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Research Methods (no hyphens or spaces)

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Across
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If an experiment were being conducted involving noise levels (high or low), and its impact on student test scores, noise levels would be the ______ variable.
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If an experiment were being conducted involving noise levels (high or low), and its impact on student test scores, student test scores would be the ______ variable.
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A selected segment of a group that closely parallels the population as a whole in terms of the key variables under examination.
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Key features of ______ include: willingness to change with new evidence, ruthless peer review, taking account of all new discoveries, inviting criticism, verifiable results, limiting claims of usefulness, and accurate measurement.
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Researches studied the effects of playing music on bean seeds to determine if it increases the germination rate. Using random assignment and carefully controlled conditions, they were successful in establishing ______.
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An experimental study that does not include random assignment to groups, usually involving some kind of intervening factor in one group population.
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A subset of a population in which each member of the subset has an equal probability of being selected.
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A method of sampling that involves the division of a population into smaller sub groups known as strata, from where the participants are then chosen from.
Down
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A group of individuals or objects that share common characteristics that are of interest to the researcher(s).
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In contrast to (8 Across), key features of ______ include: fixed ideas, no peer review, selecting only favorable discoveries, seeing criticism as conspiracy, non-repeatable results, claiming widespread usefulness, and "ball-park" measurement.
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What type of study shows the relationship, or association, between two variables?
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A researcher creates a scatter plot to measure the association between two variables. If the dots along the sloped line are close to each other and the line, they indicate a strong ______.
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If a student were being conducted to understand the relationship between activity levels and weight fluctuation, a participant's diet could be a potential ______ variable.
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A study done that includes an independent and dependent variable, random sampling, and is seeking to find a case and effect relationship between variables is called an ______ study.