Cards in this guide (23)
Auto correlation and cross correlation
Auto correlation is the correlation of one signal with
itself.
Cross correlation is the correlation of one signal with a
different signal.
The independent variable is also called the
What causes change in a dependent variable
The dependent variable is dependent on the independent variable,
so when the independent variable changes, so does the dependent
variable.
A sample that uses only people who are easy to contact is called a
Question-wording bias in a survey can
affect the results of the survey.
In a survey on women's attitudes toward men which of these could introduce interviewer-induced bias
If all the interviewers are men
A survey in a magazine that asks readers to return the survey would result in
If every 10th student on a nonalphabetized list of names was chosen from your school to answer a survey this group would be an
A dependent variable is associated mainly with
the result of an experiment.
A subject is given a sugar pill and is told it may treat anxiety This person may experience
the placebo effect. CHIKA CKIKA YEAH!
The independent variable is associated mainly with
the treatment that the researcher controls directly.
A sample that does not reflect the population would result from
In a survey that ased about alcohol use in high school students which of these is an important measure for controlling bias
getting a random sample from each grade level
Unlike an observational study an experiment can prove
The essence of an experiment as opposed to an observational study is to
change one or more factors and observe the effects
The nature versus nurture question asks
What is the interaction between genes and environment? Apex-
(;
What would be your independent variable be in a experiment to see if eating breakfast increased concentration on math assignments
The placebo effect happens when
Since one group of patients would be given the placebo (a tablet
or capsule with absolutely no medicinal qualities), its sole
purpose is to install a false hope in the group that they are
receiving helpful medication.
Another group of patients are given a real medicine. If the
genuine prescription begins to work for the second group and they
begin making strides toward recovery, it becomes obvious that the
placebo is not worthy of further use.
Which experiment method is important for controlling bias
Randomly assigning students to the two different groups
How do you treat ice pick headaches
Ice Pick Headaches are typically treated with anti-inflammatory medications. Some patients find that taking a preventive for them will also help.
An experiment is designed to compare the differences in health outcomes between people who are visited in the hospital by therapy cats and people who are not. Which of these is the independent variabl
An experiment finds that teens who play video games have increased critical thinking skills. What might have been the hypothesis for this experiment
Teens who ply video games show better thinking skills
If you were doing a research study on sleep and student achievement which might be the hypothesis
The amount of sleep a student gets affects the students achievement
