2.1.3 Thinking and Decision-making
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Key Definitions:
Decision-making strategy: a specific algorithm that enables one to solve a multi-attribute choice problem
Descriptive models: models of thinking and decision-making that describe how people actually think and make decisions, taking into account irrational factors
Macro-scale models: models that focus on observable actions and their predictors
Micro-scale models: models that focus on the transient process of making a decision (what goes on in a person’s mind when he/she is making a decision)
Multi-attribute problem: a choice problem involving choosing between several alternatives (options) each characterized by several attributes (parameters)
Normative models: models of thinking and decision-making that describe the rules of rational thinking and decision-making
Essential Understanding
Thinking and Decision-making
→ Thinking: cognitive process responsible for modifying previously encoded information
↳ thinkings results in obtaining new information from existing information
→ Decision-making: cognitive process of choosing between given alternatives that involves a choice
→ both are closely connected to make a choice you need to use while thinking
Models of Thinking and Decision-making: Two types of thinking
↳ can be distinguished into two categories: normative and descriptive models
→ Normative: describe thinking the way it should be
→ Descriptive: describe thinking as it is
Theory of Planned Behavior (TPB)
↳ sees decision-making as actions that result form behavioral intentions like attitudes, perceived social norms, and perceived behavioral control
→macro-level theory: looks at visible results of decision-making processes
↳ can be tested to establish its predictive validity: extent of which the combination of variables postulated in the theory actually predicts actual behavior
→ can be seen in Albarracin et al (2001)
Adaptive Decision-maker Framework (Payne, Bettman, Johnson 1993)
↳ micro-level cognitive model→ zooms in on the transient internal process of making a decision
→ choice of strategy has four meta-goals: maximizing decision accuracy; minimizing cognitive effort; minimizing of negative emotion; minimizing the ease of justification
↳ theory claims that factors other than accuracy must be integrated directly into a model of decision-making
→ can be seen in Payne, Bettman, and Johnson (1993)
Normative and Descriptive Models
Normative models
→ describe the “ideal” thinking and decision-making process
Ex: formal logic, statistic theory of probability, normative utility theory
↳ Formal logic describes correct thinking patterns
↳ Statistic theory of probability may be used as a normative model in making predictions
↳ Normative utility theory tells us what is right and wrong in choosing between economically attractive alternatives (define utility with monetary value)
Descriptive models
→ describe the processes of thinking and decision-making that way they actually are
→ this is because it’s impossible for people to use normative models to make every decision: they require too many resources and assumes that we are full informed
→ real-life decisions are made under uncertainty and limited time
↳ psychology focuses on this model because of its prediction of people’s model, despite all their biases and fallacies
Theory of Planned Behavior→ Azjen (1985)
↳key: actions are determined by behavioral intentions which are determined by a number of subjective beliefs
Macro level
→ looks at behavior at a major scale→ on the visible level of whether an action is performed or not
Theory
→ behavioral intention determines effort
↳ the stronger it is, the harder we try to implement the behavior
↳ can be determined by three factors:
→ Attitudes: individual perceptions of the behavior (positive or negative)
→ Subjective norms: perceived social pressure about this behavior (acceptable or unacceptable)
→ Perceived behavioral control: perception of one’s ability to perform the action
→ the theory holds that if your attitude to a particular behavior is positive, then you believe this behavior is socially acceptable and you believe you can do this action→ thus, this creates a behavioral intention
↳ if the behavioral intention is strong enough, the action will be performed
Research
→ requires self-report measures of four predictor variables and one target variable (future behavior itself)
→ predicts that there should be a correlation between attitudes, behavioral control, subjective norms, and behavior to intention
↳ however, behavior should not be significantly directly correlated with attitudes, subjective norms, or perceived control
→ if the theory gives a good fit to empirical data, it should have high predictive validity: four predictor variables collectively should be able to predict the target variable with high probability
Research for TPB
Albarracin et al (2001)→ meta-analysis of TPB as a model for condom use
↳key: TPB fits well into observed behavior in the domain of condom use
