Psychology: Learning Theories and Intelligence Testing

Speed of processing in cognitive psychology is measured by brain activity following stimulus exposure, typically using event-related potentials (ERPs) or reaction time tasks. The number of mistakes (A) measures accuracy not speed. Options B and D refer to specific motor tasks but not standardized processing speed measures. Brain activity measurement (C) is the most accurate general description of processing speed assessment techniques.

The prompt cuts off after "The distribution of IQ scores" - it should specify what we're looking for. Based on standard IQ testing knowledge, the distribution IS approximately normal (bell-shaped), centered at 100 with standard deviation 15. Option A is correct. Option B is incorrect - most people score between 85-115 (one SD from mean), not 80-100. Option C is incorrect - there's no significant average IQ difference between genders. Option D is incorrect - the curve falls off gradually, not abruptly, following normal distribution properties.

Standardization means using identical procedures, materials, and instructions for all test-takers. This ensures fairness by eliminating administration bias. A standardized test can be given to different people while maintaining consistency.

Savant syndrome describes individuals with limited general intelligence who display exceptional skills in specific areas like art, music, or calendar calculations. This rare condition often coexists with developmental disabilities. Giftedness refers to high overall ability, not isolated exceptional skills.

Heredity sets potential upper bounds on intelligence, but environment determines where within those bounds an individual falls. This reflects the nature-nurture interaction. Neither heredity nor environment alone determines intelligence - it's their interplay.

Group tests can be administered to multiple people simultaneously by one examiner, unlike individual tests which require one-on-one administration. Group testing is efficient for screening large numbers of people. Individual tests allow more detailed observation but are time-intensive.

Reliability refers to consistency of measurement - a reliable test yields similar scores for the same person across repeated administrations. Validity (option A) refers to measuring what is claimed. Reliability is necessary but not sufficient for validity.

Savant syndrome involves isolated exceptional abilities in individuals with general intellectual disability. Calendar calculation is a classic savant skill. This condition demonstrates how intelligence can be highly specific rather than uniform across domains.

Cross-cultural studies over recent decades show substantial IQ gains, typically around 15 points per generation - known as the Flynn effect. This rise cannot be genetic due to its speed, suggesting environmental drivers like nutrition, education, and cognitive stimulation.

Mental age represents the age level at which a person performs intellectually. By definition, the average child's mental age equals their chronological age. An average 12-year-old has mental age 12, just as an average 10-year-old has mental age 10.

Punishment involves presenting an aversive stimulus (positive punishment) or removing a pleasant stimulus (negative punishment) to decrease behavior. Negative reinforcement (option A) strengthens behavior by removing something unpleasant - a common confusion.

Thorndike's law of effect states that responses followed by satisfying consequences become more likely to occur again. The critical consequence must occur AFTER the response, not before or during it. This timing is essential for learning to take place.

Extinction occurs when a conditioned stimulus is repeatedly presented without the unconditioned stimulus, causing the conditioned response to gradually weaken and disappear. This process involves unlearning the previously learned association through lack of reinforcement.

Pavlov discovered classical conditioning through his experiments with dogs, demonstrating how neutral stimuli can acquire the power to elicit responses through association with biologically significant stimuli. His work laid the foundation for behaviorist psychology.

Spontaneous recovery is the reappearance of a conditioned response after a period of extinction. This phenomenon demonstrates that extinction doesn't erase the original learning - it temporarily suppresses it. Option C 'extinction recovery' is not a standard psychological term.

After repeated pairing of CS and US, the organism begins responding to the conditioned stimulus (CS) alone. This learned response to the CS is called the conditioned response (CR). The unconditioned stimulus (US) naturally triggers the unconditioned response (UR) without learning.

Reinforcement increases the likelihood that a behavior will be repeated. The teacher giving a sticker for good math homework is positive reinforcement - adding a pleasant consequence to strengthen the desired behavior. Extinction decreases behavior, and spontaneous recovery is the return of an extinguished response.

A punisher is defined functionally by its effect - ANY consequence that reduces the occurrence of a behavior. It can be the onset of something unpleasant (positive punishment) OR the removal of something pleasant (negative punishment). The key is the reduction in behavior, not the specific form.

Classical conditioning involves associating two antecedent events (CS and US) that occur together. Operant conditioning involves associating behaviors with their consequences. Both can occur in animals and humans. Operant conditioning is specifically affected by consequences (reinforcement/punishment).

A fixed interval schedule reinforces the first response after a fixed time period. Here, the first bark in each 10-minute window gets rewarded, so it's fixed interval. The timing is predictable (10 minutes) even though which bark gets rewarded varies.

This is negative reinforcement - the REMOVAL of an aversive stimulus (shock) increases the behavior (rolling on back). The hamster learns to roll because this behavior terminates the shock, making rolling more likely in the future. Negative reinforcement strengthens behavior through taking away something unpleasant.

In Pavlov's experiments, food was the unconditioned stimulus (US) - it naturally and automatically triggers salivation without prior learning. The bell became the conditioned stimulus (CS) after being paired with food. Salivation to food is the unconditioned response (UR).

For classical conditioning to work effectively, the conditioned stimulus (CS) must precede and predict the unconditioned stimulus (US). This temporal relationship allows the organism to learn that the CS signals the US is coming. Backward conditioning (US before CS) is much less effective.

Punishment primarily suppresses behavior temporarily rather than teaching new responses. It doesn't show what should be done instead - it only indicates what should stop. Teaching new appropriate behaviors requires reinforcement or other positive approaches. Options B, C, and D describe true statements about punishment.