• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/16

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

16 Cards in this Set

  • Front
  • Back

correlation

numerical measure that shows the direction and strength of any association between two quantitative variables

cross-sectional study

observations are taken at one point in time

retrospective (or case control) study

subjects who have a response outcome of interest ad subjects who have the other response outcome are compared on the explanatory variable

prospective study

follows subject into the future; identify a group or people and track them to see whether they develop and outcome of interest

simple random sampling

has size n subjects and each possible sample of size n has the same chance of being selected from the population

systematic sampling

randomly selecting a starting point, select every kth observation after that

cluster sampling

use random sampling to select clusters; sample everyone in the selected clusters

stratified sampling

chop up population into stratum (layers) and use random sampling to choose from each layer

replication

assigning multiple experimental units to the same treatment

blocking

a group of subjects that have similarities that could affect the experiment's outcome

randomized block design

first make blocks then assign treatments randomly to subjects within each block

sampling error

difference between sample and population results

non-sampling error

causes by incorrect collection, measurement, or recording

sampling bias

caused by sampling method or undercoverage

non-response bias

caused because some subjects cant be or wont be reached

response bias

subject gives wrong response or interviewer asks leading question,or question in asked in a confusing or misleading way