1 / 5

RAT PREP 1

RAT PREP 1. Helpful Defintions. A hypothesis is a tentative statement that describes the relationship between two or more variables. A theory , or model, is a tentative explanation that tries to integrate and account for diverse findings on the same topic.

elmo-wyatt
Download Presentation

RAT PREP 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. RAT PREP 1

  2. Helpful Defintions • A hypothesis is a tentative statement that describes the relationship between two or more variables. • A theory, or model, is a tentative explanation that tries to integrate and account for diverse findings on the same topic. • ---Theories are tools for explaining behavior and mental processes; they evolve and change as new evidence emerges, reflecting the self-correcting nature of the scientific enterprise.

  3. A sample is a selected segment of the larger group or population being studied. • A representative sample very closely parallels the larger group on relevant characteristics, such as age, sex, race, marital status, and educational level. • -----To help ensure that researchers select a representative sample, researchers commonly use random selection, which means that every member of the larger group has an equal chance of being selected for inclusion in the sample. • Researchers use random assignment to assign participants to different experimental groups.

  4. 11. Correlation ONLY indicates a relationship between 2 or more variables. Causation can only be determined when the experimental method is used.

  5. What is the basic goal of the experimental method? • A) describe and predict naturally occurring phenomena • B) discover new operational definitions • C) demonstrate that one variable causes changes in another variable • D) investigate a single subject in depth

More Related