Predictors of the Transition From Experimental to Data Analysis Chapter

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Predictors of the Transition From Experimental to Daily Smoking Among Adolescents in the United States

By reviewing the methodology and analysis sections of the study, I discovered that the quantitative method used was a complex sampling design with restricted-use data. The authors of the study used data from the National Longitudinal Study of Adolescent Health as their focus, so they had the opportunity to study a large amount of data without being required to collect it from survey participants or interviews (Park, Weaver, & Romer, 2009). Examined were strata at the individual student level and schools as clusters, as well as the subjects and their unique selection criteria (Park, Weaver, & Romer, 2009). There were 134 schools and 90,000 students participating. Each of those students filled out a 45-minute questionnaire regarding expectations for the future, their friendships, and their health (Park, Weaver, & Romer, 2009).

I found that the covariates, which were demographics, PBT-related, and non-theory related factors, were measured at the baseline (Park, Weaver, & Romer, 2009). These were then used to be predictive of the smoking status that would be seen in these individuals at the end of the first year they were followed (Park, Weaver, & Romer, 2009). The smokers who were selected as the sample were between 12 and 18 years old, and where experimental smokers when they were selected for the baseline (Park, Weaver, & Romer, 2009).

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Only those who also provided outcome information at the end of the first year were able to be included, as that outcome data was critical to the determination of the study (Park, Weaver, & Romer,

Otherwise the analysis could have not used the multiple imputation procedure that was expected for this study. The study ended up with 4,903 smokers at baseline (Park, Weaver, & Romer, Males were 48% of the sample, with more than 52% of them classifying themselves as white or Caucasian (Park, Weaver, & Romer, For the definitions of smokers -- experimental and daily -- CDC guidelines were used. Those who smoked cigarettes "all 30 days" in the past 30 days in the collection of year one data were considered daily smokers, with others being considered only experimental smokers (Park, Weaver, & Romer, Many factors were measured, including religion, self-esteem, friendships, connectedness to family, and marijuana use, along with exercise, seatbelt use, and grade point average (Park, Weaver, & Romer, These factors were theory-related, and there were also non-theory related factors addressed.

Specific Steps Used for the Analysis

I discovered that there were specific steps used for the quantitative data analysis in this study. These began with the design of the complex sampling. SAS Version 9.13 was used to actually analyze the data (Park, Weaver, & Romer, The smokers at year one were studied to see whether they were experimental.....

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