Types of Problem Solving – Part 1

Need help preparing for the Psych/Soc section of the MCAT? MedSchoolCoach expert, Ken Tao, will teach you Part 1 about types of problem solving. Watch this video to get all the MCAT study tips you need to do well on the psychology section of the exam!

Problem-solving is the active process of discovering what must be done to achieve a goal that is not readily attainable. There are several different types of problem-solving.

Inducing Structure

One type of problem-solving is inducing structure, which involves a person identifying the relations or patterns between the items in a problem. There are many types of problems that involve inducing structure. An example of an inducing structure problem is series completion, where a number of items in a series are presented in a specific order. These problems typically involve identifying a pattern and determining the next item in the series. For example, consider the series: 1, 2, 3, 9, 4, 5, 6, 6. This series is counting up like 1, 2, 3, 4, 5, 6, and in between these numbers are 9 and 6, which are decreasing by three. Based on this, what comes next in the sequence would be continuing to count up: 7, 8, 9. Then, since 9 and 6 are decreasing by three, the number 3 should come next: 1, 2, 3, 9, 4, 5, 6, 6, 7, 8, 9, 3. Another example is the series: A5E9. The transition from A to E is four letters, and the transition from 5 to 9 is four numbers. The letters and numbers should be expected to continue by 4, so the continued series should read: A5E9I13.

Another type of inducing structure is analogy problems, which involve being given an example of a relationship and then applying it to a new situation or topic. An example of an analogy is, “grocery market is to fruits and vegetables, as pharmacy is to: what?” First, the relationship between a grocery market and fruits and vegetables must be determined. Grocery markets sell fruits and vegetables. Pharmacies sell medication, which would be the answer to the analogy. Another example of an analogy is, “salesperson is to client, as physician is to: what?” Salespersons work with clients, and physicians work with patients, which would be the answer to this analogy.

Arrangement

Another type of problem-solving is arrangement. In problems of arrangement, different objects must be arranged in a specific way to satisfy some criteria. The objects can be arranged in many ways, but only one or a few arrangements form a solution.

An example of an arrangement problem is anagrams. In anagrams, several letters can be rearranged to make a word. For example, K, J, I, C, H, and A can be rearranged to form the word ‘hijack.’ Y, Y, A, A, N, and W can be rearranged to form the word ‘anyway.’ Another example of an arrangement problem is known as The String Problem. Two strings hanging from a ceiling need to be tied together. However, they are so far apart that when a person grabs one string, they are too far away to grab the other. On a table, there is a pair of pliers, and the problem requires determining how to tie the strings together with the given materials.

The solution to this problem is to take the pliers and tie it to one of the strings to create a pendulum. As you’re holding one string, the pliers can swing towards you in the air like a pendulum, allowing you to grab the other string and tie the two strings together. The String Problem demonstrates how the arrangement of objects in a specific way can facilitate problem-solving.

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