Answer:
This is a longitudinal research.
Explanation:
Longitudinal research refers to a type of research which takes <em>place over time</em>. It centers on the study of the <em>same variables through time</em> in order to observe the variable's changes.
In this case, psychologist study 5, 7 and 9 year olds and then study them again two years later.
Answer: experimenting with multiple substances
Explanation:because it says melting point of a new substance so that is the project there is no need to try it out with other substances if what he is trying to find is one
Answer:
The correct answer is:
The test scores
Explanation:
The dependent variable in a research investigation refers to the information that will vary according to the independent variables that might be applied influencing the results of the experiment.
In this case, it is expected that the dependent variable, which consists of the test scores, differ according to the independent variables which would be the changing conditions for the application of the test.
You would most likely observe that afternoon cumulus clouds have higher cloud bases as you travel west.
Clouds with flat bottoms known as cumulus are frequently referred to as "puffy," "cotton-like," or "fluffy" due to their appearance. Their name comes from the Latin word cumulo, which means a mass or mound.
Unless they are the highly vertical cumulus congestus variety, cumulus clouds are low-level clouds that are typically less than 2,000 m (6,600 ft) in altitude. Cumulus clouds can appear singly, in groups, or in lines.
Learn more about cumulus clouds here:
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The correct answer should be borderline personality disorder.
When it comes to this disorder, patients suffering from it can change their moods and behaviors quite fast - from a calm one, to an erratic one in just a few minutes. These often result in impulsive (and often negative and dangerous) actions, episodes of extreme anger, anxiety, fear, sadness, depression, etc. <span />
