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What is a representative sample?

  • A sample that is biased and not reflective
  • A sample that accurately reflects the population (correct)
  • A sample that includes the entire population
  • A sample that is randomly selected
  • A sampling frame is necessary for selecting a representative sample.

    True

    Define sample bias.

    Distortion in representativeness of a sample.

    The segment of the population selected for investigation is called a ______.

    <p>sample</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Population = Universe of units from which the sample is selected Sampling frame = List of units to draw a sample Generalizable study = Allows claims about a larger population Sample bias = Distortion in representativeness of sample</p> Signup and view all the answers

    What is one of the primary purposes of the Privacy Act?

    <p>To access personal information held by the government</p> Signup and view all the answers

    Reliability refers to the extent to which a measure yields consistent results on repeated trials.

    <p>True</p> Signup and view all the answers

    List one criterion for assessing documents in social research.

    <p>Authenticity, Credibility, Meaning, Representativeness</p> Signup and view all the answers

    A __________ study tracks changes in the same population over time.

    <p>trend</p> Signup and view all the answers

    Match the following types of surveys to their characteristics:

    <p>Cross-sectional = Snapshot of one point in time Longitudinal = Pattern over time Trend study = Track changes in same population Panel study = Track changes with same people</p> Signup and view all the answers

    Which aspect is a weakness of survey methods?

    <p>Low validity</p> Signup and view all the answers

    The term 'response rate' refers to the percentage of the population that refuses to participate in a survey.

    <p>False</p> Signup and view all the answers

    What is a possible source of error in surveys?

    <p>Sampling, interviewer effects, response bias, questionnaire problems</p> Signup and view all the answers

    What type of sampling ensures every subject has an equal chance of selection?

    <p>Simple random sampling</p> Signup and view all the answers

    Increasing the size of a sample guarantees precision in sample results.

    <p>False</p> Signup and view all the answers

    What is the purpose of a control group in an experiment?

    <p>To provide a baseline for comparison with the experimental group.</p> Signup and view all the answers

    The process of reaching conclusions about a population based on sample data is called __________.

    <p>statistical inference</p> Signup and view all the answers

    Match the sampling methods with their definitions:

    <p>Convenience sampling = Subjects are easily accessible Stratified sampling = Representative subjects from various subgroups Systematic sampling = Selection of every nth subject Purposive sampling = Subjects selected based on specific characteristics</p> Signup and view all the answers

    What is one of the main roles of a moderator in guided conversations?

    <p>To facilitate the interview and draw information from participants</p> Signup and view all the answers

    In ethnographic research, the researcher is not involved in the culture being studied.

    <p>False</p> Signup and view all the answers

    Which sampling type involves clusters being selected first?

    <p>Multi-stage cluster sampling</p> Signup and view all the answers

    What is the primary purpose of content analysis?

    <p>To systematically examine and interpret a body of material for patterns, themes, biases, and meanings.</p> Signup and view all the answers

    A heterogeneous population is likely to have less variation among its members.

    <p>False</p> Signup and view all the answers

    What is a margin of error?

    <p>The difference between the true population value and the estimated value based on the sample.</p> Signup and view all the answers

    The degree to which a sample reflects the characteristics of a population is known as __________.

    <p>representativeness</p> Signup and view all the answers

    The initial participant that snowball sampling begins with is known as __________.

    <p>the seed</p> Signup and view all the answers

    Match each qualitative research method with its definition:

    <p>Ethnography = Immersion in a group's culture for extended observation Case Study = Investigation of a phenomenon in a real-life context Content Analysis = Systematic examination of communication material Historical Analysis = Understanding topics by constructing a chronology of events</p> Signup and view all the answers

    Which of the following is a disadvantage of conducting experiments?

    <p>They may occur in unnatural settings.</p> Signup and view all the answers

    What is considered a disadvantage of guided conversations?

    <p>Unnatural setting and less control</p> Signup and view all the answers

    A representative sample can be thought of as a microcosm of the population.

    <p>True</p> Signup and view all the answers

    What does the term 'Hawthorne effect' refer to in research?

    <p>The change in behavior of study participants due to their awareness of being observed.</p> Signup and view all the answers

    In ethnography, the 'stranger' refers to someone who __________.

    <p>enters a group without insider knowledge</p> Signup and view all the answers

    Which of the following is NOT a criterion for assessing documents in social research?

    <p>Popularity</p> Signup and view all the answers

    Qualitative content analysis focuses on quantifying content rather than exploring textual meaning.

    <p>False</p> Signup and view all the answers

    What is one key skill required by moderators conducting discussions?

    <p>Ability to facilitate open discussion.</p> Signup and view all the answers

    In qualitative research, coding can be both __________ and __________.

    <p>deductive; inductive</p> Signup and view all the answers

    Which approach is less interested in how people see things and more interested in how they do things?

    <p>Ethnomethodology</p> Signup and view all the answers

    What type of variable can be ranked but the distances between the ranks are not equal?

    <p>Ordinal variable</p> Signup and view all the answers

    Independent variables are controlled and manipulated in research.

    <p>True</p> Signup and view all the answers

    Define what a 'measure of central tendency' means in statistics.

    <p>A measure of central tendency is a statistical measure that identifies a single value as representative of an entire dataset.</p> Signup and view all the answers

    The difference between the maximum and minimum value in a dataset is known as the _______.

    <p>range</p> Signup and view all the answers

    What is the correct order of measures of central tendency from smallest to largest?

    <p>Mode, Median, Mean</p> Signup and view all the answers

    Descriptive statistics are used to make predictions about a larger population.

    <p>False</p> Signup and view all the answers

    The _______ is a measure that indicates how spread out the values are from the mean.

    <p>standard deviation</p> Signup and view all the answers

    Which of the following defines causation?

    <p>When one variable causes variation in another</p> Signup and view all the answers

    What is a key advantage of closed-ended questions?

    <p>Easier to process data</p> Signup and view all the answers

    Independent variables are not controlled or manipulated in a study.

    <p>False</p> Signup and view all the answers

    What are the two primary groups of variables in research?

    <p>Independent variables and dependent variables</p> Signup and view all the answers

    A _____ variable has categories that can be ranked, but the distances between the categories are not equal.

    <p>ordinal</p> Signup and view all the answers

    Which of the following question types requires respondents to provide their own answers?

    <p>Open-ended questions</p> Signup and view all the answers

    Descriptive statistics are used to make conclusions about a larger population based on a sample.

    <p>False</p> Signup and view all the answers

    What does a contingency table show?

    <p>The relationship between two variables</p> Signup and view all the answers

    The _____ is the most frequently occurring value in a data set.

    <p>mode</p> Signup and view all the answers

    In a Likert scale question, respondents typically rate their level of agreement on a scale. What is a common number of response options used?

    <p>5</p> Signup and view all the answers

    Variance measures how closely values in a distribution are to the mean.

    <p>True</p> Signup and view all the answers

    What type of analysis involves examining two variables simultaneously?

    <p>Bivariate analysis</p> Signup and view all the answers

    The difference between the maximum and minimum values in a data set is called the _____ .

    <p>range</p> Signup and view all the answers

    Match the types of variables with their descriptions:

    <p>Nominal = Categories with no order Ordinal = Ranked categories with no known distances Interval = Equal distances between values Ratio = Same as interval but with a true zero point</p> Signup and view all the answers

    Which of the following is a characteristic of qualitative research?

    <p>Uses open-ended questionnaires</p> Signup and view all the answers

    In a matrix question, respondents are asked to evaluate multiple items using the same set of response options.

    <p>True</p> Signup and view all the answers

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