The higher the HCA(hydroxycitric acid) concentration, the more mileage you are going to get out of the supplement. All brands will contain some amount of the extract from the actual fruit, but the amount of the active substance can vary a lot. There are plenty of fly-by-night products around(pretty much all of the ones in local stores) that only offer a very subpar purity.
Often times such supplements(like ones sold at WalMart) only contain 20 or less HCA- even when they are marked as higher(this was the conclusion of a recent study).
Descriptive research methods are pretty much as they sound -- they describe situations. They do not make accurate predictions, and they do not determine cause and effect. There are three main types of descriptive methods: observational methods, case-study methods and survey methods.
Psychology Definition of DESCRIPTIVE RESEARCH: An empirical investigation to test a hypothesis or to look at conditions, relationships.
Descriptive research can be used to increase understanding and knowledge about the behavior and thought processes of people. There are three main types of descriptive research commonly used in the field of psychology. Descriptive, or qualitative, methods include the case study, naturalistic observation, surveys, archival research, longitudinal research, and cross-sectional research. Experiments are conducted in order to determine cause-and-effect relationships.
Descriptive research design is a valid method for researching specific subjects and as a precursor to more quantitative studies. Whilst there are some valid concerns about the statistical validity, as long as the limitations are understood by the researcher, this type of study is an invaluable scientific tool. In psychology, techniques used to describe behavior include case studies, surveys, naturalistic observation, interviews, and psychological tests. Case studies. A case study is a method of obtaining information from the detailed observation of an .