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Research Ch. 2

Chapter 2 of Research Design

TermDefinition
Variables Attributes of sampling units, events, or conditions that can take on two or more values, or observed or measured events or conditions that vary or are likely to vary.
Varied Replication Repeating (replicating) a previous study but with some new twist.
Working Hypotheses An empirically testable supposition, the experimental hypothesis.
Operational Definitions The meaning of a variable in terms of the operations (empirical conditions) used to measure it or the experimental method involved in its determination.
Parsimony The quality of economy in a statement or proposition, so that it is not overly wordy or unduly complex.
Replication Research designed to assess the repeat-ability of a result.
Serendipity Making a chance discovery.
Theoretical Definitions The meaning of a variable in abstract or conceptual terms.
Theory A set of proposed explanatory statements or propositions connected by logical arguments and by explicit and implicit assumptions.
Variable An event or a condition the researcher observes or measures or plans to investigate that is likely to vary.
Coherence The high degree to which the components of a theory or hypothesis "stick together" logically
Construct Abstract expression, term, or concept that is formulated ("constructed") to serve as a casual or descriptive explanation.
Context of Discovery Included the initial hunches, questions, or insights and the resulting conjectural statements or suppositions that give direction to researchers' observations.
Context of Justification Included the empirical evaluation of conjectural statements or suppositions and the evidence-based defense of conclusions and generalizations.
Dependent Variable A variable the changes in which are viewed as dependent on changes in one or more other variables.
Experimental Hypotheses
Falsifiability Karl Popper's proposition that a conjecture or theoretical assertion is scientific only if it can be stated in such a way that it can, if incorrect, be refuted by some empirical means.
Hypothesis A conjectural statement or supposition
Hypothesis-generating Heuristics Strategies or circumstances that lead to testable hypotheses.
Independent Variable A variable on which the dependent variable depends; in experiments, a variable that the experimenter manipulates to determine the degree to which there are effects on another variable.
Moderator Variables Conditions that alter the relationship between independent and dependent variables.
Occam's Razor The principle that explanations should be as parsimonious as possible.
Variables Attributions of sampling units, events, or conditions that can take on two or more values, or observed or measured events or conditions that vary or are likely to vary.
Varied Replication Repeating (replicating) a previous study but with some new twist.
Working Hypotheses An empirically testable supposition, the experimental hypothesis.
Operational Definitions The meaning of a variable in terms of the operations (empirical conditions) used to measure it or the experimental method involved in its determination
Parsimony The quality of economy in a statement or proposition, so that it is not overly wordy or unduly complex.
Replication Research designed to assess the repeatability
Serendipity Making a chance discovery
Theoretical Definitions The meaning of a variable in abstract or conceptual terms.
Theory A set of proposed explanatory statements or propositions connected by logical arguments and by explicit and implicit assumptions.
Variable An event or a condition the researcher observes or measures or plans to investigate that is likely to vary.
Coherence The high degree to which the components of a theory or hypothesis "stick together" logically.
Construct Abstract expression, term, or concept that is formulated (constructed) to serve as a casual or descriptive explanation.
Context of Discovery Included the initial hunches, questions, or insights and the resulting conjectural statements or suppositions that give direction to researchers observations.
Context of Justification Includes the empirical evaluation of conjectural statements or suppositions and the evidence-based defense of conclusions and generalizations
Dependent Variable A variable the changes in which are viewed as dependent on changes in one or more other variables.
Experimental Hypothesis The experimenter's working hypothesis; also an alternative to the null hypothesis (Ho) in null hypothesis significance testing.
Created by: alinderm