Dr.Osborn believes that taking calcium will improve bone density in women.She uses a between subjects design and gives the treatment group Calcium everyday and the placebo group a sugar pill.Her scientific or alternative hypothesis is_____.
A)non-directional
B)directional
C)should not be between subjects
D)None of these

Question

Quizplus · Accepted Answer

The directional hypothesis would state the specific direction of the expected effect, which in this case is that the bone density in the treatment group will be higher than the bone density in the placebo group. The hypothesis is appropriate for a between subjects design, as it allows for comparison between groups receiving the treatment and the placebo. The non-directional hypothesis would simply state that there will be a difference between the groups without specifying the direction of the effect.

DrOsborn Believes That Taking Calcium Will Improve Bone Density in Women.She