Which type of research study is a "compromise" that examines a number of different age groups over several points in time?
A. longitudinal
B. sequential
C. cross-sectional
D. experimental
Answer: B
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Explain how a researcher interested in cognitive development and a researcher interested in social development might each study academic achievement in middle school children.
What will be an ideal response?
Solve the problem.You just put $1909 in a CD that is expected to earn 7% compounded monthly, and 
in a savings account that is expected to earn 4% compounded annually. Determine when, to the nearest year, the values of your two investments will be the same.
A. 59 years B. 18 years C. 32 years D. 46 years
Complete the identity.sin (2?) tan ? + cos (2?) = ?
A. cos (3?) B. 1 C. sec (2?) D. 2 cos (2?)
Assume you have a balance of $3200 on your credit card that you want to pay off. Calculate your monthly payment and total payment under the given conditions. Assume you make no additional charges to the card.The credit card APR is 20% and you want to pay off the balance in 3 years.
A. $101.85; $3666.48 B. $178.92; $6441.16 C. $142.88; $5143.67 D. $118.92; $4281.24