WEEK 2 Scientific Method / Advertising Health Products (C2/3) Flashcards
Cross Sectional Research Design
This is a study of a group of people at a given point in time. It could be carried out by administering a survey on a particular date in a given year
Retrospective Research Design
This is a study involving past records of a group or groups over a long period of time (years) to assess risk factors of a disease such as lung cancer
Prospective Research Design
This could involve studying a group over a long period of time (years) to assess risk for getting a disease sometime in the future such as diseases as a result of smoking cigarettes
Longitudinal Research Design
This is a study of the same individuals (cohort group) over a long period of time on the same health variables and risk factors
Descriptive Design
may include surveys (quantitative) or qualitative studies. Surveys are used to obtain information about health behaviors or other topics by asking groups of individuals to complete a pen and pencil, computer, Internet, telephone or person-to-person set of questions
Analytical Studies
are quantitative and are classified as observational, experimental, and quasi-experimental type studies
Observational Studies
assess a hypothesis and are conducted by using cohort groups, cross-sectional groups and case-control studies
Experimental Studies
involve randomly selecting subjects and then randomly assigning them into either a treatment or a control (comparison) group
Quasi-expiremental studies
involve comparison groups that are not randomly selected, and many factors may cloud (or confound) the findings. Confounding factors (variables) may relate to both the cause and effect or outcome
Correlation studies
are used to assess the relationship of one or more variables to one or more other variables
Prediction Statistics
also called inference studies, assess the cause and effect of variables
Example: team of researchers want to assess if college students who eat their meals on campus at dining halls offering healthy food choices will at some point in time have gained less weight
Epidemiological Studies
analyze data from various population groups over a point in time or for years
Characteristics of Scientific Testing
- self correcting research characteristics
- objectivity
- findings must be made public
- experiments must be reproducible by other scientists
- experiments must be empirical
- science should be predictive
what does objectivity mean
- Findings must be derived from a biased research, means that there should not be any bias based on the researchers personal beliefs, perceptions, values or emotions
- Hypothesis, research questions, quantitative, qualitative research
Evidence Based Research
especially important for clinical practices whether it is medicine, nursing, psychology, speech language and hearing or the many alternative practices offered today
- Means that the study evidence or result is integrated with clinical expertise and patient values when making decisions about patient care
Primary goals: integration of best research practice, interests and values of patient and clinical skills