The council house fight resulted in an increased hostility towards whites by the Comanches.
Explanation:
The Comanches were nomads , while the Texans were settlers.When the Texans moved into the Comanches territory,the Comanches were not very happy with it and started raiding and stealing Texans horses, cattle and children.
But later the Comanches wanted peace , so they called for a negotiation talk with the Texans. The Texans demanded the Comanches bring all the white prisoners in good faith.
However, when the Comanches came on the day of the council house of fight,they came with only one prisoner,This angered the Texans and it lead to a fight between the two leading to a massacre of both the parties.
In the end only on one Comanche chief along with some women and children survived.So this lead to further animosity between the Comanches and the Texans.
Answer:
The correct answer is D.
Explanation:
A confounding variable is a variable that you didn’t account for. It is when an experimenter cannot tell the difference between the effects of different factors on a variable. This method is used to influence the outcome of experimental design.
Answer:
A retrospective cohort study
Explanation:
A cohort study is an observational study in which individuals are classified (or selected) according to exposure status (exposed and unexposed) and followed to assess the incidence of the disease over a given period of time. Cohort studies can also be used to assess the risks and benefits of using a particular medication.
In the case of the research exposed in the question, one researcher analyzed the city's records to see who among the city's retirees had spent their careers working mostly indoors, without sun exposure; and outdoors with sun exposure. The sun is a major cause of hair cancer. Once participants were enrolled and screened, the scientist researched and examined the incidence of any form of skin cancer. This is a perfect example of a retrospective cohort study.
Answer:
Option C==>were not motivated to demonstrate it without reinforcement .
Explanation:
Edward Tolman was a Psychologist and was born on the 14th day of April, in the year 1886 in Massachusetts, United States of America and he died on the 19th of November, in the year 1959 in California, United States of America.
One of his works which deals with the solution to this question is about Cognitive maps and in order to establish his theory he made an experiment with rats by putting those rats in a maze for 17 days.
Edward Tolman divided this rats into three different groups.
(1). In one, for the full 17 days he made sure that whenever the rats goes out and meet a dead end he gives them food.
(2).In the second, for the full 17 days he gives no food to the rats.
(3). In the third, for the first 10 days he did not give the rats any food whenever they reach dead end and the remaining 7 days he gives them food.
In the third scenario, as the rats moves finding their way in the maze they were not rewarded for the first 10 days and this lower their motivation to and therefore they can not demonstrate their what they have learned about the maze.
Note that: the food is the reinforcement.
Answer:
The investigador should: Discuss the pros and cons of both the investigational drug and the commercially available drug and then allow the subject to decide whether to withdraw from the research to take the new drug.
Explanation:
An investigator's ethical duty, is to keep the subject of investigation, well informed with all the details about the invesigation. At a phase 2 of the study the subject suposposedly has been informed of the prosedure, following the informed consent. So in this particular case the investigator has to present all the new information so the subject can decide for himself what is best for him.
During phase II of an investigation, it is necessary to evaluate the benefits or negative aspects of a drug, to ensure the safty and wellbeing of the subject. If a drog is known to harm a subject, the procedure would stop. In this phase is important to have the data to decide and discuss what is best for the subject.
