Chapter 12 Flashcards
What is a problem?
occurs when there is an obstacle between a present state and a goal, and it is not immediately obvious how to get around the obstacle.
A problem is difficult and the solution is not immediately obvious.
What is the gestalt approach?
problem solving as representation and restructuring.
Representing a problem in the mind:
The success in solving a problem is influenced by how it is represented in the person’s mind.
We have to perceive an object and then present it in a different way → restructuring.
Crossword puzzles: Focusing on one small part at a time, focusing on horizontal words first, pick a corner of the puzzle.
what is problem solving?
how people represent the problem in their mind, and how solving a problem involves a reorganization or restructuring of this representation.
What is insight?
sudden realization of a problem’s solution
What was the Metcalfe and weibe experiment?
experiment used to compare experiences of solving insight and non-insight problems.
Insight → participants should not be good at predicting how near they are to a solution.
Noninsight → step-by-step process, know when they are getting closer to a solution.
Experiment results → noninsight came closer to the solution on a more gradual scale.
What is an obstacle to problem solving?
Fixation
What is fixation?
people’s tendency to focus on a specific characteristic of the problem that keeps them from arriving at a solution.
What is functional fixedness?
Focusing solely on familiar functions or uses of an object to solve a problem.
What is the Duncker experiment?
1 group with boxes containing materials and the other with the boxes and materials separate. Group with boxes as containers found it more difficult to solve the problem as the other group.
Seeing the boxes as containers limits you to only seeing them as so and not as materials you can use to your advantage.
What is the two string problem?
tie two strings together that are hanging from the ceiling (strings are too far apart to be able to reach one of them while holding the other)
Objects available were pliers and a chair.
Scientist walked in after a while and played with pliers/ moved the string
Participants solved the problem by using pliers to help swing the string and catch it while holding the other string.
People usually think of using pliers as a tool and not a pendulum.
What is the commonality between the Duncker experiment and the two string problem?
Both problems are difficult because of people’s preconceptions about the uses of objects.
What are preconceptions?
a mental set, a preconceived notion about how to approach a problem.
Determined by a person’s experience or what has worked in the past.
what is the water jug problem?
Participants have to figure out how to obtain a required volume of water with three empty jars.
Provided the solution and presented another similar problem.
The other problem could not be solved using the same solution as the previous problem, but participants kept on using the previous solution because it had worked before.
What is the Newell and Simon approach of problem solving?
Problems are seen in terms of an initial state, and a goal state
initial state
conditions at the beginning of the problem
Goal state
Solution of the problem
Operators
actions t hat take the problem from one state to another
Intermediate state
Each action taken creates a state between the initial and the goal states.
Problem space
All the states that much up the problem
Means-end analysis
reduce the difference between the initial and goal states. Achieved by creating subgoals