In assessing the internal validity of an intervention, we try to determine if certain changes cause certain outcomes. It is relevant in studies that try to establish casual relationship. While in observational or descriptive studies, it is not that relevant. It is also possible to have internal validity in a study and not have construct validity. Example, imagine a study where you are looking at the effects of a new computerized tutoring program on math performance in first grade students.
I believe the answer is: <span>Ebbinghaus
For his experiment on memory , Ebbinghaus use </span><span> simple acoustic encoding and </span>maintenance rehearsal<span> that make a subject try to remember several list of words that have similar syllabels and ending.
As it turned out , language and memory shows strong correlation because people are much more likely to forget or mixed up the meaning of similar sounding words.</span>
He was influenced by the Upper Pan-German nationalism movement circulated by Gorg Von
The junction of all four abdominal quadrants is the crossing of their boundary lines at the umbilicus.
<h3>What is the significance of abdominal quadrants?</h3>
The structural regions of the stomach are referred to as the abdominal quadrants to associate the corresponding organs' discomfort with each region. The right upper, left upper, right lower, and left lower quadrants are further divisions for the abdomen.
The umbilicus marks the place where the boundaries of all four abdominal quadrants cross. In general words, this is referred to as the navel or belly button, and it plays a crucial part in childbirth because it is the cord that bound you to your mother.
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