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Exam 13: Evaluating the Methods Sectionprocedures

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Question 21

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Discuss instrumentation as a threat to validity.

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Instrumentation concerns the quality of ...

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Question 22

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The Hawthorne effect and novelty and disruption effects are the same.

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Question 23

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______ refers to when the control group is aware they are in a study and make efforts to do better and outperform the experimental group.

Attrition is also called experimental mortality.

Unlike random selection, random assignment means that all those selected from the population to participate in a study have an equal chance of being assigned to a particular group.

The procedures section is not the section where considerable focus will be in determining the efficacy of the study.

______ type threat to internal validity occurs when the experimental and control groups are selected based on different criteria or when participants are assigned to groups differentially and not by random assignment.

Provide an example of interaction between personological variables and treatment (sample characteristics) as a threat to population validity.

Define novelty or disruption effects.

Discuss pretest sensitization.

All research methods use random assignment.

Theoretically, the more control the researchers have over the experimental condition, ______.

The definition of a true experimental study requires that a manipulation occur and that there be random assignment to groups.

Give an example of how maturation may impact a study.

______ validity refers to the extent to which the researchers can replicate the actual events occurring in the natural environment and thus can generalize the results back to the population.

Describe the benefits and concerns about random assignment in educational research.

Random assignment to groups ______ the effects of some threats to validity.

The threat of ______ has been noted to be the most significant issue for single-subject research designs.

Give a brief description of what the procedures section includes.

A solution to which threat is to use an unobtrusive measure, so the participants are not aware they are being observed or measured on the dependent variable?