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5 Written questions

5 Matching questions

  1. experimental design
  2. statistical regression
  3. correlational research design
  4. survey research
  5. interview
  1. a can be used to make cause-effect determinations
  2. b used to investigate the relationship among two or more variables without attempting to manipulate them
  3. c questions are asked in person
  4. d describes the characteristics of a population by selecting a representative sample of respondents to research
  5. e omitting extreme scores, randomization

5 Multiple choice questions

  1. includes a variety of different types of evidence supporting the characteristic being measured. Three common ways to measure construct-related validity include using a clearly defined variable, hypotheses based on theory to explain the variable, and logical and empirically tested hypotheses.
  2. random selection, random assignment
  3. 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
  4. 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. 1. Standardize the conditions in which the study occurs.
    2. Know the characteristics of the participants in the study
    3. Know the details of the study, such as where, when, and the extraneous events that may occur
    4. Plan and chose a suitable design

5 True/False questions

  1. random errorunpredictable fluctuations in instruments, participants, or conditions


  2. descriptive studiesdescribe an existing phenomenon by using members to characterize individuals or groups


  3. internal validitya researcher's ability to determine whether a causal relationship exists between the independent variable and the dependent variable.


  4. experimenter biascan be used to make cause-effect determinations


  5. Placebo effectsrefers to the change in performance caused by the mere presence of others watching.