The hypothesis is something that can be tested. What did the researchers conclude about how caffeine consumption affects memory function from the experiment? …
Caffeine improves memory function in elderly people.
Which of the following statements is most correct about the relationship between correlation and causation?
Which of the following statements is most correct about the relationship between correlation and causation? …
Correlation indicates the possibility of a causal relationship
, but it does not prove causation.
What statement describes a correlation between two variables?
when two variables correlate, it strongly implies that
a third unknown variable is the causal factor
. O Strong correlations among variables are evidence of causation by the independent variable. O Either variable might be the cause, or both variables might be influenced by a third unknown variable.
What are the most reliable scientific results published?
What are the most reliable scientific results published? What are the criteria for a good hypothesis? Rank the following in order from MOST reliable to LEAST reliable source of information:
Scientific journals magazine article
written by scientist magazine article written by journalist public opinion.
How can statistics be used in a scientific study quizlet?
How can statistics be used in a scientific study?
They determine whether observed differences are significant or a result of chance
. You conduct a clinical trial to test whether a new drug relieves the symptoms of arthritis better than a placebo.
Does a correlation prove causation?
For observational data,
correlations can’t confirm causation
… Correlations between variables show us that there is a pattern in the data: that the variables we have tend to move together. However, correlations alone don’t show us whether or not the data are moving together because one variable causes the other.
Why is correlation not causation?
“Correlation is not causation” means that
just because two things correlate does not necessarily mean that one causes the other
. … Correlations between two things can be caused by a third factor that affects both of them. This sneaky, hidden third wheel is called a confounder.
What is the relationship between correlation and causation quizlet?
Correlation indicates the the two numbers are related in some way. Causation
requires more proof that there is no lurking variable
that creates the relationship.
What is the relationship between correlation and causation?
A correlation between variables, however, does not automatically mean that the change in one variable is the cause of the change in the values of the other variable. Causation indicates that one event is the
result of
the occurrence of the other event; i.e. there is a causal relationship between the two events.
Why is it important to know the difference between correlation and causation?
When changes in one variable cause another variable to change, this is described as a causal relationship. The most important thing to understand is that
correlation is not the same as causation
– sometimes two things can share a relationship without one causing the other.
How do you know if scientific information is reliable?
- 1) Accuracy. Verify the information you already know against the information found in the source. …
- 2) Authority. Make sure the source is written by a trustworthy author and/or institution. …
- 3) Currency. …
- 4) Coverage.
Are scientific journals accurate?
Most journals are reliable
. But at the bottom of the list in terms of impact lie two types of journals: respectable journals that publish peer reviewed results that are solid but of limited interest – since they may represent dead ends or very specialist local topics.
What comes after conclusion in the scientific method?
Based on the conclusions drawn from the data, the researcher will then find
more evidence to support the hypothesis
, look for counter-evidence to further strengthen the hypothesis, revise the hypothesis and create a new experiment, or continue to incorporate the information gathered to answer the research question.
Which type of research uses statistics quizlet?
Quantitative research
is research that uses statistical methods. Both kinds of research are used in sociology.
What are the two major purposes of statistics?
Statistics is the study and manipulation of data, including ways to gather, review, analyze, and draw conclusions from data. The two major areas of statistics are
descriptive and inferential statistics
. Statistics can be used to make better-informed business and investing decisions.
Which type of research uses statistics?
Quantitative research
is statistical: it has numbers attached to it, like averages, percentages or quotas. Qualitative research uses non-statistical methods.
