Kina is testing the effectiveness of her new intervention on self-esteem in first-year college students at her university. She obtains a list of all first-year students at her university and uses a computer randomizer to select 100 of them. Show Before conducting her study, Kina runs a pilot study to test her intervention with a small sample. Then, Kina gathers her sample of 100 first-year students and asks them to sign up for either her 2-week intervention or a first-year mixer event. At the end of the 2 weeks, Kina finds the following results: d = 0.12, 95% CI [−.13, .37]. Which of the following validities are established in Kina's study? Which test can prove causation between independent and dependent variables quizlet?This is usually called a posttest. We can determine whether an association exists between the independent and dependent variables in a true experiment because two or more groups differ in terms of their value on the independent variable.
Which of the following is the best method of establishing causation quizlet?Experiments are the best research method to establish causality.
Which research design requires the manipulation of the independent variable?An experiment is a type of empirical study that features the manipulation of an independent variable, the measurement of a dependent variable, and control of extraneous variables.
Which type of variable is manipulated by the researcher quizlet?When researchers manipulate a variable in a study, they are carrying out a(n) experiment. The manipulated variable is often called the independent variable. A manipulated variable always has more than one level or condition. Researchers measure the dependent variable to determine the effect of the manipulated variable.
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What criterion for causation is clearly established by manipulating the independent variable quizlet?
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