Author Question: The differences between groups of people who are 10 years apart in age are called __________ ... (Read 68 times)

rmenurse · **on:** Jun 22, 2018

The differences between groups of people who are 10 years apart in age are called __________ effects.

A) cross-sequential
B) placebo
C) cohort
D) covariance

Question 2

Athena is designing a study to see how people's head circumferences change between childhood and adulthood. Unfortunately, she has only a few months in which to perform her study, so she decides to measure groups of 100 5-year-old children, 100 10-year-old children, 100 15-year-old children, 100 20-year-old adults, 100 25-year-old adults, and 100 30-year-old adults. Her research design is

A) cross-sectional.
B) longitudinal.
C) latitudinal.
D) cross-sequential.