Regression Analysis

studied byStudied by 0 people
0.0(0)
learn
LearnA personalized and smart learning plan
exam
Practice TestTake a test on your terms and definitions
spaced repetition
Spaced RepetitionScientifically backed study method
heart puzzle
Matching GameHow quick can you match all your cards?
flashcards
FlashcardsStudy terms and definitions

1 / 19

encourage image

There's no tags or description

Looks like no one added any tags here yet for you.

20 Terms

1

Hypothesis

A proposed explanation for a fairly narrow phenomenon or set of observations.

New cards
2

Theory

A set of principles that is well substantiated by repeated testing and explains a broad phenomenon.

New cards
3

Independent Variable

Variables that do not depend on any other variables.

New cards
4

Dependent Variable

Variables that depend on independent variables.

New cards
5

Nominal Scale

A scale where data can be categorized into different, unrankable groups.

New cards
6

Ordinal Scale

A scale where data can be categorized into different, rankable groups.

New cards
7

Interval Scale

A scale with rankable values in which value differences are meaningful, but not value ratios.

New cards
8

Ratio Scale

A scale with rankable values where both value differences and value ratios are meaningful.

New cards
9

Validity

An investigation of whether the question we are asking actually measures what we wish to measure.

New cards
10

Reliability

An investigation of whether the measurement is free from errors.

New cards
11

Population

The whole group we wish to investigate.

New cards
12

Sample

A subset of the population, ideally chosen at random.

New cards
13

Graphical Methods

Methods used after collecting data to summarize it; includes pie charts, bar charts, and box plots.

New cards
14

Mean

The average value in a data set.

New cards
15

Median

The middle value of a data set when organized in order.

New cards
16

Mode

The value that occurs most frequently in a data set.

New cards
17

Variance

A statistical measurement of the spread between numbers in a data set.

New cards
18

Standard Deviation

A measure of how dispersed the data is in relation to the mean.

New cards
19

Normal Distribution

A continuous probability distribution where values lie in a symmetrical fashion around the mean.

New cards
20

Standard Normal Distribution

A normal distribution with a mean of zero and standard deviation of one.

New cards
robot