TY - GEN AU - Hug,J J AU - Amsel,A TI - Frustration theory and partial reinforcement effects: the acquisition-extinction paradox SN - 0033-295X PY - 1969///1023 KW - Extinction, Psychological KW - Frustration KW - Reinforcement Schedule N1 - Publication Type: Journal Article UR - https://doi.org/10.1037/h0027419 ER -