Why would a researcher interested in making a causal claim NOT do an experiment?
There may be ethical limitations of manipulating a variable
. Why is the statistical validity of a multiple regression design more complicated to interrogate than a bivariate design? It is harder to detect outliers.
Which of the following is a likely reason for why a researcher interested in making a causal claim would do a correlational study instead of an experiment?
Another reason that researchers would choose to use a correlational study rather than an experiment is that
the statistical relationship of interest is thought to be causal
, but the researcher cannot manipulate the independent variable because it is impossible, impractical, or unethical.
Which of the following is a probable reason for Dr Farah’s choice not to conduct an experiment?
Which of the following is a probable reason for Dr. Farah’s choice not to conduct an experiment?
It would be unethical to manipulate whether students are told to do homework for a semester
. For Dr.
Which of the following is not a reason that a researcher might include debriefing in their study?
Which of the following is NOT a reason that a researcher might include debriefing in their study?
It prevents researchers from being sued.
Why is it problematic when journalists only report on a single study?
Why is it problematic when journalists only report on a single study?
It can lead people to value one study over decades of previous research
.
How do you determine a causal relationship?
- The two variables must vary together.
- The relationship must be plausible.
- The cause must precede the effect in time.
- The relationship must be nonspurious (not due to a third variable).
What type of research is cause and effect?
1. Causal or
Experimental Research
. When most people think of scientific experimentation, research on cause and effect is most often brought to mind. Experiments on causal relationships investigate the effect of one or more variables on one or more outcome variables.
Which is a method for preventing selection effects?
Matching
has the advantage of randomness because each member of the matched pair is randomly assigned, the technique prevents selection effects and ensures that the groups are equal on some important variable before the manipulation of the iv. Independent groups: different participants are exposed to each condition.
When determining mediation how many steps are necessary?
There are
6 steps
to a formal mediation; 1) introductory remarks, 2) statement of the problem by the parties, 3) information gathering time, 4) identification of the problems, 5) bargaining and generating options, and 6) reaching an agreement.
Which of the following is a reason why multiple regression designs are inferior?
According to the textbook, which of the following is a reason that multiple regression designs are inferior to experimental designs?
They can only control for third variables that are measured.
What is the process of debriefing?
Debriefing is a
structured learning process designed to continuously evolve plans while they’re being executed
. It originated in the military as a way to learn quickly in rapidly changing situations and to address mistakes or changes on the field.
How do you form a debrief?
- Study title.
- Researcher’s name and contact information, if applicable, for follow-up questions.
- Thank participants for taking the time to participate in the study.
- Explain what was being studied (i.e., purpose, hypothesis, aim). …
- Explain how participants were deceived.
When deception is used a participant should be debriefed?
The debriefing is an essential part of the informed consent process and is mandatory when the research study involves use of deception. The debriefing provides participants with a full explanation of the hypothesis
being tested
, procedures to deceive participants and the reason(s) why it was necessary to deceive them.
What is science and technology reporting?
Science and Technology Reporting (MAC 414) is a
one-semester, three- credit unit course
. It is designed to acquaint students with the knowledge, principles and skills of science and technology reporting. … There is also provision for tutor-marked assignments and students are advised to handle this with all seriousness.
What is an example of a causal relationship?
Causality examples
Causal relationship is something
that can be used by any company
. … However, we can’t say that ice cream sales cause hot weather (this would be a causation). Same correlation can be found between Sunglasses and the Ice Cream Sales but again the cause for both is the outdoor temperature.
What is the only way to determine a causal relationship between two variables?
Fundamentally, the only way to establish a causal relationship is
to rule out other plausible explanations for the correlation
.
