For which of the following situations is the dependent groups t-test appropriate
ID: 3063284 • Letter: F
Question
For which of the following situations is the dependent groups t-test appropriate (if not appropriate, why?)
a. The IV is presence or absence of conversation directed to comatose patients (same patients with and without conversation); the DV is the patients’ intracranial pressure.
b. The IV is birth type (home vs hospital); the DV is perceived functional ability of the patient 48 hours after surgery.
c. The IV is time since incarceration (1 months vs 3 months vs 6 months); the DV is body weight.
d. The IV is menopausal state (pre vs post) in the same women over time; the DV is attitudes toward menopause.
e. The IV is nap therapy for narcoleptics (same patients before vs after treatment); the DV is the type of nap they had the following week (had unplanned vs didn’t have unplanned nap).
Explanation / Answer
Ans:
a)The IV is presence or absence of conversation directed to comatose patients (same patientswith and without conversation); the DV is the patients’ intracranial pressure.
-Appropriate, assuming that the patients are used for with and without conversations.
b.The IV is birth type (home vs hospital); the DV is perceived functional ability of the patient48 hours after surgery.
- Inappropriate, because DV is not interval/ratio.
c.The IV is time since incarceration (1 months vs 3 months vs 6 months); the DV is bodyweight.
- Inappropriate because its 3 groups not 2
d.The IV is menopausal state (pre vs post) in the same women over time; the DV is attitudes toward menopause.
- Inappropriate, dv not interval or ratio
e.The IV is nap therapy for narcoleptics (same patients before vs after treatment); the DV isthe type of nap they had the following week (had unplanned vs didn’t have unplanned nap)
- appropriate.
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