1. Samuel Stouffer discovered that the greatest source of error or bias in the scientific use of surveys is:1 Based on his study of how Watson and Crick discovered the structure of DNA and how Darwin developed the theory of evolution, Robert Weisberg concluded that:
2. People who commit suicide sometimes leave notes. A researcher analyzed the contents of suicide notes in order to explain why people commit suicide. This study has the flaw of __________.
3. In _____________, a sample is selected from the list of population members by randomly selecting the first subject and then selecting the other members of the sample according to a prearranged scheme—by taking, say, every 5th, 1Oth, or 20th person on the list, until the sample is complete.
4. Whenever a researcher schedules a treatment following high or low scores on the dependent measure or selects subjects based upon extreme scores he should be concerned with the threat to internal validity of __________.
5. Probability sampling and methods of survey administration contribute __________ error compared to question wording.
6. __________ measures have zero reactivity.
7. A researcher conducts a week of daily observations of depressive behavior in a group of bipolar patients. She then implements drug treatment for one week, continuing her observations. In the third week she removes the drug treatment, and in the fourth week she administers the drug again. This researcher is using a __________ design.
8. The OXO design applied to group data is called the:
9. Which of the following is NOT a serious threat to validity of the pretest-posttest one-group design, O X O, is ___________.
10. The problem with telephone interviews is that __________.
11. Mail surveys are associated with __________ while face-to-face surveys are associated with __________.
12. Footprints, fingerprints, patterns of blood spatter, DNA from blood samples, and fiber traces used by forensic experts to reconstruct a crime are:
