LOGICAL POSITIVISM & NEOBHAVIORISM

What is positivism (Comte’s view)?

Science should study only observable phenomena and avoid metaphysical speculation.

What did Ernst Mach contribute to positivism?

He argued that knowledge is based on sensations, and science should describe relationships between sensations.

What is logical positivism?

A 1920s movement (Vienna Circle) combining empiricism + logic, allowing theoretical concepts if they link to observation.

What is the key difference between positivism and logical positivism?

Positivism = only observable data Logical positivism = allows theoretical terms if they are logically tied to observations

What are observational terms?

Terms that refer to directly measurable, observable events.

What are theoretical terms?

Abstract concepts used to explain observations (e.g., memory, intelligence).

What is the verification principle?

A statement is meaningful only if it can be verified through observation.

OPERATIONISM

Q: What is operationism (Bridgman)?

Scientific concepts must be defined by the operations used to measure them.

What is an operational definition?

A concept defined in terms of measurable procedures or tests.

Example of an operational definition (anxiety)?

Anxiety = increased heart rate, sweating, and self-report rating scales.

Why was operationism important in psychology?

It made concepts clear, measurable, and scientifically testable.

NEOBHAVIORISM

What is neobehaviorism?

Behaviorism combined with logical positivism and operational definitions.

What are key features of neobehaviorism?

- Theoretical terms allowed (if operationalized) - Focus on learning - Use of animal research - Emphasis on prediction and control

Why did neobehaviorists use animals?

Behavior is easier to control and generalizable across species.

EDWIN GUTHRIE

What is Guthrie’s single law of learning?

A stimulus pattern paired with a movement will tend to produce that movement again.

What principle underlies Guthrie’s learning theory?

Contiguity (association by timing).

What is one-trial learning?

Learning happens in a single exposure, not through repetition.

Why does practice improve performance (Guthrie)?

It builds multiple stimulus–response associations for different movements.

What is a movement (Guthrie)?

A specific response to a specific stimulus — learned in one trial.

What is an act?

A group of movements that occur across varying conditions.

What is a skill?

A combination of many acts (e.g., driving, typing).

What is reinforcement (Guthrie’s view)?

It changes stimulus conditions, not satisfaction or reward.

How is Guthrie different from Thorndike?

Guthrie rejects satisfaction/punishment effects, focusing only on stimulus change.

What is forgetting (Guthrie)?

Old associations are replaced by new S–R associations, not decay

What is a habit (Guthrie)?

A learned act tied to many different stimulus situations.

How do you break a habit (Guthrie)?

Perform a new response in the presence of the old stimulus.

What is punishment (Guthrie)?

Effective only if it produces a new incompatible response, not because it causes pain.

What did Estes contribute?

Stimulus Sampling Theory — formalized learning mathematically from Guthrie’s ideas.

What did Voeks contribute?

Formalized Guthrie’s theory into testable postulates and experimental predictions.

Logical positivism in one line?

Scientific theories are valid only if linked to observable, testable data.

Guthrie in one line?

Learning happens in one trial through stimulus–response contiguity, not reinforcement.

CLARK L. HULL (1884 - 1952)

Who was Clark Hull?

An American neobehaviorist who created a highly formal, mathematical learning theory using hypothetico-deductive logic.

What shaped Hull’s early life and career?

Rural upbringing, illness (typhoid, polio), engineering background, and shift to psychology due to physical limitations and interest in systematic theory.

What is Hull’s hypothetico-deductive method?

A scientific system where: - Postulates are proposed - Theorems are logically derived - Predictions are tested experimentally - Theory is revised based on results

What was Hull trying to achieve in psychology?

A Newtonian-style formal science of behavior with precise, quantitative laws.

What are intervening variables in Hull’s theory?

Internal, unobservable processes (like drive and habit strength) inserted between stimulus and response.

What is habit strength (SHR)?

A learned association strength based on the number of reinforced S–R pairings.

What is reaction potential (SER)?

The likelihood of a response: SER = habit strength × drive

What is Hull’s view of reinforcement?

Reinforcement = drive reduction (learning occurs when a biological need is reduced).

What was Hull’s main influence on psychology?

Introduced formal, mathematical learning theory and influenced later cognitive and computational models.

Why did Hull’s theory decline?

It was overly complex, rigid, and difficult to apply compared to simpler systems like Skinner’s.

BURHUS F. SKINNER (1904 - 1990)

Who was B. F. Skinner?

