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Published byOscar Kelley Modified over 9 years ago
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Marion Hughes Sociology 391 Spring 2011
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Q. 110: How many days out of the past 30 have you used marijuana? 0 1-5 6-10 11-15 16-20 21+ Recoded into 3 ordinal categories: 0 1-5 6 +
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Q14. Please indicate the range that best categorizes your current cumulative grade point average. Don’t have one 2.50 or less 2.51 – 2.67 2.68 – 3.50 3.51 or higher Recoded into three ordinal categories: 2.67 or less 2.68 – 3.50 3.51 or higher
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Students who use marijuana will have lower GPAs than students who do not. The frequency of marijuana use is negatively related to cumulative grade point average.
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X 2 = 2.177, df = 4, p <.703
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No statistically significant relationship between marijuana use and GPA My hypothesis is not supported
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Q. 204. What is your sex? female male Hypothesis: Controlling for sex, the frequency of marijuana use is negatively related to cumulative grade point average.
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X 2 = 10.910, df =4, p <.028 Cramer’s V =.235
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Moderately strong, statistically significant relationship between marijuana use and GPA However, my hypothesis is not supported The occasional users (1-5 times a month) have the lowest GPAs 17.3% more of the women who used 6+ times last month have GPAs above 3.5 than women who never used
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X 2 = 3.023, df = 4, p <.554
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No statistically significant relationship Hypothesis not supported
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Hypothesis not supported by the data Specification: significant relationship only exists for women, although not in the predicted direction
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Shortcomings: time order of variables Further research Legalization of marijuana
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