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A close-up of an orange and blue jellyfish

Description automatically generated with low confidence

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A quasi-experiment is used to determine if an independent and dependent variable has a cause-and-effect connection.

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Definition  2 examples  when is it used  Steps in process 2 advantages and 2 disadvantages

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Quasi is defined as nearly or partially and is something that is almost or sort of like.

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Quasi-experiments  aim to evaluate interventions but do not use randomization .

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Gender Differences in Student Achievement  A research question A hypothesis A Proposal of how to collect data

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Hypothesize that a new after- school program will lead to higher grades.  O ne of which implements the new program while the other does not. You choose two similar groups of children who attend different schools.

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When doing a randomized controlled experiment is neither logistically nor ethically possible.        When to use quasi-experimental? for ethical or practical reasons Ethical Practical

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They frequently include real-world interventions rather than contrived laboratory conditions; they have higher external validity than most authentic experiments. Internal validity is higher in non-experimental studies than in experimental studies because they allow for greater.

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Internal validity is lower than experimental tests since it is impossible to verify that all confounding variables were accounted for without selection. Retrospective data gathered for other purposes might be incorrect, partial, or impossible to grasp.

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Quasi-experiments are like quantitative and qualitative experiments in that they lack random group assignment and adequate controls, making statistical analysis problematic.

Quasi-experimental

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