As described in your text, Brown and Finn (1982) found that attitudes regarding alcohol were somewhat different for 12-year-olds, 15-year-olds, and 17-year-olds. All measures were taken during the same year from children of different ages. This type of research is an example of the research method called:.
a. cross-sectional
b. case-study
c. longitudinal.
d. experimenta

Anew 2-lane road is needed in a part of town that is growing. at some point the road will need 4 lanes to handle the anticipated traffic. if the city's optimistic estimate of growth is used, the expansion will be needed in 4 years and has a probability of happening of 40%. for the most likely and pessimistic estimates, the expansion will be needed in 8 and 15 years respectively. the probability of the pessimistic estimate happening is 20%. the expansion will cost $ 4.2 million and the interest rate is 8%. what is the expected pw the expansion will cost?

The following information relates to the pina company. date ending inventory price (end-of-year prices) index december 31, 2013 $73,700 100 december 31, 2014 100,092 114 december 31, 2015 107,856 126 december 31, 2016 123,009 131 december 31, 2017 113,288 136 use the dollar-value lifo method to compute the ending inventory for pina company for 2013 through 2017.

Four students are at an extracurricular activity fair at their high school and are trying to decide which clubs to join. some information about the students is listed in this chart: which describes which ctso each student should join?