PRACTICE TEST 2026 FULL SOLUTIONS
REVIEW PACK
◉ Correlational research.
Answer: Examines the statistical relationship between two variables
without manipulating anything.
◉ Epidemiological research.
Answer: A type of correlational research using very large
populations to study prevalence or incidence of disorders.
◉ Experimental design.
Answer: A research design where researchers manipulate a variable
to examine its effect on another variable.
◉ Clinical trial.
Answer: Experimental research testing effectiveness or safety of
treatments.
◉ Randomized controlled trial (RCT).
, Answer: Participants are randomly assigned to treatment or control
groups.
◉ Control group.
Answer: A comparison group that does not receive the treatment
being tested.
◉ Comparative treatment research.
Answer: Research comparing two different treatments instead of
comparing treatment to no treatment.
◉ Single-case experimental design.
Answer: Experimental study of one individual using repeated
measurements over time.
◉ Withdrawal design.
Answer: A single-case design where treatment is introduced and
removed repeatedly to observe changes in symptoms.
◉ Multiple baseline design.
Answer: Measures treatment effects across different settings or
behaviors at different time points.