Which of the following is an example of negative correlation? a. People who spend more time exercising tend to weigh less. b. Teenage females tend to have fewer speeding tickets than teenage males. c. Students with lower IQ scores tend to have lower grades. d. As hours studying for a test decrease, so do grades on that test. e. Students’ shoe sizes are not related to their grades.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

The biggest component / ingredient of summer time smog is

Imagine you are driving down the highway and reading a sign that states save the planet don't litter which technique of policy enactment is being used