Guerrillas could launch surprise attacks quickly against a force then get away quickly
It is so important because it has changed the life better. If the Colombian exchange didn't exist, we wouldn't eat hamburgers and hot dogs because there was no wheat or pigs that time.
Your question is missing the options. I've found the complete question online. It is as follows:
To study the effects of noise on worker productivity, researchers have on group of subjects work in a noisy room and a second group work in a quiet room. To ensure that any differences in the productivity of the two groups actually results from the different noise levels to which the groups are exposed, the researchers would use:
1) the case study
2) correlational measurement
3) naturalistic observation
4) replication
5) random assignment
Answer:
Researchers should use 5) Random assignment.
Explanation:
According to the description, the experimental design is being used to study the effects of noise on worker productivity. The most common form for experimental design happens by dividing participants into two groups, the experimental group and the control group. Change - the noisy room, in this case - is only introduced to the experimental group. Now, if researchers want to be sure that any differences in the productivity actually result from the different noise levels, they should use random assignment. That means giving every participant equal chances of being randomly assigned to each group. Random assignment is also called random allocation or randomization.
Answer:
D) Echoic memory
Explanation:
Echoic memory: In psychology, the term "echoic memory" is described as a term that is being used to explain the "ultra-short-term" memory-related to auditory stimuli. Echoic memory is also referred or denoted as "auditory sensory register" or "auditory store". Echoic memory consists of only one sort of "ultra short term memory" i.e, "sensory memory".
Example: Spoken language.
In the question above, the given statement signifies the echoic memory.
Answer:because they want a market where there is only one seller of goods.
Explanation:
