Variables in the Evidence-Based Practices

Running head: THE USE OF METHAMPHETAMINE AND OBESITY 1
Variables in the Evidence-Based Practices
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THE USE OF METHAMPHETAMINE AND OBESITY 2
Definitions of variable and Covariates in the Study
Most research studies involve the identification of both independent and dependent
variables for effective data analysis and evaluation based on the available resources and
evidence. In research practice, independent variables are components that are changed and
controlled by scientific experiments undertaken to determine the efficacy of the research
analytics (Grove, & Gray, 2018). Examples of independent variables in the research include
methamphetamine drug. Methamphetamine is one of the illicit substances that acts as a
stimulant to the central nervous system. Being a CNS stimulant, methamphetamine affects
the normal physiological functions of the users. In this case, the height of an individual is
constant and cannot be altered through scientific analysis. Body weight and height of a
person determine his/her Body Mass Index (BMI), therefore, confirming that the independent
variables affect the dependent variables in the research. The age and gender of the selected
population cannot be changed through scientific analysis.
On the other hand, a dependent variables are those components that result after the
scientific testing has been terminated. The dependent variable is affected by the
measurements taken during the actual research (Barry, Clarke & Petry, 2010). The dependent
variables used in the study differ depending on the participants of the study. Body Mass Index
is the ratio of height squire on meters to the body weight in kilogram. For instance, Body Mass
Index (BMI) depend on body weight and height. The mathematical calculation of the BMI of
the people relies on the accuracy of the analytical devices. The evaluation of the dependent
variables forms a critical component in the analysis of the study results and potential limitations
(Gearhardt et al, 2018).
Covariates are continuous variables that are not controlled by manipulation that
occurs during data analytics (Eliason et al, 2014). The application of covariates is important

THE USE OF METHAMPHETAMINE AND OBESITY 3
in a research study because they help in avoiding assumptions that normally occur as a result
of the use of randomized data for analysis and evaluation, therefore, ensuring quality results.
The covariates are neighter and independent variable nor a dependent variables, but they are
important in linking the two type of variable to establish a strong data analytical operation.
For example, the measure of the size of the geographical region in which the study is
undertaken is the main covariate in this case. Another covariate in the study is the sexual
orientation of the sample population.
Socio-behavioral practices are ethical values and norms that determine the wellbeing
of people in society. Social values shape the behaviors of people, therefore, developing
morals and positive living. Irresponsible social practices have negative impacts on the
behavior of people, therefore, affecting the interaction of the people. Another complex term
used in the cohort study is a centrally planned economy. The centrally planned economy is a
type of economic system in which the public is in control of all resources, therefore, the
allocation and utilization of the resources determined by the government (Flentje, Heck &
Sorensen, 2015). Intergenerational mobility is another term with several meanings utilized in
the study. This term refers to a phenomenon in which the social status is vertically changed
from one generation to another.
Assumptions of the Study
Assumptions are part of the components of a study. First, the statistical report that
there is no close relationship between Body Mass Index (BMI) and methamphetamine is an
assumption. This statement is not true because other reviews done on some peer-reviewed
literature have shown a close relation of the BMI and the methamphetamine use. Prolonged
use of Methamphetamine leads to addiction. Most of the methamphetamine addicts have are
overweight; therefore, their BMI measurements are above the normal values (Gonzales,