Aim: investigate the predictive validity of the theory of planned behavior for people’s decisions to use or not use condoms (to prevent STDs)
Method: meta-analysis
Participants: 42 published and unpublished research papers with a total of 96 data sets
Procedure:
→ data sets from published research were combined into a single large data matrix
↳ this was then used to analyze the fit of the model of planned behavior
Results:
↳ TPB turned out to be a successful predictor of condom use
↳ Correlation of 0.51 between intention and behavior
→ significant correlations between behavioral intentions and norms, attitudes, and perceived control
Conclusion:
→ people are morel= likely to use condoms when they have formed an intention to do so based on attitudes, societal norms, and perceived behavioral control
→ confirms the predictive validity of the TPB in the domain of condom use
Adaptive Decision-Maker Framework (ADMF) Theory→ Payne, Bettman, and Johnson (1993)
↳key: people posses a toolbox of decision-making strategies and the choice is guided by emotion-related goals as well as an attempt to achieve accuracy
Micro level
→ zooms in on the process of making a decision and looks at what’s happening in a person’s mind when he/she is making the decision
→ Example of a Decision-making scenario
↳ model below shows how people make a choice between alternatives against several attributes
Alternatives | Quality of food | Quality of service | Location |
Restaurant 1 | |||
Restaurant 2 | |||
Restaurant 3 |
Strategies in the Toolbox
Strategy | Alternative or attributed-based? | Process |
Weighted additive strategy (WADD) | Alternative | calculate the weight sum (utility) of attributes for each alternative, then choose the one with the highest weighted sum |
Lexicographic strategy (LEX) | Attribute | choose the most important attribute and then the option that has the best value for that attribute |
Satisficing strategy (SAT) | Alternative | determine a cut-off point for every attribute (no less than…)→ find the option that exceeds the cut-off points on all attributes |
Elimination by aspects (EBA) | Attribute | choose the most important attribute and eliminate all options that don’t satisfy your requirements for the attribute →then choose the second most important attribute and eliminate more ↳ continues until only one is left |
→ Alternative-based strategies: (WADD and SAT)
↳ select an alternative and compare attributes within it
↳ emotional tougher because they include trade-offs
→ Attribute-based strategies: (LEX and EBA)
↳ select an attribute and compare alternative against it
Meta-goals
↳ strategy is also guided by four meta-goals, according to the model
Meta-goal | Which Strategy |
Maximizing decision accuracy | WADD |
Minimizing cognitive effort | LEX |
Minimizing the experience of negative emotion | Attribute-based strategies (LEX, EBA) |
maximizing the ease of justification | Depends on context but usually SAT and EBA |
Research for ADMF
Luca, Bettman, and Payne (1997)
↳ key: emotional variables should be directly incorporated into the model
Aim: researchers predicted that if decision-making really adapts to emotion, then people who make choices involving emotionally difficult trade-offs will:
→ process information more extensively
→ choose strategies that allow them to avoid emotionally difficult trade-offs
Method: experiment; independent measures design
Participants: 27 undergraduate students
Procedure:
↳ subjects assumed the role of members of charity and were required to decide which of five candidate children would get financial support
→ each kid was described using five attributes (like living conditions) relevant to the decision-maker model
→ Participants were divided into two groups:
↳ Higher emotion group: participants were told that the other four children were not likely to receive help anywhere else
↳ Lower emotion group: participants were told that the other four children were likely to get help elsewhere
→ Measurement of the DVs was done via “Mouselab”
Mouselab: a software in which presented a table (children and attributes), but the information was hidden and participants and to click the mouse on a cell to reveal the information
↳ recorded the order of how the participants opened the cells
↳ also counted occurrence two types of transitions:
↳ alternative-based transitions (after opening cell A, open a cell for a different attribute but same child)
↳ attribute-based transitions (after opening cell A, open a cell for the same attribute but different child)
Results:
↳ Higher group:
↳ participants spent more time on the task
↳ opened a larger number of cells
↳ engaged more frequently with attribute-based transitions (less emotionally difficult trade-offs)
→ shows that participants were avoiding experiencing negative emotion in the process of making the decision
Conclusion:
→ predictions of the ADMF were confirmed
→ may be concluded that emotional variables need to be directly incorporated into a model of decision-making since the strategies of decision-making are not only influenced by, but directly adapt to, task-related emotion