Explanation:
the trade merchants relied on barter
Based on the information given, it should be noted that the serial condition of the experiment would cause A. A primary effect.
From the complete information, it should be noted that Compared to the simultaneous condition, the serial condition of the experiment would be more likely to cause a primary effect.
The primary effect simply implies that the subjects will remember the objects that are presented first. This implies that it's talking about the ordering of the events.
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Answer:
69 people in power in a democracy
Answer: Babbling
At around 3-4 months, children start the babbling period, which is characterized by the production of sounds that approach the sounds of adult speech and whose frequency is maximum between 9 and 12 months. During this period, the sounds produced already have an upward and downward intonation pattern, however they are not intelligible until seven or eight months, when parents begin to identify babbling with requests, hunger, surprise, etc.
The role of this period in the acquisition process is not clear; according to Menyuk (1970, p.79) the purposes of babbling are "to explore the possibilities of the vocal mechanism, to feel pleasure in the vocal performance, to learn to control the output of the mechanism and thus, to repeat certain sequences. In a later stage, babbling has the function of drawing the parents' attention and communicating the child's emotional state.
Answer: Standardization
Explanation:
Standardization is defined as process in which something is kept and followed as per basic standards of that field.It maintains consistency level in the field for all the factors.
According to the question, standardization is the drawback factor in Dr. Dodd's research because the measure of physical activity was based on standards of college student's field .
This standard is used by Dr. Dodd for measuring senior citizen's physical activity. Thus, the result obtained will be inaccurate because of incorrect standardization used.
