USMLE Step 1 Human Development Practice Questions
1–3% of Step 1 · 13 practice questions with a note on every option
280 questions in 14 timed 30-minute blocks, with your score in human development and every other content area.
Free human development drillA 74-year-old man is brought to the physician by his wife because he has had increasing difficulty understanding conversation, especially in noisy restaurants, over several years. He says that people mumble and that he has trouble hearing his granddaughter's high-pitched voice, though he hears his son well. Both ears seem equally affected. Otoscopic examination is normal. A tuning fork placed at the vertex is heard equally in both ears, and air conduction is greater than bone conduction bilaterally. Degeneration of which of the following structures most likely accounts for this patient's hearing loss?
Human Development on Step 1
Human Development is the smallest Step 1 category, at 1–3% of the exam. It covers normal findings across the life span: how infants and children grow and develop, what changes at puberty, and which changes of aging are normal rather than disease.
- Share of Step 1
- 1–3% of the exam, per the USMLE content outline
- On our mock exam
- 6 of 280 questions, with your score for this system in the result
- Our drill
- 10 questions from 13 human development questions, untimed, a note on every option; one free attempt, unlimited with a pass
What Step 1 human development questions test
- Developmental milestones in infancy and early childhood and what a delay points to
- Normal growth, puberty and its timing
- Normal physiological changes of aging in the heart, lungs, kidneys, brain and senses
- Care of the well patient and normal age-related findings
Sit all 280 questions in timed blocks
280 questions in 14 timed 30-minute blocks, with your score in human development and every other content area.
Free human development drillHow to study it
- Learn milestones as a short table by age and domain (motor, language, social).
- Contrast normal aging with disease: decreased renal function and lung elastic recoil are normal; dementia is not.
- Expect these questions to be quick wins; spend your time on the larger systems.
Common questions
How many Human Development questions are on Step 1?
The content outline puts Human Development at 1–3% of Step 1, so a handful of questions. Our 280-question mock includes 6.
Is pediatrics tested on Step 1?
Through the science: congenital and genetic disease, embryology, and normal development. Clinical pediatric management belongs to Step 2 CK.
280 questions in 14 timed 30-minute blocks, with your score in human development and every other content area.
Free human development drillThe other Step 1 systems
Sources
- USMLE: Step 1 (blocks, items, testing day, break time)
- USMLE: Step 2 CK (blocks, items, testing day, break time)
- USMLE: Test delivery software updates for Step 2 CK and Step 1 (May 2026)
- USMLE: Step 1 content outline and specifications
- USMLE: Step 2 CK content outline and specifications
- USMLE: Examination results and scoring (minimum passing scores)
- USMLE Bulletin: Scoring and score reporting (about 60% correct to pass; result timing)
- USMLE Bulletin: Eligibility (attempt limits)
- USMLE: Apply for exams (2026 and 2027 fees, FSMB registration, region fees)
- USMLE: Performance data (pass rates)
- Intealth ECFMG: Fees overview (ECFMG Certification)
Original practice questions written to the USMLE content outlines and current standard references. USMLE® is a joint program of the Federation of State Medical Boards (FSMB) and NBME. Independent practice, not affiliated with or endorsed by the FSMB, NBME or Intealth (ECFMG). Follow current guidelines in clinical practice.