AP PSYCHOLOGY

Detailed explanation-1: -Descriptive studies can be of several types, namely, case reports, case series, cross-sectional studies, and ecological studies. In the first three of these, data are collected on individuals, whereas the last one uses aggregated data for groups.

Detailed explanation-2: -The purpose of descriptive observations is to give an accurate account of an event or action for which the observer does not modify, assess, judge or make inferences about what he or she is observing. The observer attempts to capture and represent the event or action using words or phrases that are nonjudgmental.

Detailed explanation-3: -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. Quantitative data are typically analyzed and presenting using descriptive statistics.