Joey has shot up in height over the past year, has developed a deeper voice and is starting to grow facial hair. he is preoccupied with the pursuit of independence and identity and is spending more time with friends and less with family.
which of the following periods of development is joey in?

a) middle childhood
b) adolescence
c) early adulthood
d) late adulthood

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.

What is the best way to achevieve long-term financial goals

What was the purpose of john bells constitutional union party in the election of 1860