Why does a researcher decide to use logistic regression instead of linear regression to calculate survival odds after suffering an out-of-hospital heart attack, in persons of various ages, genders, and cardiac diagnoses? (Select all that apply.)
a. Survival versus non-survival is a dichotomous variable.
b. Having a heart attack is a variable that has many possible outcomes.
c. Linear regression is less logical than is logistic regression.
d. Age is a ratio-level variable.
e. Gender is a nominal-level variable.
f. Cardiac diagnosis is a nominal-level variable.
ANS: A, D, E, F
Logistic regression replaces linear regression when the researcher wants to test a predictor or predictors of a dichotomous dependent variable. Logistic regression can have continuous predictors or nominal predictors or a combination of the two, with no assumptions regarding normality of the distribution.
You might also like to view...
The nurse preparing educational information on common mental health disorders among the older adult population should include:
a. methods for reducing anxiety. b. a written depression screening tool. c. local schizophrenia support groups. d. signs and symptoms of alcoholism.
To whom does the nurse provide information when working in the role of educator? (Select all that apply.)
a. Families about illnesses and treatments b. Community groups about injury prevention c. Student nurses about nursing standards and ideals d. Health care team members about the patient e. Physician assistants about invasive procedures
The nurse is teaching a patient about hemodialysis. How should the nurse explain this process?
remove waste products as well as correct fluid and electrolyte imbalances. 2. It allows a choice of either diffusion osmosis or ultrafiltration to remove excess water from the body. 3. It adds potassium to the blood when passing through the dialyzer and works on the principle of diffusion. 4. It will add electrolytes and water to the blood when passing through a semipermeable membrane to correct electrolyte imbalances.
In evaluating the new client's needs, the nurse realizes the client will need additional protein due to which of the following situations?
A) Peritoneal dialysis C) Menopause B) Hypometabolic condition D) Diabetes mellitus