Maturation is a threat to internal validity stemming from either long-term or short-term physiological changes occurring within the participants that may influence the dependent variable.
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What are physiological changes?</h3>
Ageing causes physiological changes in all organ systems. Arteriosclerosis develops, blood pressure rises, and cardiac output declines. Lung function is compromised, vital capacity is reduced, and expiratory flow rates are slowed.
Pregnancy causes a number of physiological changes in the mother, such as an increase in fat and total body water, a drop in plasma protein concentrations, particularly albumin, an increase in blood volume, cardiac output, and blood flow to the kidneys, and a decrease in blood pressure.
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Explanation:
In the nineteenth century, males and females were not treated equally. Women were thought to be the 'weaker sex.' Middle-class women were severely affected even though they had no need to leave the house or go to work. Because women did not want to concern about problems like poverty, the middle and lower classes took women's roles very seriously.
Answer:
A flashback
Explanation:
Flashback is a vivid imagery experience. In this term, a person will relieve that experience and feel like it happened right now. It can compare with the that we watched a video but in flashback memory, we could not watch the full story of images from start to end.
It can happen with the experience of the full or partial image.
An individual will notice that sound, smell or other things that related to the trauma.
In this term, the patient will feel the pain and pressure emotionally.
In this term, the patient will experience the feelings that happened during the trauma.