Mrs. stevens asked four of her students to research how running water affects the shape of a stream over time. to find the morgan performed an internet search, read books in the school library, and looked at articles in scientific journals. casey built a model of a stream and performed controlled experiments. maria observed several different streams near her house for a few hours. jamal interviewed local scientists who routinely study stream flows and shapes. which student's research most likely produced the weakest scientific evidence?

Is it true the ancient egyptians created a calendar that had 10 days in a week

The citizens if the united states live and work in a

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a researcher conducts a comparison of the comments made in a publicly available blog and the blogger's comments on a similar topic in a weekly magazine. undergraduate students in a field methods class are assigned a research question and asked to interview another classmate, to be followed by a class discussion on interview techniques. a cognitive psychologist enrolls undergraduate students for a computer-based study about the effect of mood on problem-solving behaviors. a researcher sets up a meeting with the superintendent of a large and diverse public school system to get data about the ethnic composition of the school system and the number of students receiving free lunches.