A researcher designs a study to assess the effects of individual versus group practice on problem-solving achievement of fifth-grade children.Two teachers in an inner city elementary school volunteer to participate in the study and they decide between themselves which method,either the individual or group method,their students will use.After a 10 week period,a problem solving test is administered to the children.Discuss the threats to internal and external validity in this study.

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The Answer of A researcher designs a study to assess the effects of individual versus group practice on problem-solving achievement of fifth-grade children.Two teachers in an inner city elementary school volunteer to participate in the study and they decide between themselves which method,either the individual or group method,their students will use.After a 10 week period,a problem solving test is administered to the children.Discuss the threats to internal and external validity in this study.

A Researcher Designs a Study to Assess the Effects of Individual