Skip to Main Content

++

Research involves a controlled, systematic approach to obtain an answer to a question.1 A number of research types are recognized:

++

  • Experimental research: involves the manipulation of a variable and then measuring the effects of this manipulation.1 A variable is a measurement of phenomena that can assume more than one value or more than one category (see later).1
  • Nonexperimental research: does not manipulate the environment but may describe the relationship between different variables, obtain information about opinions or policies, or describe current practice.1
  • Basic research: generally thought of as laboratory-based research in which the researcher has control over nearly all aspects of the environment and subjects.1
  • Clinical or applied research: refers to research that seeks to solve practical problems by finding solutions to everyday problems, cure illness, and develop innovative technologies.

++

Statistics is a branch of applied mathematics concerned with finding patterns in data and inferring connections between events.2 A number of statistical terms and definitions are outlined in Table 3-1.

++
Table Graphic Jump Location
Table 3-1. Statistical Terms and Definitions
++
Table Graphic Jump Location
Favorite Table | Download (.pdf) | Print
Study Pearl

Much of the initial groundwork in statistics concerns making an accurate guess, or hypothesis.

++

Populations and Samples

++

A population consists of all subjects (human or otherwise) that are being studied.

++

  • Prevalence: the proportion of a population who has a particular disorder or condition at a specific point in time.
  • Incidence: a rate of development of new cases of a disorder in a particular at-risk population over a given period of time.
  • Parameter: a characteristic or measure obtained by using all the data values from a specific population.

++

...

Want remote access to your institution's subscription?

Sign in to your MyAccess profile while you are actively authenticated on this site via your institution (you will be able to verify this by looking at the top right corner of the screen - if you see your institution's name, you are authenticated). Once logged in to your MyAccess profile, you will be able to access your institution's subscription for 90 days from any location. You must be logged in while authenticated at least once every 90 days to maintain this remote access.

Ok

About MyAccess

If your institution subscribes to this resource, and you don't have a MyAccess profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus.

Subscription Options

AccessPhysiotherapy Full Site: One-Year Subscription

Connect to the full suite of AccessPhysiotherapy content and resources including interactive NPTE review, more than 500 videos, Anatomy & Physiology Revealed, 20+ leading textbooks, and more.

$595 USD
Buy Now

Pay Per View: Timed Access to all of AccessPhysiotherapy

24 Hour Subscription $34.95

Buy Now

48 Hour Subscription $54.95

Buy Now

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.