By definition, a valid investigation is one that:aims to answer a scientific questionhas a testable hypothesishas an independent variable and a dependent variabletests its intended hypothesis
Question
By definition, a valid investigation is one that:aims to answer a scientific questionhas a testable hypothesishas an independent variable and a dependent variabletests its intended hypothesis
Solution
A valid investigation is one that meets several criteria.
-
Aims to answer a scientific question: This means that the investigation should be designed to provide an answer to a specific question that is based on scientific principles or theories.
-
Has a testable hypothesis: A hypothesis is a proposed explanation for a phenomenon. For an investigation to be valid, it must have a hypothesis that can be tested through experiments or observations.
-
Has an independent variable and a dependent variable: In any scientific investigation, there should be at least two variables. The independent variable is the one that is manipulated or changed by the researcher, while the dependent variable is the one that is measured to see if it changes as a result of the changes in the independent variable.
-
Tests its intended hypothesis: This means that the investigation should be designed in such a way that it can test whether the hypothesis is true or false. This is usually done by manipulating the independent variable and observing the effects on the dependent variable.
In summary, a valid investigation is one that is designed to answer a scientific question, has a testable hypothesis, includes an independent and dependent variable, and tests the intended hypothesis.
Similar Questions
Which of the following statement(s) best defines an experimental investigation?A type of investigation performed by observing something in its natural environment.A type of investigation performed by observing something in its natural environment and comparing two or more things.A type of investigation where two or more things are being studied and described.A type of investigation that is conducted under controlled conditions in which a variable is identified.Preview
validity is relevant when we want to interpret a test as a measure of some characteristic or construct that is not observed simply or overtly
It is a process of investigation, examination of a subject from different points of view. 1 pointResearchQuestionnaireSurvey
_____________evidence for validity applies when the test and the criterion can be measured at the same time
There are three basic types of scientific investigations. A scientist may choose to perform a investigation to identify patterns in nature by comparing two or more items or groups. This type of investigation is limited, however, because it is unable to identify direct relationships between groups. Also, too many uncontrolled variables outside the experiment may affect results.A scientist may choose to perform a investigation because they can make detailed records of animals or species without interfering with the environment. Although it may be limited by and results cannot be repeated or verified.Lastly, an experimental investigation can show a relationship between two variables. The test can be repeated and replicated, as well as products tested before human purchase or use. The limits include human error and not being able to answer the 'why' the results are happening the way they are. Another limitation is that some variables controlled or tested in this setting.descriptivebenefitare sometimescomparativevalidresearcher biascannot bereplication
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.