Smoker’s IQ A study was conducted in which 2011 1 8-year-old Israeli male military recruits were given an exam to measure IQ. In addition, the recruits were asked to disclose their smoking status. An individual was considered a smoker if he smoked at least one cigarette per day. The goal of the study was to determine whether adolescents aged 18 to 21 who smoke have a lower IQ than nonsmokers. It was found that the average IQ of the smokers was 94, while the average IQ of the nonsmokers was 101. The researchers concluded that lower IQ individuals are more likely to choose to smoke, not that smoking makes people less intelligent. Source: Welser, M., Zarka, S., Werbeloff, N., Kravltz, E. and Lubin, G. (2010). “Congnitive Test Scores in Male Adolescent Cigarette Smokers Compared to Non-smokers: A Population-Based Study.” Addiction. 105:358–303. dol:10.1111/). 1360–0443.2000.02740.x) a. What is the research objective? b. What is the population being studied? What is the sample? c. What are the descriptive statistics ? d. What are the conclusions of the study?
Smoker’s IQ A study was conducted in which 2011 1 8-year-old Israeli male military recruits were given an exam to measure IQ. In addition, the recruits were asked to disclose their smoking status. An individual was considered a smoker if he smoked at least one cigarette per day. The goal of the study was to determine whether adolescents aged 18 to 21 who smoke have a lower IQ than nonsmokers. It was found that the average IQ of the smokers was 94, while the average IQ of the nonsmokers was 101. The researchers concluded that lower IQ individuals are more likely to choose to smoke, not that smoking makes people less intelligent. Source: Welser, M., Zarka, S., Werbeloff, N., Kravltz, E. and Lubin, G. (2010). “Congnitive Test Scores in Male Adolescent Cigarette Smokers Compared to Non-smokers: A Population-Based Study.” Addiction. 105:358–303. dol:10.1111/). 1360–0443.2000.02740.x) a. What is the research objective? b. What is the population being studied? What is the sample? c. What are the descriptive statistics ? d. What are the conclusions of the study?
Smoker’s IQ A study was conducted in which 2011 18-year-old Israeli male military recruits were given an exam to measure IQ. In addition, the recruits were asked to disclose their smoking status. An individual was considered a smoker if he smoked at least one cigarette per day. The goal of the study was to determine whether adolescents aged 18 to 21 who smoke have a lower IQ than nonsmokers. It was found that the average IQ of the smokers was 94, while the average IQ of the nonsmokers was 101. The researchers concluded that lower IQ individuals are more likely to choose to smoke, not that smoking makes people less intelligent.
Source: Welser, M., Zarka, S., Werbeloff, N., Kravltz, E. and Lubin, G. (2010). “Congnitive Test Scores in Male Adolescent Cigarette Smokers Compared to Non-smokers: A Population-Based Study.” Addiction. 105:358–303. dol:10.1111/). 1360–0443.2000.02740.x)
a. What is the research objective?
b. What is the population being studied? What is the sample?
c. What are the descriptive statistics?
d. What are the conclusions of the study?
Statistics that help describe, summarize, and present information extracted from data. Descriptive statistics include concepts related to measures of central tendency, measures of variability, measures of frequency, shape of distribution, and some data visualization techniques/tools such as pivot tables, charts, and graphs.
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