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

question 20

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 sums of squares for gender are

• A)0.42
• B)40.83
• C)593.43
• D)141.90

Understand the relationship between concepts, genus, and species in organizational schemes.

Analyze the requirement for species to be equally abstract at the same level of organization.

Understand the concept of hierarchical organization and the principle of joint exhaustiveness.

Identify the relationship between concepts at different levels of a hierarchical organizational scheme.

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Definitions:

Defined Benefit Plan

A retirement plan where employee benefits are calculated based on a formula considering factors such as salary history and duration of employment.

Commercial Airline Pilot

A trained professional who operates and navigates airplanes for commercial airlines, carrying passengers and cargo over scheduled routes.

Military General

A high-ranking officer in the military, responsible for strategic planning and command of military operations.

Firefighter

A person whose job is to extinguish fires, rescue people, and prevent the spread of fire and hazards to life and property.