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One way people can impact plants is by producing oxygen for the plants.

Cupcake University recently switched to a new brand of COVID test, which—like all COVID tests—claims to measure whether or not a person has COVID. Unfortunately, the test has a high rate of false positives. As many as 50% of students who test positive do not actually have COVID. Based on this information, there appears to be a problem with the test’s…

Dr. Collier conducted a study to test the relationship between frequency of fast food consumption and academic achievement in fifth-grade children. Based on this information, which of the following is a constant in her study?

Which type of source is most likely to undergo a rigorous peer review process?

Claudia reads a research study where the authors reported that, in the United States, first-generation immigrant children tend to perform better in school than native-born children. She thinks to herself, “This can’t be right. I’m a first-generation immigrant and I did terrible in school!” Based on this information, Claudia may need to be reminded that… 

In a 2016 study by Fancourt, Burton, and Williamson, men and women played the game “Operation” while listening to different types of music. Males performed worse when listening to AC/DC than when listening to Mozart, but female participants’ performance at playing the game did not differ based on music. Based on this information, how many variables were in the study?

Which of the following statements about validity is true?

When peer reviewing an original research study, Dr. Montes is most likely to provide commentary about…

Producers and consumers of research are similar in that they both…

Dr. Bloom is an evolutionary psychologist who is discussing the theory that cooperative hunting evolved in humans because, in the past, it helped them to survive and reproduce. A student raises her hand and points out that this theory would be difficult to test because it is impossible to go back in time and conduct research during humans’ hunter-gatherer days. In other words, this theory…