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# exam3b-answerkey - PSC 41 Fall 2007 Exam 3 FORM B Name ID...

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PSC 41 – Fall 2007 Name Exam 3 - FORM B ID# Instructions: There are 45 multiple-choice questions. Read each question and the possible answer choices carefully . Choose the single BEST response for each item. Fill in the appropriate bubble on your UCD2000 scantron answer sheet with a No.2 pencil. 1. When research procedures result in undesirable consequences for an individual participant, the researcher must A) abandon the research project. B) correct any short-term or long-term consequences. C) inform the participant of undesirable consequences before moving on to the next stage of the study. D) any or all of the above 2. The confounding variable hypothesis suggests A) differences are due to the independent variable. B) statistically significant differences may be due to extraneous variables. C) the null hypothesis is rejected. D) causality can be inferred at the differential level of constraint. 3. _____ validity refers to how well the study's results support the theoretical basis of the research. In other words, do the operational definitions measure the variables being tested. A) Internal B) External C) Construct D) Statistical 4. If we wish to apply results of a study to a wider population, the type of validity that we would be concerned about would be A) statistical validity. B) internal validity. C) external valdity. D) construct validity. 5. Researchers must always be concerned with confounding variables but they must be particularly aware of _________ when conducting research with growing children. A) maturational changes B) statistical errors C) regression to the mean D) sampling bias 6. During a research study it becomes apparent that the procedures being used are causing differential drop out rates. This creates the possibility of confounding due to A) sequence effects. B) diffusion of treatment. C) selection variability. D) attrition.

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7. What is the major purpose of controls in research? A) to produce research hypotheses when combined with problem statements B) to generate initial ideas C) to counteract threats to validity D) to increase participants' willingness to be involved 8. Dr. Firstly conducts a study on the effect of stress on adolescents. Dr. Secondly decides to replicate this study using the same operational definitions and procedures but testing adults. This will be an example of A) exact replication. B) construct replication. C) systematic replication. D) statistical replication. 9. In a single-blind study A) only the experimental group is blind to their assignment. B) the person testing the participants is blind to the hypothesis and assignment of participants to conditions. C)
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exam3b-answerkey - PSC 41 Fall 2007 Exam 3 FORM B Name ID...

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