Physical traces can involve both __________ and __________ ...

[londonang]

Physical traces can involve both __________ and __________ measures.
 
  a. archival; remnant
  b. erosion; accretion
  c. survey; interview
  d. remnant; reaction time

Question 2

Dr. Falcone is working on a study where she is interested in measuring age differences in problem-solving behavior across the lifespan.
 
  To conduct this study, she brings into her laboratory a group of 5-year-old, 10-year-old, 20-year-old, and 50-year-old subjects at one time, and measures the subjects' ability to solve a number of word problems. It appears as though Dr. Falcone is carrying out a
 
   a. longitudinal design.
   b. cross-sectional design.
   c. a true laboratory experiment with a high degree of internal validity.
   d. naturalistic observational design.

[bigcheese9]

Answer to Question 1

b

Answer to Question 2

b

[londonang]

Thank you

[bigcheese9]

No problem