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- Abstract To cooperate effectively, both in small-scale interactions and large-scale collective-action problems, people frequently have to delay gratification (i.e., resist short-term temptations in favor of joint long-term goals). Although delay-of- gratification skills are commonly considered critical in children’s social-cognitive development, they have rarely been studied in the context of cooperative decision-making. In the current study, we therefore presented pairs of children (N = 207 individuals) with a modified version of the famous marshmallow test, in which children’s outcomes were interdependently linked such that the children were rewarded only if both members of the pair delayed gratification. Children from two highly diverse cultures (Germany and Kenya) performed substantially better than they did on a standard version of the test, suggesting that children are more willing to delay gratification for cooperative than for individual goals. The results indicate that from…A tenet of the scientific method is that -------------------------------allow researchers to examine mental processes and behavior in an empirical, scientific manner.You are tasked to design a prevention program to target one of two different infectious diseases. You only have funding to target one of them, so you must choose wisely. The first infectious disease (Disease A) has a case fatality rate of close to 75%, but a very low cause-specific mortality rate. The other (Disease B) has a case fatality rate less than 0.1%, but a relatively high cause-specific mortality rate. Which do you choose? Why
- Preventing heart attacks: Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heart attack or stroke in coronary patients. A total of 6663 patients were given clopidogrel, and 6740 were given ticagrelor. Of the clopidogrel patients, 654 suffered a heart attack or stroke within one year, and of the ticagrelor patients, 577 suffered a heart attack or stroke. Can you conclude that the proportion of patients suffering a heart attack or stroke differs between ticagrelor and clopidogrel? Let p, denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p, denote the proportion of patients suffering a heart attack or stroke with ticagrelor. Use the a=0.01 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 4 State the null and alternate hypotheses. Ho: H : This hypothesis test is a (Choose one) v test. Español Find the P-value. Round the answer to four…Why is Monte Carlo simulation necessary? Give an example of how it could be used in an actual business situationYou are on placement in a GP practice which holds a nurse-led asthma clinic once a week. The nurse practitioner in charge of the clinic tells you that asthma affects around 11% of the Australian population, and results in around 40,000 hospital admissions each year. She also tells you that the common pharmacological treatments can have long-term side effects, so she is keen to promote holistic methods to assist patients in controlling their asthma. You are interested to know whether diet can have an effect on asthma, and decide to find out. Construct a searchable clinical question using the PICO formula, identifying the PICO elements clearly.
- A junior high social studies teacher finds that some of his students can easily remember the ideas he presents, yet others have trouble remembering information from one day to the next. He suspects that the students who have better memories for class material are those who are taking more complete notes in class. He collects students' notebooks one day and finds that students who are doing well on classroom assessments take a lot more notes than students who are doing poorly. (a) Classify the research as one of the following: Quantitative/descriptive Quantitative/correlational Quantitative/experimental Quantitative/quasi-experimental Qualitative Mixed methods, and then (b) Identify one or more conclusions that might reasonably be drawn from this study and, if relevant, one or more conclusions that cannot be drawn from the study.Thomas and Camille are international visiting scientists with research interests in horticultural and environmental issues in urban areas. They participate in various studies performed by Ville de Montréal. More specifically, they address issues related to plant diseases in city gardens, air and water quality, and food waste management. The viruses causing problems in strawberry plants are mainly spread by one insect, the strawberry aphid. Camille believes that as aphids feed on leaves, they transmit viruses that can cause a rapid decrease in plant growth. She decides to verify whether or not the number of strawberry aphids found on a plant could be linked to its growth. She therefore randomly chooses 5 strawberry plants at the same stage of development in a virus-infested garden. For each individual plant, she first collects all the aphids present on the plant and weighs them, and then weighs the entire plant to have a measure of plant growth. She obtains the following data.…Psychologists Erik Erikson suggested that individuals go through eight developmental stages of life. Erikson believed that at stage 8 (age 65 to death), an adult's fear of death can be predicted by the satisfaction they feel when reflecting back on their lives. To investigate, a psychiatrist interviewed a random sample of adults age 65 and older, and scored them on their satisfaction with their lives and their fear of death. The psychiatrist wants to confirm Erikson's theory. What can be concluded with a = 0.01? fear of death satisfied 4 3 4 2 2 10 3 2 4 7 3 4 8. 4 a) Select and compute the appropriate statistic. ---Select--- b) Input the appropriate value(s) to make a decision about Ho. p-value X ; Decision: Fail to reject H0 v c) Using the SPSS results, compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and/or select "na" below.. Effect Size = 0.266 ; Magnitude: na d) Make an interpretation based on the results. More life satisfaction…
- Preventing heart attacks: Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heart attack or stroke in coronary patients. A total of 6728 patients were given clopidogrel, and 6678 were given ticagrelor. Of the clopidogrel patients, 573 suffered a heart attack or stroke within one year, and of the ticagrelor patients, 672 suffered a heart attack or stroke. Can you conclude that the proportion of patients suffering a heart attack or stroke is greater for ticagrelor? Let p₁ denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p2 denote the proportion of patients suffering a heart attack or stroke with ticagrelor. Use the a= 0.05 level of significance and the P-value method with the TI-84 Plus calculator. Part: 0 / 4 Part 1 of 4 State the null and alternate hypotheses. Ho: H₁ : This hypothesis test is a (Choose one) ▼ test. O|In a seafood plant, 75% of all fish fillets are processed by Line 1, while the remaining 25% are processed by Line 2. Inspectors give each pack of fillets a quality grade of A and B. In Line 1, 60% and 40% of fillets receive quality scores of A and B, respectively. In Problem 5 Line 2, 85% and 15% of fillets receive quality scores of A and B, respectively. Line 2 produces better quality fillets, but it is slower and more expensive to maintain than Line 1. Randomly select a fillet pack. (Hint: Draw a tree diagram.) a. What is the probability that the fillet pack will have grade A? b. Given that the fillet is selected from grade-A fillet, what is the probability that it comes from Line 2?As you read about each study, (a) classify the type of research that it reflects, and (b) identify the kinds of conclusions that might reasonably be drawn from the results. An educational psychologist videotapes 20 high school history teachers in action for a period of 4 weeks. He then codes every teacher statement as belonging to one of three categories: whether it (a) presents new information, (b) asks a question, or (c) gives instructions. He summarizes this information and compares the amount of teacher questioning to the students' scores on a district-wide history achievement test given later in the year. The researcher finds that when teachers ask a lot of questions in class, students are more likely to score at high levels on the achievement test. (a) Classify the research as one of the following: Quantitative/descriptive Quantitative/correlational Quantitative/experimental Quantitative/quasi-experimental Qualitative Mixed methods, and…