Chapter 12: Problem-solving and Creativity Flashcards
Occurs when there is an obstacle between a present state and a goal and it is not immediately obvious how to get around that obstacle
Problem
What two things does problem solving involve according to the Gestalt psychologists?
How people represent a problem in their mind
How solving a problem involves a reorganization or restructuring of this representation (in the mind)
Changing the representation of a problem to have better chances of solving it
Restructuring
Sudden comprehension, realization, or problem solution that involves a reorganization (restructuring) of a person’s mental representation of a stimulus, situation, or event to yield an interpretation that was not initially obvious
Insight
Describe the experiment aiming to distinguish between insight problems and non-insight problems
Used algebra problems for non insight and triangle/chain problems for insight participants
After every 15 seconds , participants needed to rate how close they think they were to solving the problem
Found that people doing insight problems would have a sudden jump in ratings when they were close to solving the problem and eventually did (therefore insights occur suddenly aka and “aha” experience)
People’s tendency to focus on a specific characteristic of the problem that keeps them from arriving at a solution
Fixation
Type of fixation that works against solving a problem
Functional fixedness
Describe the candle problem
When participants were given a couple of objects and were asked how they would mount a candle on the corkboard so it would burn without dripping wax on the floor
Had 2 groups ; one were given a matchbox that was empty and the other was given a matchbox that was full
Those who had empty matchboxes solved the problem quicker because they realized that it could be used as a stand on the corkboard (other group saw boxes as containers so they had a functional fixedness that did not allow them to solve the problem as easily)
Describe the two-string problem
Participants’ task was to tie together two strings that were hanging from the ceiling. This was difficult because the strings were so far apart that it was impossible to reach one of them while holding the other
There were pliers that were used to create a pendulum to solve the problem in order for the person to reach the other string
Preconceived notion about how to approach a problem, which is determined by a person’s experience of what has worked in the past
Mental set
Describe the water jug problem
Task was to figure out on paper how to obtain a required volume of water, given three empty jars for measures, three jugs had the following capacities: A=21 quarts, B=127 quarts,C= 3 quarts, and the desired volume was 100 quarts. A solution was given which allowed the participants to do a couple of problems easily.
Mental set grp ; problem 1 presented first with solution where problems 7 – 8 were worked up to
No mental set grp; presented with problems 7 – 8 where they worked towards problem 1
Found that the no mental set group found simpler solutions than those in the mental set group .
Explain how mental sets influence problem solving
Mental set can influence problem solving both because of preconceptions about the functions of an object (candle and two-string problems) and because of preconceptions about the way to solve a problem (water jug problem)
What did Newell and Simon demonstrate to be the case with problem-solving?
People solve problems stepwise rather than using subgoals
Actions that take the problem from one state to another
Operators
Sequences of choices of steps
Intermediate state
All possible states that could occur when solving the problem
Problem space
A way of solving the problem where the goal is to reduce the difference between initial and goal states, assisted with subgoals
Means end analysis
Small goals that help create intermediate states that are closer to the goal.
Subgoals
Describe the Tower of Hanoi problem
Initial state: 3 discs stacked on the left peg
Intermediate states: since there are numerous ways to move the disks, you chose moving the disks in an order that makes it more efficient to get to the goal state
Goal state: 3 discs stacked on the right peg
Operators: moving the disc to another peg
Problem state: all possible combinations of moving the disks that can lead to the goal state