Research Project Been Assignment Help: How to Answer This Question

This type of question evaluates analytical and critical thinking skills.

What This Question Is About

This question relates to research project been and requires a structured academic response.

How to Approach This Question

Use appropriate theories and support your answer with clear reasoning.

Key Explanation

This topic involves research project been. A strong answer should include explanation, application, and examples.

Original Question

A research project has been tracking the health and cognitive functions of the elderly population in Arizona. The table below shows the memory test scores from some elderly residents, tested first when they were 70 years old and again when they were 80 years old. The researcher wants to know if there is a significant decline in memory functions from age 70 to age 80 based on this sample. In other words, it is hypothesized that the memory score at age 80 is significantly lower than the memory score at age 70. So the null and alternative hypotheses should be directional. The alpha level was set at α = .05 for a one-tailed hypothesis test. Memory score Subject Age 70 Age 80 1 74 70 2 72 67 3 73 71 4 68 68 5 74 73 6 72 69 7 67 65 8 69 70 9 69 67 10 72 70 Q2a. Identify the dependent variable (this is the outcome measure) and the independent variable (this is what differentiates the two groups of data points being compared). [1 point total: 0.5 for DV, 0.5 for IV] Q2b. Explain why a paired-samples t test is appropriate for answering this research question. [0.5 point] Q2c. What would be the null and alternative hypotheses in both words and symbol notations?

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