Homework Answers
We know that in a double-blind study, neither the experimenters nor the participants know who is receiving a particular treatment. Hence, our answer here is: double-blind experiment.
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A _experiment is used when both the participant and the experimenter are uninformed about what condition...
Indicate what error the experimenter made when running the following TLCs.
Indicate what error the experimenter made when running the following TLCs.
Both parts a and b please 5) An experimenter used a bomb calorimeter to determine the...
Both parts a and b please
5) An experimenter used a bomb calorimeter to determine the enthalpy of combustion of octane. The expression used to calculate the enthalpy is given by: 17 where Ceal is the heat capacity of the calorimeter, n is the number of moles of octane, CsHis used and Ti and T are the initial and final temperatures of the combustion. The following data was collected by the researcher: Cal = 2390 +/-10k/PC T 24.02 +1-0.02 C...
A condition monitoring technique for wind turbine blades is used to detect faults, but is not...
A condition monitoring technique for wind turbine blades is used to detect faults, but is not perfect. It has a sensitivity of 97% (proportion of faulty blades correctly identified) and a specificity of 99% (proportion of blades without faults correctly identified), when used as part of routine maintenance. Assume that 1% of the blades have faults. (a) What proportion of blades tested will receive a negative result, i.e. claiming that they are without faults? In your working, define relevant events....
Suppose the market for used cars has 75 sellers with cars in good condition and 25 sellers with cars in bad condition (...
Suppose the market for used cars has 75 sellers with cars in
good condition and 25 sellers with cars in bad condition
("lemons").
5. Suppose the market for used cars has 75 sellers with cars in good condition and 25 sellers with cars in bad condition ("lemons"). There are an unlimited number of potential buyers. Buyers are willing to pay $10,000 for cars in good condition while the sellers value these cars at $7,000. Buyers are willing to pay $300...
Think about a common strategy used to address a clinical condition (i.e. counseling services for weight loss). What key...
Think about a common strategy used to address a clinical condition (i.e. counseling services for weight loss). What key components of the Integrated Behavioral Model and/or Transtheoretical Model are used in the strategy to effect positive behavior change? Be sure to discuss at least two components and give specific examples. Does the strategy promote self-efficacy? Why or why not? In you reply posts, offer additional components to your classmates' topic of issue or compare/contrast with a strategy used for your...
1. For each research example, determine if there are main effects and/or an interaction AND explain what those findings mean. A researcher is interested in the effects of ambiguity and number of bysta...
1. For each research example, determine if there are main effects and/or an interaction AND explain what those findings mean. A researcher is interested in the effects of ambiguity and number of bystanders on helping behavior. Participants fill out a questionnaire in a room with zero or two other people who appear to be other subjects but are not. The experimenter distributes the questionnaire and then goes into the room next door. After 5 minutes there is a loud crash,...
1. An experimenter examining decision-making asked 10 children to solve as many problems as they could...
1. An experimenter examining decision-making asked 10 children to solve as many problems as they could in 10 minutes. One group (5 subjects) was told that this was a test of their innate problem-solving ability; a second group (5 subjects) was told that this was just a time filling task. The data for each group is presented below. Innate ability: 4,5,8, 3,7 Time-filling task: 11, 6,9,7,9 Does the mean number of problems solved vary with the experimental condition? i.e., is...
In C++, which of the following numbers will evaluate to ture when used in the condition...
In C++, which of the following numbers will evaluate to ture when used in the condition of an if statement: a. 1 b. -1 c. 100 d. Al of the above Note : Please provide a solution
When substance abuse and dependence are both documented, how should the condition be coded? a. Assign...
When substance abuse and dependence are both documented, how should the condition be coded? a. Assign a code for abuse only. b.Assign a code for dependence only. c. Assign two codes, one for abuse and one for dependence. d.Assign a combination code for abuse with dependence.
1-Kael is a participant in a research experiment that is testing the effect of a new...
1-Kael is a participant in a research experiment that is testing the effect of a new drink beverage on energy levels. Kael believes that she was given the true energizing drink. When, in reality, she was part of the control group. From her expectation though Kael acts more energetic and alert. Her behavior is an example of a (n) : Experimental expectation Participant double-blind belief Confound Placebo effect 2- Hermann von Helmholtz studied the physiology of vision and hearing. Given...
Indicate what error the experimenter made when running the following TLCs.
Both parts a and b please
5) An experimenter used a bomb calorimeter to determine the enthalpy of combustion of octane. The expression used to calculate the enthalpy is given by: 17 where Ceal is the heat capacity of the calorimeter, n is the number of moles of octane, CsHis used and Ti and T are the initial and final temperatures of the combustion. The following data was collected by the researcher: Cal = 2390 +/-10k/PC T 24.02 +1-0.02 C...
A condition monitoring technique for wind turbine blades is used to detect faults, but is not perfect. It has a sensitivity of 97% (proportion of faulty blades correctly identified) and a specificity of 99% (proportion of blades without faults correctly identified), when used as part of routine maintenance. Assume that 1% of the blades have faults. (a) What proportion of blades tested will receive a negative result, i.e. claiming that they are without faults? In your working, define relevant events....
Suppose the market for used cars has 75 sellers with cars in
good condition and 25 sellers with cars in bad condition
("lemons").
5. Suppose the market for used cars has 75 sellers with cars in good condition and 25 sellers with cars in bad condition ("lemons"). There are an unlimited number of potential buyers. Buyers are willing to pay $10,000 for cars in good condition while the sellers value these cars at $7,000. Buyers are willing to pay $300...
1. An experimenter examining decision-making asked 10 children to solve as many problems as they could in 10 minutes. One group (5 subjects) was told that this was a test of their innate problem-solving ability; a second group (5 subjects) was told that this was just a time filling task. The data for each group is presented below. Innate ability: 4,5,8, 3,7 Time-filling task: 11, 6,9,7,9 Does the mean number of problems solved vary with the experimental condition? i.e., is...
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