Perry, a psychologist, found an interesting correlation betw…

Perry, a psychologist, found an interesting correlation between people’s physical health and how many friends they have. However, he suspects that happiness, which he did not measure, could contribute both to better health and to having a higher number of friends. This is an example of (a/an) ______________.

While playing peek-a-boo, baby Jacob becomes upset when his…

While playing peek-a-boo, baby Jacob becomes upset when his mother hides her face behind a blanket. Apparently Jacob thinks that he cannot see his mother, his mother has disappeared. According to Piaget, this is because Jacob is in the ___________ stage of cognitive development.

Dr. Zen is interested in answering research questions regard…

Dr. Zen is interested in answering research questions regarding why certain treatments work. Currently, he is evaluating what aspect of cognitive behavioral therapy (CBT) makes the treatment effective. He assigns some participants to receive full CBT, and others to a control group with no treatment. After analyzing his results, Dr. Zen is able to conclude that the cognitive and behavioral components contribute to the efficacy of CBT. Dr. Zen has conducted (a/an) ______________

Kaitlin notices that every day she feels sleepy, hungry, or…

Kaitlin notices that every day she feels sleepy, hungry, or alert at the same time as the day before. Her hormone levels and body temperature also fluctuate regularly throughout the day. The pattern of regular changes over 24 hour periods is called (the) ____________