<p>Without further ado, here is Vihsadas's Personal MCAT Strategy (err...mostly, I think.):</p>
<p>1) Your individual scores and composite score:
PS: 15
BS: 14
VR: 11
WS: S
Composite MCAT: 40S</p>
<p>2) The study method used for each section</p>
<p>As a general note, practice will always be the most important part of your MCAT preparation for any section. You should make time to do as many practice exams as you possibly can and to do practice problems as you are doing your content review. For the MCAT, you need to become comfortable with the testing format, the types of questions, and the manner in which concepts and information is tested. Being familiar with these aspects of the exam can only come through long and thorough practice of MCAT material. If you are diligent and really put forth maximal effort into practicing the material, you will start to gain an intuition about MCAT questions, and how to approach them. Accordingly, the number one mistake made by MCAT studiers is to only review the material in great depth, and to neglect actually taking timed, full-length practice MCAT exams. In fact, you must do both.</p>
<p>PS:
Understanding Concepts and Developing an Intuition The best way to approach this section is to be extremely curious about the concepts presented. When you are reviewing a particular concept you should constantly be asking yourself WHY? Doing so will refocus your thought process from one of memorization to one of understanding. In fact, you must understand why all of the equations are the way they are, and why they make logical sense. One way to facilitate this process is to try and work through what you think should happen without worrying about the numbers at first. Often, students have memorized an equation and will just settle for plugging values into an equation in order to try and arrive at an answer. Unfortunately, this process often bogs the student down in number crunching at the expense of understanding what is actually going on. The latter is extremely important for the MCAT.
Thus, when you are doing physics and chemistry problems, the first thing you should do is think about the general result you would expect from the situation given. Only when you have understood what should happen conceptually, should you begin number crunching. For instance, if you are dealing with an acid base buffer problem and the question asks, What will the pH be after I add X amount of Y substance?, the first thing you should do is ask yourself, Would I expect the pH to increase a little or a lot, stay the same, or decrease a little or a lot? Once you think through the concepts, youll be more confident in your numerical answer as well as have an understanding of why your numerical answer is correct. After all, the MCAT is a thinking test. If you do not understand the concepts you simply will not be able to confidently answer a fair number of problems on the real exam. That being said, even though I have stressed the importance of concepts, you still must also know all of the relevant equations, and be comfortable with manipulating those equations. Both concept understanding and skill in formula manipulation are necessary for success on the MCAT PS.</p>
<p>Additional Note: When we say we are doing "Content Review" in terms of PS, this includes doing practice problems along with your content review to absorb the material. For physics and chemistry, an integral part of learning to understand the material is to work through problems to make the logical process more concrete in your mind. Thus, do sectional tests, practice problems and practice passage (but not timed, full lengths!) when studying.</p>
<p>Learning to be Highly Proficient with Simple Math This is a point that is grossly overlooked both by students themselves and test prep companies. In my opinion, the most important factor that separates the average speed test taker from one who can finish the PS section with 10-20mins remaining is the ease at which the latter uses estimation methods, tricks with formula manipulation, and answer elimination techniques to reduce the amount of scratch work necessary to complete a problem. On my real exam, I used no more than ¼ a single-sided page for scratch work on the PS. Because I was intensely comfortable with order of magnitude estimation, decimal estimation, log estimation, dimensional analysis and conceptual knowledge I could eliminate answer without too much written math. Sure, you could use the formulas to explicitly solve each problem, but using estimation along with formula manipulation will save you whole minutes on the real exam. In previous posts I have highlighted one example of this:
Estimation trick for pH and log calculations</p>
<p>In addition, you must be completely comfortable with orders of magnitude estimation. You should be able to figure out just from estimation what the order of magnitude of the answer should be. This will aid you in eliminating one or two answers right away. One way to start to get good at this is to treat every number in scientific notation:
If X = n x 10^-4 and Y = p x 10^8, then Y/X = (p/n)x 10^(8 + 4).
You must be completely fluent in order of magnitude manipulation like this. Definitely practice it. </p>
<p>You should also become familiar with estimating the decimal values of weird looking fractions and the fractional values of weird looking decimals. For instance, .3145/.6021 might look difficult, but its approximately = ½. This kind of estimation is usually sufficient for the MCAT, and GREATLY simplifies the manipulation of formulas and numerical calculations.</p>
<p>Dimensional Analysis Using the units of physical quantities to your advantage is also often grossly overlooked by students. One way to check your math is to manipulate the units of the quantities you are using while you are manipulating the math.
The following post sufficiently explains one very MCAT relevant way of how you should be able to use dimensional analysis on the PS section of the MCAT:
An example of how dimensional analysis can really save you one the MCAT.</p>
<p>An additional way dimensional analysis can be helpful is if you forget the formula for something. Lets say that you forgot that one of the formulas for electric potential (Volts) is Volts = Electric field * distance. Lets say that you know that Voltage is expressed in Joules/Coulomb and Electric field is Newtons/Coulomb. Then, you remember that Work (Joules) = Force (Newtons) * Distance (meters). Therefore, if I multiply Newtons/Coulomb * Distance I get Joules/Coulomb, which is the correct units for electric potential. Usually, this trick will lead you to the right answer!
A word of warning, however, about this last point: Sometimes there will be an extra constant factor needed to arrive at the correct answer. Therefore, only use this technique when you really forget the correct formula and be wary for extra constants! Example:
Lets say that you know the units of energy are [E] ~ kgm^2/s^2. Knowing that, it would be reasonable to guess that one correct formula for energy would be E = mass<em>velocity^2. Afterall, mass</em>velocity^2 has the correct units
but because of how the formula for energy was derived, energy, as you know, is actually = ½ mass*velocity^2.
So while this particular trick with dimensional analysis can be useful, you must not rely on it.</p>