____ evaluate treatment outcomes for children who are unsystematically assigned to treatment and control conditions.

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Randomized controlled trials involve random assignment of participants to treatment and control groups, allowing for evaluation of treatment outcomes. Efficacy studies also involve randomized assignment, but the term is typically used in reference to controlled laboratory settings rather than real-world interventions. Case studies only examine the outcomes of individual cases, and correlational studies do not involve experimental manipulation of variables, so they cannot establish causality.

____ Evaluate Treatment Outcomes for Children Who Are Unsystematically Assigned