A Psychologist Wishes to Determine Whether Short-Term Memory Scores Are

question 10

Multiple Choice

A psychologist wishes to determine whether short-term memory scores are affected by the type of medication in hyperactive children. Sixty hyperactive children (30 boys and 30 girls) were randomly assigned to receive either Cylert or Ritalin (two kinds of amphetamines that are central nervous system stimulants) . Their short-term memory was tested on a 20-point scale (where 0 = no memory and 20 = perfect memory) . $\begin{array} { c c c c c c } \hline & \text { Boys } & && { \text { Girls } } \\\hline \text { Cylert } & \text { Placebo } & \text { Ritalin } & \text { Cylert } & \text { Placebo } & \text { Ritalin } \\\hline 12 & 5 & 3 & 5 & 4 & 12 \\10 & 6 & 2 & 6 & 6 & 9 \\13 & 7 & 5 & 2 & 7 & 14 \\10 & 6 & 6 & 4 & 6 & 13 \\9 & 4 & 1 & 3 & 5 & 9 \\12 & 5 & 4 & 2 & 4 & 12 \\13 & 6 & 2 & 4 & 5 & 8 \\10 & 7 & 6 & 6 & 6 & 15 \\11 & 5 & 1 & 2 & 7 & 12 \\12 & 7 & 5 & 4 & 7 & 11 \\\hline\end{array}$
-The degrees of freedom for the interaction are

• A)1
• B)2
• C)54
• D)59

Identify the risks associated with explicit and implicit coercion in change management.

Learn the role of organization development (OD) in managing change systematically.

Comprehend the importance of active participation in change management.

Understand the dynamics and techniques of conflict resolution.

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Definitions:

Computed

Refers to something that has been determined or calculated using a computer or calculator.

Net Present Value

A method used in capital budgeting to assess the profitability of an investment or project, calculated by discounting the expected future cash flows to their present values and subtracting the initial investment.

Present Value

The immediate value of a future amount of money or a series of payments, discounted at a given rate of return.

Compound Interest

Interest calculated on the initial principal and also on the accumulated interest of previous periods.