The ability to generalize a study's results to different circumstances is known as external validity that suffers from 7 types of threats.
<h3>What are the threats to External Validity?</h3>
There are 7 major threats to external validity.
- The first threat is sampling bias, in which a sample is not representative of the population.
- The second threat is history, where an unrelated incident can affect the results.
- The third threat is observer bias, in which the traits or actions of the experimenter unintentionally affect the results, resulting in bias and other demand features.
- The fourth threat is the Hawthorne effect, which describes the propensity for individuals to alter their behaviour merely because they are aware that they are being observed.
- The fifth threat is the Testing Effect, in which the results are impacted by whether a test is administered before or after another.
- The sixth threat is the aptitude-treatment, which involves the interaction of individual and group factors to affect the dependent variable.
- The environment, time of day, location, researcher traits, and other variables that restrict the generalizability of the results are included in the seventh threat.
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During osmosis, a statement which correctly describes the movement of water across a selectively permeable membrane is: 3. Either of these descriptions is correct and equivalent.
<h3>What is osmosis?</h3>
Osmosis can be defined as a process which typically involves the movement of a solvent molecule such as water through a selectively or permeable membrane from a region of high concentration to a region of lower concentration.
This ultimately implies that, the process of osmosis can be illustrated by the movement of water into root hair cells because they are used by the plants to absorb water from the soil.
In conclusion, the movement of water of from high water concentration to low water concentration and from low solute concentration to high solute concentration are statements which correctly describes the movement of water across a selectively permeable membrane during osmosis.
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Complete Question:
Which of the answer choices correctly describes the movement of water across a selectively permeable membrane during osmosis.
1. The water will move from high water concentration to low water concentration.
2. The water will move from low solute concentration to high solute concentration.
3. Either of these descriptions is correct and equivalent.
The excerpt that is from an opera aria by Mozart is; Excerpt A
What is the given Excerpt?
Mozart was an Austrian composer, widely recognized as one of the greatest composers in the history of Western music. Unlike any other composer in musical history, he wrote in all the musical genres of his day and excelled in every one. His taste, his command of form, and his range of expression have made him seem the most universal of all composers; yet, it may also be said that his music was written to accommodate the specific tastes of particular audiences.
Mozart wrote several successful operas, such as The Marriage of Figaro (1786), Don Giovanni (1787), and The Magic Flute (1791). Mozart also composed a number of symphonies and sonatas. His last symphony—the Jupiter Symphony—is perhaps his most famous.
The given excerpt which is seen from an audio listened to online is seen to be Excerpt A.
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