Psychology: Core Concepts, Methods, and Question Traps
What this domain covers
The TASC Psychology domain tests broad command of psychology as a science rather than recall of one textbook. Candidates should understand the major perspectives (biological, behavioral, cognitive, psychodynamic, humanistic, sociocultural, evolutionary) and be able to match a claim to the perspective that best explains it. Know the research methods hierarchy: naturalistic observation, case study, correlational design, and experiment. Be fluent in variables (independent, dependent, confounding), control and random assignment, reliability versus validity, and ethical safeguards such as informed consent, debriefing, and confidentiality. Developmental, social, and clinical material is often mixed in, so review attachment, classical and operant conditioning, memory systems, attribution, conformity, and the major disorder categories at a survey level.
Traps to expect
Questions reward precision. Correlation is not causation, and a negative correlation is still a relationship, not an absence of one. Random selection (who enters the sample) differs from random assignment (who enters each condition). Reliability means consistency; validity means measuring what is intended. Negative reinforcement removes an aversive stimulus and increases behavior; punishment decreases it. Sensation is detection; perception is interpretation. In developmental items, watch for stage names and approximate ages used as distractors.
Worked rule of thumb
When a stem describes a study, identify the manipulated variable first. If nothing is manipulated, it is not an experiment, so causal language is wrong. Example: a researcher finds students who sleep more earn higher grades. No variable was manipulated, so this is correlational; a third factor such as motivation could explain both. Eliminate any option claiming sleep causes grades.
Study strategy
Build a two-column table pairing each perspective and method with a one-line defining claim, then practice explaining why each distractor fails, since the exam often tests discrimination between near-synonyms.