EEG Equipment For High Schoolers? I am doing a research project for school, and I'm trying to investigate the effectiveness of inhaling lavender oil in reducing anxiety.

I plan to measure the strength of alpha wave activities, as it seems to be commonly accepted as an index for the level of relaxation/anxiety.  I may also measure the strength of gamma activity at the T3 location, for Oathes et al. have suggested that the increase in gamma power in that location is associated with worrying (https://dx.doi.org/10.1016%2Fj.biopsycho.2008.04.005).

(That being said, I know very little about EEG research and will ask about the details of conducting one in another post because this post is about the equipment)

We are in a high school, though a fairly well-resourced one, so our budget isn't too big.  Ideally, I would like to obtain a research-grade EEG headset plus the related equipment (e.g. A/D converter) under 1000 dollars, at most 2000 dollars.

So, what are some brands and models that might be suitable for my situation?

Thanks

Edit:

I think I might as well ask about the process of analyzing the raw signals here.  I've done some searching online, and many people recommended using EEGLAB, a toolbox for MATLAB.  So I plan to purchase a MATLAB student license and install the free toolbox.  Is that a good idea?  If so, do you have any recommendations for resources that I can use to learn about using this tool for data analysis?
EEG systems are quite expensive and are far out of the budget you have outlined. There are four points to be made on this matter:  


The most basic "set" I could find produced by Biosemi costs $11,000 and this set doesn't include the caps and bands (electrodes) required for collecting data. 
It is also important that the location of this system be in a soundproof and electromagnetic safe room to ensure there is little interference in data collection.
There is quite a lot of training required to properly conduct an EEG study and to test participants in a safe and ethical manner. 
Analyzing raw EEG data is also not a simple feat. The level of statistics understanding and software knowledge required for this type of analysis is not usually obtained until graduate-level studies.    


As an aside, I am not sure that the question you have is worth the resources needed to test via EEG. For high school level research it would be best to conduct a behavioural study to measure the effects of lavender oil inhalation on anxiety symptoms. There are many available behavioural measures of anxiety that have been tried and tested in the scientific community. It is standard practice to begin with behavioural measures before moving to physiological measures. 



Please note, there is great value in replicating studies. The scientific community often feels pressured to produce novel findings, as new and exciting results may lead to fame and a bigger pay cheque. It is paramount to scientific progress to replicate previous findings as often times novel findings are never replicated and therefore never subjected to "fact checking" (and could therefore not be replicable in the first place,  fluke findings do occur). Progress can only be made if we are constantly questioning what we think is right. It would be advisable for a high school level researcher to find a study related to the topic you are interested in and to replicate the methods used in that study in an attempt to find the same results as the original authors. Not only would this be more accessible to you at this level of education, but it will teach you valuable research skills and help improve your understanding of the questions you have.