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5 Written questions

5 Matching questions

  1. history:
  2. placebo control groups
  3. analysis of covariance
  4. Hawthorne effect
  5. descriptive studies
  1. a this tests the main and interaction effects of categorical variables on a continuous dependent variable, controlling for the effects of selected other continuous variables that covary with the dependent variable
  2. b random selection, random assignment
  3. c participants are given a treatment unrelated to the real treatment
  4. d describe an existing phenomenon by using members to characterize individuals or groups
  5. e refers to the change in performance caused by the mere presence of others watching.

5 Multiple choice questions

  1. unpredictable fluctuations in instruments, participants, or conditions
  2. a randomization process that is usually done after the research participants are selected to determine which participants will receive which value of the independent variable
  3. participants receive no treatment at all
  4. or random sampling, is the process of drawing a research sample in which each member of a population has an equal chance ob being selected
  5. omitting extreme scores, randomization

5 True/False questions

  1. nonexperimental designused to describe participant characteristics or behaviors and do not involve the application of any treatment to participants


  2. criterion-related evidenceis used to determine validity by comparing the instrument used in the study with another instrument or form of assessment presumed to measure the same variable. Two forms of criterion-related validity are predictive and concurrent.


  3. Selection:random selection, random assignment


  4. What are the 4 ways to minimize threats to validity?refer to the potential for a treatment protocol to have an effect based on the characteristics of the participant rather than those of the group as a whole


  5. quasi-experimental designcan be used to make cause-effect determinations


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