Strength
Strength measures muscle and physical power. It affects:
• Melee attack rolls
• Damage rolls with melee or thrown weapons
• Strength checks (for breaking down doors and the like)
Dexterity
Dexterity measures hand-eye coordination, agility, reflexes, and balance. It affects:
• Ranged attack rolls
• Armor Class
• Reflex saving throws
• Escape Artist, Hide, Move Silently, Open Locks, and Tumble checks
Constitution
Constitution represents your character's health and stamina. It affects:
• Hit Die
• Fortitude saving throws
• Concentration checks
Intelligence
Intelligence determines how well your character learns and reasons. It affects:
• The number of skill points gained each level
• Appraise, Disable Device, Knowledge, Search, Psicraft, and Spellcraft checks
• A Wizard's bonus spells and a Psion's bonus powers
• The minimum score required to cast a Wizard spell is 10 + the spell's level
• The minimum score needed to manifest a Psion power is 10 + the power's level
Wisdom
Wisdom describes a character's willpower, common sense, perception, and intuition. It affects:
• Will saving throws
• Autohypnosis, Heal, Listen, Sense Motive, Spot, and Survival checks
• Bonus spells for Clerics, Druids, Paladins, and Rangers, as well as bonus powers for Psychic Warriors
• The minimum score required to cast a Cleric, Druid, Paladin, or Ranger spell is 10 + the spell's level
• The minimum score needed to manifest a Psychic Warrior power is 10 + the power's level
Charisma
Charisma measures a character's force of personality, persuasiveness, personal magnetism, ability to lead, and physical attractiveness. It affects:
• Bluff, Intimidate, Perform, and Use Magic Device checks
• Turning checks for Clerics and Paladins attempting to turn undead
• Bonus spells for Sorcerers and Bards
• The minimum score required to cast a Sorcerer or Bard spell is 10 + the spell's level