Answer:
S-delta
Explanation:
S-delta: The term "S-delta" can also be written as SD, and is defined as the stimulus due to which a particular behavior is not being reinforced because of its presence.
While conducting a discrimination training, an animal generally responds to a particular stimulus which seems similar to the S-delta, and finally, after a period the animal tends to stop responding to S-delta and it is being distinguished.
In the question above, the statement signifies the use of 'S-delta'.
Answer: elimination of alternative explanations
Explanation:
Cook and Campbell described three kinds of evidence that can be used to recognize the cause of a behavior maximizing internal validity: temporal precedence, covariation of cause and effect, and alternative explanations.
The elimination of alternative explanations refers to making sure that only one causal variable can be accountable for a specific observed effect.
Rushed conclusions may lead to leaving aside other possible causes.
The correct answer is D. I just did this test.
Answer:
The climatic snow line is the boundary between a snow-covered and snow-free surface. The actual snow line may adjust seasonally, and be either significantly higher in elevation, or lower. The permanent snow line is the level above which snow will lie all year.
Explanation:
Snowline altitudes (SLAs), when measured at the end of the melt season, represent the equilibrium line altitude (ELA) of a glacier (Meier, 1962), which is an indicator of seasonal/annual glacier mass balance and its response to climatic variability (Paterson, 1994).
Slavery was an awful part of U.S. history but it occurred. The growth affected the farming because Georgia and South Carolina had huge plantations, but once you start adding more and more people the population increases and your crop price decreases. (I am not 100% sure, but I am pretty confident on this)