If we recruit a sample of 100 adults diagnosed with Generalized Anxiety Disorder and find that their mean CAARS score is 49, using an alpha-level of .05, can we conclude that anxiety appears to impact attention ratings?
Research Question 2:
Does suffering from anxiety alter people’s self-reported ability to focus? The mean attention rating on the Conner’s Adult ADHD Rating Scale (CAARS) is 50 and the standard deviation is 10.
- If we recruit a sample of 100 adults diagnosed with Generalized Anxiety Disorder and find that their mean CAARS score is 49, using an alpha-level of .05, can we conclude that anxiety appears to impact attention ratings?
- What if we recruited a sample of 500 adults?
Answer to part a
State research question and research hypothesis:
Research Question:
Independent Variable:
Dependent Variable:
Research Hypothesis:
State null and alternative hypotheses:
H0:
H1:
Define level of significance (alpha level)
α =
Collect data and compute
Compute test statistic:
Determine probability of test statistic:
Reject or do not reject H0:
Interpret results of hypothesis test to answer research question!!!
Answer to part b
State research question and research hypothesis:
Research Question:
Independent Variable:
Dependent Variable:
Research Hypothesis:
State null and alternative hypotheses:
H0:
H1:
Define level of significance (alpha level)
Collect data and compute descriptive statistics
Compute test statistic:
Determine probability of test statistic:
Reject or do not reject H0:
Interpret results of hypothesis test to answer research question!!!
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