# Statistics Chapter 1

Home > Preview

The flashcards below were created by user koreanjohn32 on FreezingBlue Flashcards.

1. constructs
attributes or characteristics that cannot be directly observed

(i.e. intelligence, hunger, anxiety)
2. operational definition
• defines a construct in terms of external behaviors that can be observed and measured
• (i.e. IQ test performance, hours since eating)
3. discrete variable
separate, indivisible categories

(i.e. male, female)
4. continuous variable
infinite number of possible values; each measurement is an interval that must be defined by boundaries
5. real limits
boundaries of intervals for scores; exactly 1/2 way between the scores above and below

• 1) upper real limit
• 2) lower real limit
6. nominal scale
set of categories that have different names; does not make any quantitive differences
7. ordinal scale
• set of categories that are organized in and ordered sequence corresponding to differences in magnitude
• (example: ranking - 1st, 2nd, 3rd place)
8. interval scale
series of ordered categories that form a series of intervals that are exactly the same (inches, seconds, lbs); zero is arbitrary and holds no value
9. ratio scale
anchored by a a zero point that represents complete absence; measures direction and size of magnitude
10. order of mathematical operations:
• 1. ( )
• 2. exponents
• 3. x or /
• 4. sigma
• 5. + or -

### Card Set Information

 Author: koreanjohn32 ID: 123896 Filename: Statistics Chapter 1 Updated: 2011-12-15 19:45:14 Tags: statistics Folders: Description: terms for chapter one Show Answers:

Home > Flashcards > Print Preview