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In research using a ________ design, two or more samples of respondents answer the same questions at different points in time. [Hint]
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| 2 . |
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A researcher studies the attitudes of citizens toward the governor of their state by sending surveys to the same group of 100 respondents, every month during the governor's term of office. The design employed is [Hint]
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| 3 . |
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Which of the following would be considered an epidemiological research topic? [Hint]
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| 4 . |
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One of the biggest problems faced by researchers who administer surveys is ___________________, which is the failure to obtain responses from individuals that the researchers select for their sample. [Hint]
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| 5 . |
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Most of the survey research done on college campuses utilizes ______________ sampling, where a researcher may collect data from his or her own classes, as the students in these classes are a relative captive audience. [Hint]
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| 6 . |
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In administering a survey assessing family values, Dr. Mannis wants to make sure that he has
a representative sample in terms of ethnic background. He decides to divide his population into groups according to ethnic heritage (i.e., French, German, Polish, African, etc.), and then randomly samples participants from each group in percentages equivalent to the make-up of the population. This procedure can best be described as ______________________. [Hint]
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| 7 . |
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The problem of "misgeneralization" was clearly illustrated by Literary Digest's prediction that Landon would defeat Roosevelt in the 1936 presidential election. Which of the following statements best characterizes the error that was made by the people who conducted the polling? [Hint]
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| 8 . |
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The National Health and Social Life Survey conducted a survey of sexual behavior by partitioning the entire United States into geographical areas, 84 of which were randomly chosen for inclusion in the study. Within each region, a random selection of districts were selected, and within each district, a random sample of households were selected. This method involved [Hint]
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| 9 . |
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Your professor gives you the results of the 40 point test you took last week, and refers you to the board, where you see the following visual representation of the class' performance.
| Class Interval | Frequency | Relative Frequency |
| 1-5 | 0 | 0.0 |
| 6-10 | 0 | 0.0 |
| 11-15 | 4 | 10.0 |
| 16-20 | 4 | 10.0 |
| 21-25 | 0 | 0.0 |
| 26-30 | 8 | 20.0 |
| 31-35 | 20 | 50.0 |
| 36-40 | 8 | 20.0 |
This display is an example of a
[Hint]
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| 10 . |
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The _____________ is the measure of central tendency that identifies the score that most frequently occurs in a data set. [Hint]
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| 11 . |
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The ________________ is the most commonly used measure of central tendency; it is the average score in the data set calculated by summing all scores and then dividing by the number of scores. [Hint]
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| 12 . |
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The ________________ is the most commonly used measure of variability when the intent is to simply describe the variability in original units of the data. [Hint]
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| 13 . |
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The _________ is a standard score that allows researchers to to describe a particular participant's score on some measure relative to the rest of the data. [Hint]
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| 14 . |
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Assuming that scores on many variables of interest are normally distributed, allows us to use the mean ans standard deviation of a data set to estimate the percentage of participants who obrtained certain scores. For instance, for any normally distributed data set, approximately _______ of the scores will fall in the range between 1 standard deviation above and below the mean. [Hint]
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