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(Solved): In a cognitive psychology experiment, the researcher is interested in whether the encoding condition ...



In a cognitive psychology experiment, the researcher is interested in whether the encoding condition has a significant effect on memory for a set of drawings. In encoding condition A, subjects are asked to name the object in each drawing; in encoding condition B, subjects are asked to name the color of each drawing. Then all subjects are tested on their memory of the drawings. Each recruited subject is randomly assigned to either encoding condition A or encoding condition B.

Based on memory theories, the researcher hypothesized that condition A (object naming) would lead to significantly better memory compared to condition B (color naming), and she sets the significance level at α = .01 for a one-tailed test.

Subject IDEncoding A Subject IDEncoding B
177 1386
282 1483
390 1580
478 1677
592 1791
683 1890
791 1988
887 2077
991 2187
1079 2276
1185 2384
1292 2489

  1. What is the dependent (outcome) variable? What is the independent (grouping) variable?

2. Create the null and alternative hypotheses (directional) for this study, using both words and symbol notation



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