Exercise 2

Sampling Procedures

I will select the teachers in each age group for the survey by stratified random sampling. Hawkins County Schools operates nineteen schools and employs three hundred seventy four teachers total. Of these teachers one hundred sixty eight are elementary, one hundred ten are intermediate, and ninety six are high school. I will sample 5 teachers from each of the three age groups. This is a disproportionate stratified sample but in this study it makes sense given the student teacher ratio increases per age group and therefore the representation of the teachers would be for similar student numbers. I will list the teachers in alphabetical order by age group and blind draw five numbers per age group to identify those teachers who would receive a survey.

The survey will be a six question survey conducted by using an online survey, (such as Survey Monkey). The survey will be voluntary and the participants will be given, prior to participation, information that they are not obliged to participate, that they can choose not to participate at any time, detailed information about the purpose of this study, and informed that the information gathered will be collected anonymously and kept confidential. This will be conveyed through an informed consent form. Participants in this survey will not be compensated.

Measures and covariates

The data collected by Hawkins County Schools includes descriptions of nutritional programs, the dates implemented, costs of implementation, and number of students who participated. The academic data collected includes detailed analysis of math, reading, writing, science, and social studies scores on Tennessee standardized tests. The data also includes graduation and dropout rates of students. There is also information of student health data collected in connection to the nutrition initiatives. 7,825 students were screened for height, weight, blood pressure, hearing, and vision.

Although all of these variables and data are...