To provide a baseline against which they can evaluate the effects of a specific treatment, experimenters make use of a(n) a. dependent variable.
Full Answer
What technique do researchers use to reduce the impact of confounding variables?
There are several methods you can use to decrease the impact of confounding variables on your research: restriction, matching, statistical control and randomization. In restriction, you restrict your sample by only including certain subjects that have the same values of potential confounding variables.
Which of the following can establish a cause/effect relationship?
A controlled experiment is the only research method that can establish a cause and effect relationship.
Why do researchers use experiments rather than other research methods?
Researchers use experiments rather than other research methods in order to distinguish between: causes and effects. Gamblers who blow on their dice "for luck" are victims of: the illusion of control.
Which of the following is most useful for helping Survey researchers avoid false generalizations?
Which of the following is most useful for helping survey researchers avoid false generalizations? hindsight bias.
Which design of research that would evaluate effects look into the cause and effect?
Experimental research, often called true experimentation, uses the scientific method to establish the cause-effect relationship among a group of variables that make up a study.
What is the best research method to determine cause and effect?
The main method for cause-effect research is experimentation. In experimental-based research, we manipulate the causal or independent variables in a relatively controlled environment. This means that we control and monitor other variables affecting the dependent variable (e.g. sales) as much as possible.
What are the 4 types of experimental research?
Four major design types with relevance to user research are experimental, quasi-experimental, correlational and single subject. These research designs proceed from a level of high validity and generalizability to ones with lower validity and generalizability. First, a note on validity.
What is experimental treatment in research?
1. in research, the conditions applied to one or more groups that are expected to cause change in some outcome or dependent variable. 2.
What is experimental approach in research?
Experimental research is a scientific approach to research, where one or more independent variables are manipulated and applied to one or more dependent variables to measure their effect on the latter.
What is debriefing in a study?
“Debriefing” is a procedure that occurs at the conclusion of the human subject's participation in the study (although, in cases that warrant it, a full debriefing may occur at the conclusion of the study), through which the subject is provided the opportunity to discuss with the researcher the details of the research.
How do random sampling and random assignment differ?
Random sampling (also called probability sampling or random selection) is a way of selecting members of a population to be included in your study. In contrast, random assignment is a way of sorting the sample participants into control and experimental groups.
When carrying out an experiment the factor that the researcher manipulates is known as the?
The independent variable (IV) is the characteristic of a psychology experiment that is manipulated or changed by researchers, not by other variables in the experiment. For example, in an experiment looking at the effects of studying on test scores, studying would be the independent variable.
How to assess the effect of televised violence on aggression?
To assess the effect of televised violence on aggression, researchers plan to expose one group of children to violent movie scenes and another group to nonviolent scenes. To reduce the chance that the children in one group have more aggressive personalities than those in the other group, the researchers should make use of
Who concluded that African Americans are better athletes than other racial groups?
After noting that a majority of professional basketball players are African-American, Ervin concluded that African-Americans are better athletes than members of other racial groups. Ervin' s conclusion best illustrates the danger of
How long did Redelmeier and Tversky follow patients with arthritis?
Redelmeier and Tversky (1996) followed 18 patients with arthritis for 18 months. Patients were asked to record their pain and joint tenderness, while researchers documented changes in the weather. Nearly all patients believed that their condition was associated with weather changes, when the actual correlation was near zero. These participants need to be reminded that
