• 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

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/25

Click to flip

25 Cards in this Set

  • Front
  • Back
What are in vivo measurements?
Measurements taken in or on a living organism
What are in vitro measurements?
Measurements performed outside an organisms body
What is sampling error?
The tendency for statistics to fluctuate from one sample to another
What is point estimation?
Using sample data to calculate a single value
What is null hypothesis?
The hypothesis that no significant difference exists between groups
What is confidence interval?
A range of values around the mean, usually 95-99%
What is a type 1 error?
Rejecting a null hypothesis that is true. A "false positive"
What is the most frequently used alpha?
.05 and .01
What is a two-tailed test?
A statistical test that rejects the null hypothesis if there is no significance in either direction of the sample distribution. Example: There is no significant difference in IQ between males and females
What is a one-tailed test?
A statistical test that rejects the null hypothesis in a specified direction. It is the difference in two independent groups with one attribute Example: Women will not score higher than males in IQ
What are nonparametric tests?
Statistics that are applied to populations that do not assume normal distribution. They are more powerful in detecting population differences
What are parametric tests?
Statistical tests that are applied to populations that assume a normal distribution
What is a paired t-test?
A parametric statistical test in which there is one dependent group with two values.
Example: Student performance before and after drinking coffee
What does the median test score?
Deviations from the mean
What is the Mann-Whitney U Test?
It is the nonparametric version of the student t-test. It is used to test the null hypothesis that the means of two samples are equal. It is used when the sample size is too small or the populations do not assume normal distribution
What is enhancement of contrast effect?
A bias in which the viewing of something enhanced or mitigated is shown first to make the viewing of something else more enticing
What is halo effect?
The tendency to be influenced by other characteristics
What is a student t-test?
A statistical test of the null hypothesis that the means of two normally distributed populations are equal
What is a paired student t-test?
A statistical test that is performed when measurements are taken from the same subject because of some manipulation in the measurement
What is linear regression?
A PREDICTION about the values of one variable based on values of a second variable
What is multiple regression?
A PREDICTION about the values of a dependent variable on the basis of two or more independent variables
What does Fisher's exact test do?
It is an alternative to the chi-square test. It is used when data is divided into categories in two separte ways for SMALL sample sizes
What is Pearson's r?
Tells you the magnitude and direction of the correlation between two variables
What is the difference between Pearson's r and Spearman's rho?
No assumptions are made on the frequency distribution when using the rho
What is a power analysis?
A procedure for estimating sample size or the likelihood of making a type II error