Accurate data are close to the correct or accepted value. Reproducible data can be duplicated.
What does it mean if data are reproducible but not accurate?
What does it mean if data are reproducible but not accurate? The data can be produced over and over but are not close to the accepted value. … The data can be produced over and over but are not close to the accepted value. The table shows results of an experiment that was replicated.
What are two main purposes for using repetition when conducting experiments quizlet?
What are two main purposes for using repetition when conducting experiments? Reducing mistakes and increasing confidence in results.
What term best describes the reproducibility in your results?
Precision refers to how close the values in a set of measurements are to one another. If you are using a flawed measuring instrument, you could get very precise measurements (meaning they are very reproducible), but the measurements would be inaccurate.
Which two characteristics of data always occur together?
The correct answer to the question “Which two characteristics of Data always occur together” is, option (d). High accuracy and good validity. If a measurement is validated that means it’s accurate.
What does it mean for data to be reproducible?
For the findings of a study to be reproducible means that results obtained by an experiment or an observational study or in a statistical analysis of a data set should be achieved again with a high degree of reliability when the study is replicated. …
Why is it important to make the experiment repeatable?
To repeat an experiment, under the same conditions, allows you to (a) estimate the variability of the results (how close to each other they are) and (b) to increase the accuracy of the estimate (assuming that no bias ” systematic error ” is present). … These are the 2 reasons for the repetition of one experiment.
Why would the CPSC perform studies?
The U.S. Consumer Product Safety Commission (CPSC) is also performing studies to build more safety into these products. … Studies performed by the CPSC give reliability to the results of improved safety obtained by each soap company.
What does it mean if data are reproducible but not accurate quizlet?
What does it mean if data are reproducible but not accurate? The data can be produced over and over but are not close to the accepted value. The data are close to the accepted value but cannot be produced over and over.
What is accuracy and reproducibility?
Accuracy: “conformity of an indicated value to an accepted standard” Reproducibility: “closeness of agreement among repeated measurements under the same operating conditions over time”
What are the characteristics that refer to the exactness of the data?
Accuracy and Precision: This characteristic refers to the exactness of the data. It cannot have any erroneous elements and must convey the correct message without being misleading. This accuracy and precision have a component that relates to its intended use.
What does it mean if an experiment exhibits reproducibility quizlet?
What does it mean if an experiment exhibits reproducibility? The same results are expected each time the experiment is done.
Can you be accurate but not precise?
Accuracy refers to how close a measurement is to the true or accepted value. … Precision is independent of accuracy. That means it is possible to be very precise but not very accurate, and it is also possible to be accurate without being precise.
What would most likely be included in the analysis section of a lab report?
Only the “Analysis” section includes specific data comparisons, and the only “Conclusion” section suggests further research. What would most likely be included in the “Analysis” section of the lab report? … A discussion of any errors in the experimental data.
How do you know if results are reproducible?
A measurement is reproducible if the investigation is repeated by another person, or by using different equipment or techniques, and the same results are obtained. N.B. “the same” results implies identical, but in reality “the same” means that random error will still be present in the results.
What is the difference between reproducibility and repeatability?
repeatability measures the variation in measurements taken by a single instrument or person under the same conditions, while reproducibility measures whether an entire study or experiment can be reproduced in its entirety.
Is reproducibility the same as precision?
Precision expresses the degree of reproducibility or agreement between repeated measurements. The more measurements you make and the better the precision, the smaller the error will be.
What is a reason that these data may be unreliable?
What is a reason that these data may be unreliable? It is information that is too new to be considered factual. It was found on the American Cancer Society website, and websites are unreliable. It is information that is used for a variety of purposes and not just gathered for research.
What does it mean if an experiment is reproducible?
Reproducibility: The ability of an experiment or calculation to be duplicated by other researchers working independently. Repeatability: The ability of an experiment or calculation to be duplicated by using the same method.
Do repeats increase accuracy?
What is the CPSC quality policy?
