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What I Have Learned Directions: Fill in the blanks with the correct word/s. 1. a means planning a set of procedures to investigate a relationship between variables. is the variable you think is the cause, while a/an is the effect. 2. 3. An treatment group, also known as a/an receives the treatment whose effect researchers wish to study. 4. The refers to the balancing, grouping, and blocking of experimental units so that the units within each block are relatively homogeneous. 5. The receives no treatment in the experiment. 14​

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Answer:

Differentiate the goals of descriptive, correlational, and experimental research designs and explain the advantages and disadvantages of each.

Explain the goals of descriptive research and the statistical techniques used to interpret it.

Summarize the uses of correlational research and describe why correlational research cannot be used to infer causality.

Review the procedures of experimental research and explain how it can be used to draw causal inferences.

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