N6208 Assignment 5Chapter 6: t-testsMallory Doyle1For which of the following situations is the independent groups t-testappropriate (if inappropriate, indicate why):a)The independent variable (IV) is type of stimulation for premature infants (auditory vs. visual vs. tactile); the dependent variable (DV) is cardiac responsiveness.It is inappropriate, because three different stimulations are being tested.b)The IV is parental role within couples (mother versus father); the DV is degree of bonding with the infant. The same child is being used in both studies. There is not a control, so it is inappropriate.c)The IV is infant birthweight (low birthweight vs. normal birthweight); the DV is number of days absent from school in first grade. two different groups are being studied, so it is appropriate.d)The IV is sex (men vs. women); the DV is compliance vs. noncompliance with a medication regimen. No, the participants are in the same group, i.e. medication regimen, and gender does not make the groups different enough for an independent group test.e)The IV is radiation treatments (before vs. after treatment); the DV is cancer patients perceived self-efficacy. It is inappropriate, because the same group is being looked at before and after intervention. Would be a dependent group.
2For which of the following situations is the dependent groups t-test appropriate (if inappropriate, indicate why):