate students use the library. He records student use of different library resources in one month and extrapolates this information for the year-round usage. This is an example of:
Answer
Correct Answer:
Inferential statistics.
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A librarian at a university is interested in looking at how many undergraduate students use the library. He records student use of different library resources in one month and extrapolates this information for the year-round usage. This is an example of:
Answer
Correct Answer:
Inferential statistics.
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A librarian at a university is interested in looking at how many undergraduate students use the library. He records student use of different library resources and tabulates this usage. This information is an example of:
Answer
Correct Answer:
Descriptive statistics.
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True value is the value 0 truly indicates nothing or the absence of the phenomena being measured on a scale of measurement.
Answer
Correct Answer:
True
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Statistics is a branch of mathematics used to _____ a group of numbers or observations.
Answer
Correct Answer:
All of these
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_____ refers to single measurement or observation.
Answer
Correct Answer:
Both b and c
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Scientific Method is a set of systematic techniques used to _____ knowledge concerning observable and measurable phenomena.
Answer
Correct Answer:
All of these
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Science is the study of phenomena, such as behavior, through strict observation and _____
Answer
Correct Answer:
All of these
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How many Scales of Measurement are there?
Answer
Correct Answer:
4
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A characteristic that describes a sample is known as_____
Answer
Correct Answer:
Sample Statistic
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Sample is a set of selected _____ taken from a population of interest.
Answer
Correct Answer:
All of these
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Research Method is a set of systematic techniques used to _____ knowledge concerning observable and measurable phenomena.
Answer
Correct Answer:
All of these
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_____ refers to single measurement or observation.
Answer
Correct Answer:
Both b and c
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Measurements that have a true zero and are distributed in equal units refer to_____
Answer
Correct Answer:
Ratio Scale
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Measurements that have a true zero and are distributed in equal units refer to_____
Answer
Correct Answer:
Ratio Scale
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Random Assignment is used to ensure that participants in a study have an equal chance of being assigned to a particular group or condition.
Answer
Correct Answer:
True
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A preexisting variable that is often a characteristic inherent to an individual, which differentiates the groups or conditions being compared in a research study is known as_____
Answer
Correct Answer:
Quasi-independent Variable
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All are correct about Quantitative Variable except _____
Answer
Correct Answer:
Collected by labels
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All are correct about Qualitative Variable except _____
Answer
Correct Answer:
Varies by class and amount
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The population characteristic typically of greatest interest to a researcher is _____
Answer
Correct Answer:
Mean score
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Population is a group of _____
Answer
Correct Answer:
All of these
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Measurements where values convey order or rank alone refer to_____
Answer
Correct Answer:
Ordinal Scale
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Measurements where values convey order or rank alone refer to_____
Answer
Correct Answer:
Ordinal Scale
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Operational Description is a description of some observable event in terms of _____ by which it was observed or measured.
Answer
Correct Answer:
Specific process or manner
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Operational Description is a description of some observable event in terms of _____ by which it was observed or measured.
Answer
Correct Answer:
Specific process or manner
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Operational Description is a description of some observable event in terms of _____ by which it was observed or measured.
Answer
Correct Answer:
Specific process or manner
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Nominal Variables are typically _____ that have been coded.
Answer
Correct Answer:
Categorical Variables
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Levels of the Independent Variable are the specific conditions of the independent variable used in _____
Answer
Correct Answer:
Both a and b
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Interval Scale refers to measurements that have a true zero and distributed in equal units.
Answer
Correct Answer:
False
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The example of inferential Statistics includes_____
Answer
Correct Answer:
All of these
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Independent Variable is the _____
Answer
Correct Answer:
Presumed cause
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Which of the following is the element of control in an Experiment?
Answer
Correct Answer:
All of these
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Equidistant Scale is a set of numbers distributed in equal units.
Answer
Correct Answer:
True
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_____ is measured in whole units or categories that are not distributed along a continuum.
Answer
Correct Answer:
Discrete Variable
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Descriptive Statistics are typically presented in _____
Answer
Correct Answer:
All of these
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Descriptive Statistics are typically presented in _____
Answer
Correct Answer:
All of these
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Descriptive Statistics refer to procedures used to _____
Answer
Correct Answer:
All of these
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Dependent Variable is the _____
Answer
Correct Answer:
Presumed effect
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Dependent Variable is the _____
Answer
Correct Answer:
Presumed effect
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Dependent Variable is the variable that is measured in each group of a study and is believed to change in the presence of the ______
Answer
Correct Answer:
Independent Variable
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Datum is a single measurement or observation, usually referred to as a_____
Answer
Correct Answer:
Both b and c
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Data is a set of _____ that are typically numeric.
Answer
Correct Answer:
All of these
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A variable measured along a continuum at any place beyond the decimal point is known as_____
Answer
Correct Answer:
Continuous Variable
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A variable measured along a continuum at any place beyond the decimal point is known as_____
Answer
Correct Answer:
Continuous Variable
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Coding is the procedure of converting a_____ variable to a numeric value.
Answer
Correct Answer:
Both a and b
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More Statistics (Social And Behavioral Sciences) Subjects
