Methods of Naturalistic Observation and Self-Report in Psychology
Methods
Naturalistic Observation
- Researcher collects information without the participant’s awareness
- Advantages: Researcher does not influence the participant’s behavior, so it may be more representative than if people knew they were being watched
- Disadvantages: Not everything can be observed in its natural environment, expensive
Structured Observation
- Researchers can set up a situation and observe that participant’s behavior
- Advantages: Researcher has more control of the situation and can keep most variables under control
- Disadvantages: Participant is aware of the researcher and may be influenced
Self-Report
- Participants are asked to provide information or responses to questions on a survey
- Advantages: They are easy to create and score, computers allow data collection
- Disadvantages: often differences between what people really think and do and what they believe or want the researcher to believe
Psychophysiological
We can also use technological devices to measure what is taking place
Archival
Researchers can examine data that has already been collected for other purposes
Study Designs
Case Studies
- Research can conduct a detailed analysis of a particular person, group, event, etc
- Advantages: Researchers can study unusual, rare, or difficult-to-find participants or events
- Disadvantage: What happens with one case may not generalize to other cases
Correlational Designs
2 different variables measured to determine if a relationship between them
Controlled Experiments
Researchers create a controlled environment in which they can carefully manipulate at least one variable to test its effect on another
Placebo Effect
What participants expect to experience – participants believe what is really happening
Demand Characteristics
Participant knows what is expected or hypothesized in an experiment
Rosenthal Effect
Person running the experiment has expectations, could influence the study
Double-Blind Procedures
Neither the participants or the researchers interacting with them know who has been assigned to the experimental or control groups
Social Desirability Bias
What the participants think is the polite, appropriate, or normal thing to say
Negative Correlation
Relationship between two variables where one increases as other decreases
Positive Correlation
Relationship between two variables where if one variable increases, the other one also increases, or if one decreases, the other decreases – must be the same
Curvilinear Relationships
The data points increase together up to a certain point and then as one increases, the other decreases or vice versa
Spurious Relationship [Spurious Correlation]
Relationship where two or more events or variables are not causally related to each other
Behaviorism
Fears are learned, not inherited
Stimulus
Some environmental event that we hear, see, feel, smell or taste
Classical learning
Involves learning that a stimulus that would otherwise have no biological meaning is associated with something that does
Neutral Stimulus (NS)
There is no naturally wired response to the neutral stimulus. It is just neutral
Unconditioned Stimulus (UCS)
A stimulus which causes a naturally wired response
Unconditioned Response (UCR)
Response caused by stimulus naturally, without conscious thought
Conditioned Stimulus (CS)
The NS always becomes the CS
Conditioned Response (CR)
The unnatural response that you want to create
Habituation
Getting used to something – repeated exposure to the same exact stimuli
Flooding
Eliminate response by presenting stimuli constantly to weaken any associations
Systematic Desensitization
Start out with easy stimulus and slowly work up to the real stimulus
Counter-Conditioning
To reduce a fear response associate stimulus with something positive
Aversive Stimulus
Creating a negative association with things we do not want to like as much
Aversion Therapy
To counter-condition away a positive response with an aversive stimulus
Garcia Effect: taste aversion
Learning to avoid a food that makes you sick
Aversive
Tending to avoid or causing avoidance of a noxious or punishing stimulus
Operant Conditioning
Intelligent creatures adjust their behavior to maximize desirable outcomes and minimize harmful or aversive ones
Law of Effect
A behavior is more likely to occur if it leads to a desirable effect
Radical Behaviorism
The theoretical argument that the environment determines all behavior
Reinforcers vs. Punishers
A reinforcer is some stimulus that an animal wants to receive
Primary vs. Secondary
Primary stimuli are things that have a natural effect without any learning necessary
Four categories of stimuli that will influence behavior
Primary reinforcers are naturally desirable
Changing behavior using operant conditioning
- Reinforcement (R) vs. Punishment (P)
- Positive (+) vs. Negative (-)
Schedules of Reinforcement
Five general patterns in which reinforcers or punishers are delivered
Extinction
The process of unlearning a behavior when reinforcement is no longer associated with it