Problem Solving Flashcards
What is a problem?
A problem occurs when there is an obstacle between a present stage and a goal and it is not immediately obvious how to get around the obstacle.
Well-defined problems
Usually have a correct answer, and applying certain procedures leads to a solution eg math problems.
Ill-defined problems
Occur frequently, do not necessarily have one ‘correct’ answer.
Solution is often unclear.
Eg social problems.
Gestalt approach to solving problems
Representing the problem in our mind.
Solving a problem involves a reorganisation or restructuring of that representation.
Insight - solving a problem
Gestalt psychologists introduced the idea that restructuring is associated with insight - the sudden realisation of a problem’s solution.
Sudden understanding that assists in solving the problem.
Fixation
One of the major obstacles to problem solving.
Is people’s tendency to focus on a specific characteristic of the problem that keeps them from arriving at a solution.
Functional fixed ness
Restricting the use of an object by only focusing on its usual uses
Eg candle problem and two strings problem.
Mental set
A preconceived notion about how to approach a problem, which is determine by a person’s experience or what has worked in the past.
Sometimes useful and sometimes is an obstacle itself.
Obstacles to problem solving
Irrelevant or misleading information: when problem are complex it becomes easier for us to focus on misleading or irrelevant information.
Information-processing approach to problem solving
Newell and Simon: problem solving involves a search.
Saw problems in terms of an initial state (conditions at the beginning of the problem), and a goal state (the solution of the problem).
Intermediate state involves an action towards the goal (steps to solving a problem).
Operators
Actions that take the problem from one state to another.
Rules which specify which moves are allowed and which are not.
Problem space
The initial state, goal state, and all possible intermediate states for a particular problem make up the problem space.
Means-end analysis
The primary goal is to reduce the differences between the initial and goal states.
This is achieved by creating subgoals - intermediate states that are closer to the goal.
Importance of how a problem is expressed
How a problem is stated can affect its difficulty.
Mutilated checkerboard problem (Russian marriage problem).
Think-aloud protocol
Participants vocalise their thoughts while problem solving.
Allows better understanding of subjects thought processes.