A Medical Journal Published the Results of an Experiment on Anxiety

question 17

Multiple Choice

A medical journal published the results of an experiment on anxiety. The experiment investigated the effects ofa controversial new therapy for anxiety. Researchers measured the anxiety levels of 65 adult women who suffermoderate conditions of the disorder. After the therapy, the researchers again measured the womenʹs anxietylevels. The differences between the the pre- and post-therapy anxiety levels were reported. How many levelsdoes the treatment have in this experiment?

• A) 2 (pre- and post-therapy)
• B) 1 (therapy)
• C) 65 (the adult women who suffer from anxiety)
• D) 130 (the adult women who suffer from anxiety measured pre- and post-therapy)

Understand the concept of fitness in the context of evolutionary biology and its proxies.

Grasp the significance of population size and structure in evolutionary processes, including inbreeding and genetic bottlenecks.

Appreciate the nuances and complexities of genetic variation, including the effects of migration, mutation rates, and selection pressures.

Understand the principle of Hardy-Weinberg equilibrium and its implications for population genetics.

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Definitions:

Pie Chart

A circular statistical graphic divided into slices to illustrate numerical proportion, where the arc length of each slice is proportional to the quantity it represents.

Bar Chart

A graphical representation of data where the values are depicted by the length of bars.

Bar Chart

A graphical display of data using bars of different heights or lengths to represent values of different categories.

Interval Data

Data measured along a scale, where each point is placed at an equal distance from one another, allowing for operations like addition and subtraction.