The following paragraphs provide details associated with different research scen
ID: 3021789 • Letter: T
Question
The following paragraphs provide details associated with different research scenarios. Read each paragraph, and then identify:
1) The variables described in each scenario.
2) The number of IVs and DVs described in each scenario.
3) The nature of the independent and dependent variables described in each scenario, e.g. categorical, quantitative, etc.
4) The measurement system used for each of the variables (IVs and/or DVs) described in each scenario, e.g., nominal, ordinal, interval, or ratio.
5) Select the test statistic that is appropriate for the hypothesis described in each scenario and your rationale for the selection of the test you did choose.
Scenario:
Anette conducts a study to evaluate her strength injury hypothesis. Her hypothesis states that overall body strength in elderly women predicts the number of accidents these women have. In her field study to evaluate this hypothesis, she collects data on a group of 100 elderly women. The women initially undergo a number of measures that assess lower and upper body strength, (quadriceps, gluteus/hamstrings, abdominals/lower back, arms/shoulders, and grip strength). Over the next five years, the women record each time they have an accident that results in a bodily injury.
(Mostly I am confused on which is/are the IV(s): "overall body strength", "upper and lower body strength" or "quads, glutes/hamstrings etc."? I understand that number of accidents is the DV.)
Explanation / Answer
a.) The variables described in the scenario are overall body strength, upper and lower body strength and quads, flutes or hamstrings, number of accident.
b.)IV : upper and lower body health
DV : Number of accident
The IV's are ordinal and DV is nominal
The paired -t Statistics is appropriate for this scenario as she needs to compare the health before and after.
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