scenario
Nora Would Like to Conduct an Experiment to Determine

question 24

Multiple Choice

scenario
Nora would like to conduct an experiment to determine whether behavior modification techniques can help children eliminate bedwetting. She obtains a sample of children who wet the bed and randomly assigns half to the behavior modification therapy and half to a control group who receive no therapy. After six months, she measures how often children in each group wet the bed.
-Suppose Nora obtains the following printout of information: $$\begin{array} { | l l l l | } \hline \text { GROUP } & N & M & S D \\\text { Therapy } & 10 & 1.60 & 1.07 \\\text { Control } & 10 & 5.50 & 0.85 \\t = - 9.00 & & d f = 18 & p = .001 \\\hline\end{array}$$ What decision should Nora make?

• A) The results are significant; children treated with behavioral modification therapy wet the bed less often than children in the control group.
• B) The results are not significant; children treated with behavioral modification therapy wet the bed less often than children in the control group.
• C) The results are significant; children treated with behavioral modification therapy and children in the control group did not differ in terms of bedwetting.
• D) The results are not significant; children treated with behavioral modification therapy and children in the control group did not differ in terms of bedwetting.

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Definitions:

Expected Annual

Refers to the anticipated yearly financial performance or returns, often used in the context of earnings, returns, or income.

Inflation

The rate at which the general level of prices for goods and services is rising, eroding purchasing power.

Time Value

The difference between the current value of the option and the value of the option if it were immediately exercised.

Present Value

Present value signifies the current value of a future amount of money or a sequence of cash flows, discounted at a given rate of return.