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Cheat sheet

CLEP Social Sciences & History cheat sheet

A condensed reference for the formulas, graph-reading rules, and must-know facts most worth reviewing before exam day.

Production Possibility Curve quick read

  • A PPC shows tradeoffs between two goods when resources and technology are fixed.
  • Points on the curve are efficient; points inside are inefficient; points outside are currently unattainable.
  • Moving along the curve shows opportunity cost: producing more of one good means giving up some of the other.
  • A bowed-out curve means opportunity cost rises as production shifts toward one good.
  • The entire curve shifts outward when resources, technology, or productivity improve.

Aggregate Demand and Aggregate Supply

  • Aggregate Demand slopes downward: lower price levels increase real purchasing power, interest-rate effects, and net exports.
  • AD shifts right when consumption, investment, government spending, or net exports increase.
  • Short-run Aggregate Supply slopes upward because wages and some input prices adjust slowly.
  • SRAS shifts left when input costs rise or supply shocks hit; it shifts right when costs fall or productivity improves.
  • Long-run Aggregate Supply is vertical at potential output. In the long run, output depends on resources and productivity, not the price level.

Geography and population data

  • Population pyramid with a wide base usually signals high birth rates and a younger population.
  • A narrow base and larger older cohorts suggest slower growth or population aging.
  • Push factors drive people away from a place; pull factors attract them to a place.
  • Urbanization means a larger share of people live in cities, not necessarily that rural population is zero.
  • When reading a table, check units, direction of change, and whether the question asks for absolute change or percent change.

Practice this first: Economics graph reading - Student reports point to PPC and AD/AS interpretation as the most surprising challenge on an otherwise broad exam.

Now put it to work - practice CLEP Social Sciences & History free

Reviewing the sheet is step one. Passers are usually hitting about 70-80% on realistic practice before test day, so the fastest way to know you are ready is to start answering real questions.