AP PSYCHOLOGY

Detailed explanation-1: -For example, if a researcher wants to study heart disease within a particular community, they can use a descriptive cross-sectional study. To do this, they focus on describing how heart disease affects the group, which could mean determining the age group or gender that heart disease affects the most.

Detailed explanation-2: -Some of the more common methods include surveys, interviews, observations, case studies, and portfolios. The data collected through these methods can be either quantitative or qualitative.

Detailed explanation-3: -Cross-sectional studies are used both descriptively and analytically. Descriptive cross-sectional studies simply characterize the prevalence of a health outcome in a specified population. Prevalence can be assessed at either one point in time (point prevalence) or over a defined period of time ( period prevalence).

Detailed explanation-4: -Descriptive studies can involve a one-time interaction with groups of people ( cross-sectional study ) or a study might follow individuals over time ( longitudinal study ).