Each problem describes a research situation and the data it produces. Identify the statistical procedure or test that is appropriate for the data. Choose whether the problem requires one of the following: Descriptive statistics (Mean, Standard Deviations, Percentiles), one-sample t test, Independent-measures t test, Independent-measures ANOVAs (One-factor or Two-factor), Repeated-measures ANOVA, Linear Regression, Chi-Square Goodness-of-fit, Chi-Square Test of independence. 1) A researcher investigated different combinations of temperature and humidity to examine how heat affects performance. The researcher compared three temperature conditions (70º, 80º, and 90º) with a high humidity and a low humidity condition for each temperature. A separate group of participants was tested in each of the six different conditions. For each participant, the researcher recorded the number of errors on a problem-solving task. The researcher would like to know how different combinations of temperature and humidity influence performance. 2) A researcher is investigating the relationship between personality and birth order position. A sample of college students is classified into four birth-order categories (1st, 2nd, 3rd, 4th or later) and classified as being either extroverted or introverted. 3) A survey of female high school seniors includes one question asking for the amount of time spent on clothes, hair, and makeup each morning before school. The researcher plans to use the results as part of a general description of today’s high school students.
Each problem describes a research situation and the data it produces. Identify the statistical procedure or test that is appropriate for the data.
Choose whether the problem requires one of the following:
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1) A researcher investigated different combinations of temperature and humidity to examine how heat affects performance. The researcher compared three temperature conditions (70º, 80º, and 90º) with a high humidity and a low humidity condition for each temperature. A separate group of participants was tested in each of the six different conditions. For each participant, the researcher recorded the number of errors on a problem-solving task. The researcher would like to know how different combinations of temperature and humidity influence performance. |
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2) A researcher is investigating the relationship between personality and birth order position. A sample of college students is classified into four birth-order categories (1st, 2nd, 3rd, 4th or later) and classified as being either extroverted or introverted. |
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3) A survey of female high school seniors includes one question asking for the amount of time spent on clothes, hair, and makeup each morning before school. The researcher plans to use the results as part of a general description of today’s high school students. |
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