Subjects: Consumer Economics; Consumer Education; Costs
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Subjects: *MATHEMATICAL models; *COST control; *ECONOMICSUNITED States
Subjects: *MATHEMATICAL models; *ECONOMICS; *COMPUTERSSMITH, Adam, 1930-
Subjects: COMPULSIVE behavior; MATHEMATICAL models; PSYCHOLOGY
Subjects: Systems Development; Productivity; Criteria
Subjects: Randomized Controlled Trials; Sample Size; Effect Size
Subjects: Behavioral Science Research; Economics; Responses
Subjects: Elementary School Mathematics; Mathematical Models; Equations (Mathematics)