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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theories-explain, organize, predict hypotheses-testable prediction operational definition-clear procedures used to define and measure research variables replication is important because it helps us reassure ourselves that our outcome was correct and to see if we must change our hypotheses or correct something in our experiment
Safe's first lean-agile principle includes delivering early and often has a direct economic benefit.
Safe's first Lean-Agile principle is to take a financial view. it's miles precept for a reason. Economics ought to tell and force selections at all degrees, from Portfolio to Agile groups. while many factors can make a contribution to failed answers, poor economics is one of the maximum commonplaces.
The standards of going with the flow are an important part of the lean-Agile mindset. those encompass know-how of the total improvement cost flow, visualizing and proscribing paintings in technique (WIP), decreasing batch sizes, and handling queue lengths.
Safes's is based on ten essential principles that have evolved from Agile ideas and methods, Lean product improvement, structure questioning, and statement of hit organizations. each is described in an element in an editorial with the aid of that precept's call.
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