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Chapter 7

PSYC 314 Chapter 7: PSYC 314 Chapter 7 Review
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Department
Psychology
Course
PSYC 314
Professor
Stansbury
Semester
Spring

Description
Chapter 7 Review • Acquiescent response set - a response bias where a participant tends to agree with most, if not all, of the items on a scale, regardless of what they are asking • Alternative-form reliability - a form of reliability that evaluates how well a measure correlates with a similar, but different, measure of the same variable • Area probability sampling - a sampling strategy where the researcher first divides the population into subgroups based on geographic area and then randomly selects participants from each geographical subgroup • Closed-ended question - a question participants answer using a predetermined set of response options • Concurrent validity - the extent to which a measurement corresponds with an existing outcome or behavior; used to establish the criterion validity of a measurement • Construct validity - the extent to which the scale actually measures the desired construct; established by evaluating the convergent and discriminant validity of the measurement • Content validity - the degree to which the items on a scale reflect the range of material that should be included in a measurement of the target variable • Convergent validity - the degree to which scores on a measurement correspond to measures of other theoretically related variables; used to help establish the construct validity of a measurement • Correlation - a measure of the linear relationship between two variables; can range from -1.0 to 1.0; typically represented by the symbol r • Correlational study - a research approach that focuses on how variables relate to one another • Criterion validity - the extent to which a measurement relates to a particular outcome of behavior; established by evaluating the concurrent and predictive validity of the measurement • Cronbach’s alpha - a statistic used to evaluate the internal consistency reliability of a scale; can range from 0 to 10 • Directional hypothesis - a hypothesis that makes a specific prediction as to the exact prediction as to the exact nature of the relationship between two variables • Discriminant validity - the extent to which a measurement does not correspond to measures of unrelated variables; used to help establish the construct validity • Distractor items - items included in a scale to mislead participants as to the real purpose of the scale • Equivalent-form reliability - another name for alternative-form reliability • Error of central tendency - a response bias where a participant tends to avoid using the extreme responses alternative on a scale • Evaluation apprehension - anxiety of concern participants may exper
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