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

question 8

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 F value for drug levels is

• A)0.16
• B)7.77
• C)112.92
• D)0.42

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Definitions:

Thought Patterns

The habitual ways in which one tends to think or process information, which can influence behavior and emotions.

Psychoanalysis

A therapeutic technique and theory of psychological disorders, emphasizing unconscious conflicts and childhood experiences.

Cognitive Therapies

Psychological treatments that focus on changing faulty or irrational thinking patterns, beliefs, and attitudes.

Systematic Desensitization

A therapeutic method used to cure phobias and other behavior problems involving anxiety, by gradual exposure to the feared object or situation in a controlled environment.