A radical behaviorist who focused on operant conditioning and environmental control of behavior.

What is Skinner’s version of positivism?

A strict empirical approach focusing only on observable behavior-environment relations, rejecting inner mental causes.

What is functional analysis of behavior?

Studying behavior by identifying: - antecedents (what comes before) - consequences (what follows)

What is operant behavior?

Behavior emitted by an organism that is shaped and maintained by its consequences.

How does Skinner define reinforcement?

Anything that increases the probability of a behavior.

What is the role of the environment in Skinner’s theory?

The environment “selects” behavior through reinforcement, like natural selection.

What is positive behavioral control (Skinner)?

Shaping behavior using reinforcement instead of punishment.

What is Skinner’s view on punishment?

Punishment is ineffective long-term and produces negative side effects; reinforcement is preferred.

What is Skinner’s view of theories?

He rejected internal theoretical constructs and preferred direct description of behavior-environment relations.

What are applications of Skinner’s work?

- Behavior therapy - Education (programmed learning) - Token economies - Animal training - Social design (Walden Two)

How does Hull differ from Skinner?

Hull: internal variables (drive, habit strength), mathematical theory Skinner: no internal constructs, focuses only on observable behavior

How do Hull and Skinner define reinforcement differently?

Hull: reinforcement = drive reduction Skinner: reinforcement = increase in behavior frequency (no internal mechanism needed)

What is the biggest philosophical difference between Hull and Skinner?

Hull: theoretical + inferential + formal system Skinner: descriptive + empirical + anti-theoretical

What is neobehaviorism?

A form of behaviorism that incorporates theoretical terms and internal variables but keeps them operationally defined.

How does neobehaviorism differ from early behaviorism (Watson)?

It allows theoretical constructs (like drives, cognition) as long as they are tied to observable operations.

Why is Hull considered a neobehaviorist?

Because he used internal constructs (drive, habit strength) but defined them operationally.

EDWARD C. TOLMAN

Who was Edward Chace Tolman?

An American neobehaviorist who combined behaviorism with cognitive concepts like purpose, expectancy, and cognitive maps.

What is purposive behaviorism?

The idea that behavior is goal-directed (molar) and organized around purposes, not just stimulus-response reflexes.

How did Tolman use rats in research?

He used rats in maze experiments to study learning, showing they form mental representations of environments (cognitive maps).

What are Tolman’s intervening variables?

Internal but scientifically defined processes (e.g., purpose, expectancy, cognition) that explain behavior between stimulus and response.

What is a cognitive map?

A mental representation of the environment that allows organisms to navigate and plan routes to goals.

What did Tolman mean by expectancies and beliefs?

Learned expectations about how the environment works (e.g., “this path leads to food”).

What was Tolman’s view of reinforcement?

Reinforcement is not required for learning; it mainly affects performance, not acquisition.

What is the learning–performance distinction?

Learning = internal acquisition of knowledge (cognitive maps) Performance = observable behavior influenced by motivation or reinforcement

What is latent learning?

Learning that occurs without reinforcement but is only shown when motivation or reward is introduced later.

What is Tolman’s influence on psychology?

- Helped bridge behaviorism and cognitive psychology - Introduced cognitive maps and latent learning - Influenced information-processing theory and social cognition - Preserved mental concepts in objective form

How has behaviorism changed today?

It moved from strict S–R theories to a more flexible, integrative science that includes cognitive and biological influences.

What is radical behaviorism (Skinner)?

Behavior is shaped by environmental consequences (reinforcement), with focus on observable relationships.

What is ABA?

A structured, evidence-based application of behaviorism used to increase helpful behaviors and reduce harmful ones.

How does modern behaviorism include cognition?

It treats thoughts and beliefs as intervening variables that influence behavior indirectly.

What is CBT’s relationship to behaviorism?

It combines behavioral principles with cognitive concepts (thoughts influence behavior and emotion).

What characterizes modern behaviorist methods?

- Precise measurement - Experimental control - Computational modeling - Operational definitions

What remains central to behaviorism today?

Commitment to observable, measurable behavior and empirical validation, even when studying internal processes.

Where is behaviorism used today?

- Education - Therapy (ABA, CBT) - Organizational psychology - Animal training

What is the modern state of behaviorism?

A flexible, scientifically rigorous field that still emphasizes behavior and environment but now integrates cognitive and biological perspectives.