CPSC does this by: Developing voluntary standards with industry; … Issuing and enforcing mandatory standards or banning consumer products if no feasible standard would adequately protect the public; Conducting research on potential product hazards; and.
What factor is found in a scientific claim?
Generally, a scientific claim is one that is based on systematic observation and evidence. It’s designed to be far more reliable than any other kind of claim you could make.
Which set of data is most likely the result of a systematic error?
Four students measure the volume of an object that has an accepted value of 75.0 mL. They post their results in a table. Which set of data is most likely the result of a systematic error? A set of data that has poor accuracy and poor precision is most likely the result of many errors.
What is the difference between replication and repetition?
WHAT’S THE DIFFERENCE? Repetition occurs when multiple sets of measurements are made during one scientific investigation. Repetition is multiple trails, when replication is when you redo the entire experiment.
What should happen if a good experiment is replicated?
Replication refers to the ability of a process to be repeated by another individual. When one scientist replicates the experiment of another, the experiment should produce the same results.
How do you know if data is accurate?
In simpler terms, given a set of data points from repeated measurements of the same quantity, the set can be said to be accurate if their average is close to the true value of the quantity being measured, while the set can be said to be precise if the values are close to each other.
What is precise but not accurate example?
Precise, but not accurate: A refrigerator thermometer is read ten times and registers degrees Celsius as: 39.1, 39.4, 39.1, 39.2, 39.1, 39.2, 39.1, 39.1, 39.4, and 39.1. … The thermometer isn’t accurate (it’s almost two degrees off the true value), but as the numbers are all close to 39.2, it is precise.
What is the difference between accurate and precise?
Both accuracy and precision reflect how close a measurement is to an actual value, but they are not the same. Accuracy reflects how close a measurement is to a known or accepted value, while precision reflects how reproducible measurements are, even if they are far from the accepted value.
What is accuracy and why is it important?
Accuracy is to be ensuring that the information is correct and without any mistake. Information accuracy is important because may the life of people depend in it like the medical information at the hospitals, so the information must be accurate.
Why is it important to be accurate in measurement?
Accuracy represents how close a measurement comes to its true value. This is important because bad equipment, poor data processing or human error can lead to inaccurate results that are not very close to the truth.
What will happen if your measurements are inaccurate?
Inaccurate measurements can cause short term and long term heachaches for oil and gas companies. Such headaches may include financial losses (due to an incorrect amount of product being bought or sold), or operational downtime for installations (in order to diagnose and solve problems).
What is data comprehensiveness?
Data Comprehensiveness: The extent to which all required data within the entire scope are collected, documenting intended exclusions. Data Consistency: The extent to which the healthcare data are reliable, identical, and reproducible by different users across applications.
How do you maintain data quality?
What are the three critical components for determining data quality?
There are five components that will ensure data quality; completeness, consistency, accuracy, validity, and timeliness. When each of these components is properly executed, it will result in high-quality data.
What is the difference between accurate data and reproducible data quizlet?
Accurate data are close to the correct or accepted value. Reproducible data can be duplicated.
What investigations are usually less time consuming and less expensive?
Which kind of investigations are meant to provide large amounts of information about a wide range of variables?
Comparative investigations provide large amounts of information and use a wide range of variables.
What does not contain chemicals?
What Is Not a Chemical? If anything made of matter is made up of chemicals, which means that only phenomena that aren’t made of matter are not chemicals: Energy is not a chemical. Light, heat, and sound are not chemicals”nor are thoughts, dreams, gravity, or magnetism.
What is the most likely reason that Jake and Aisha formed different conclusions?
What is the most likely reason that Jake and Aisha formed different conclusions? D. The students used different ranges for their y axes. Why are graphs useful when interpreting data?
Which describes how Francis without the hypothesis is a theory?
Francis wants to know if a specific hypothesis he is researching is a theory. Which describes how Francis would know the hypothesis is a theory? WRONG ” He could design and perform a new controlled experiment to test the hypothesis. … A law is a theory that has been proven to be true and universal.