Problem Solving Flashcards
When does a problem occur?
When there is an obstacle between a present state and a goal, and it is not immediately obvious how to get around the obstacle.
What was problem solving for Gestalt psychologists about? (2)
How people represent a problem in their mind, and how solving a problem involves a reorganisation or restructuring of his representation.
According to the Gestalt approach, success in solving a problem is influenced by what?
How it is represented in a person’s mind.
What is restructuring?
What the Gestalt psychologists called the process of changing the problems’s representation.
What is restructuring associated with?
Insight.
Define insight.
The sudden realisation of a problem’s solution.
What kind of experiment did Metcalfe and Wiebe perform?
One to distinguish between insight and noninsight problems.
One of the major obstacles to problem solving, according to the Gestalt psychologists, is:
Fixation.
Define fixation.
People’s tendency to focus on a specific characteristic of the problem that keeps them from arriving at a solution.
What type of fixation is functional fixedness?
Where focusing on familiar functions or uses of an object works against solving a problem.
Who first described the candle problem?
Duncker.
What is the candle problem an example of?
Functional fixedness.
Explain the candle problem.
Participants are given candles, a matchbox containing matches, and thumbtacks, and are instructed to find a way to mount a candle on the wall so it will burn without dripping wax on the floor. The solution is to use the matchbox as a container.
What happened in Duncker and Adamson’s candle problem experiments when subjects were given an empty matchbox with the matches separate?
The group with empty boxes found the task easier.
What is Maier’s two string problem an example of?
Functional fixedness.
How was Maier’s interaction with the string an example of Gestalt restructuring?
Once participants saw the strong swinging, insight was triggered and they realised they could use the pliers as a weight and create a pendulum, meaning that they restructured their representation of how to achieve a solution, and the representation of the function of the pliers.
Why are the candle problem and two-string problem difficulty?
Because of people’s preconceptions about the uses of objects.
What are preconceptions about the uses of objects?
A type of mental set.
What is a mental set?
A preconceived notion about how to approach a problem, which is determined by a person’s experience or what has worked in the past.
Give an example of how mental set can arise out of a situation created as a person solves a problem.
Luchins water jug problem.
How did Newell and Simon describe problem solving?
As a search that occurs between the posing of the problem and its solution.
How did Newell and Simon see problems?
As an initial state.
What is the initial state?
Conditions at the beginning of a problem.
What is the goal state?
The solution.
What did Newell and Simon introduce the idea of?
Operators.
Define operators.
Actions that take the problem from one state to another.
According to Newell and Simon, what does each action create?
An intermediate state.
Define Newell and Simon’s problem state.
All the possible intermediate states for a particular problem.
According to Newell and Simon, to solve a problem people have to search the problem space to find a solution, and they proposed that one way to direct the search is to use a strategy called:
Means-end analysis.
What is the primary goal of means-end analysis?
To reduce the difference between the initial and goal states.
How is reduction of the difference between the initial and goal states achieved by means-end analysis?
Sub-goals.
What are subgoals?
Intermediate states that are closer to the goal.
What does the multilated checkerboard problem ask?
If we remove two corner squares of the checkerboard, can we now cover the remaining squares with 31 dominos?
Why, in Kaplan and Simon’s mutilated checkerboard problem, did the subjects in the bread and butter condition solve the problem twice as fast?
Boards that emphasised the difference between adjoining squares found the problem easier, because bread and butter are different but related.
To achieve a better understanding of subject’s thought processes as they were solving the problem, Kaplan and Simon used a technique called:
The think-aloud technique.
What occurs in the think-aloud procedure?
Subjects are asked to say out loud what they are thinking while solving a problem. Not to describe what they are doing, but to verbalise new thoughts as they occur.
Give one goal of think-aloud protocol.
To determine what information the person is attending to while solving a problem.
What does the think-aloud procedure reveal?
The shift in how a person perceives elements of a problem.
What do we call the use of analogy to solve problems?
Analogical problem solving.
Define analogy.
Using the solution to a similar problem to guide solution of a new problem.
Define analogical transfer.
The transfer from one problem to another