Quantitative Research Pt. 3

Question 1

What are characteristics of descriptive statistics?

Answer 1

Describe, organize, summarize, data reduction. Examples: frequencies, measures of central tendency, measures of variability (standard deviation-z scores, variance-the standard deviation squared, range)

Question 2

inferential statistics help us draw what?

Answer 2

Inferences or conclusions about population from the sample

Question 3

Describe nominal scales of measurement

Answer 3

Mutually exclusive categories

Question 4

Describe ordinal scales of measurement

Answer 4

Mutually exclusive categories, fixed ordering

Question 5

Describe interval scales of measurement

Answer 5

Mutually exclusive categories, fixed ordering, equal spacing

Question 6

Describe ratio scales of measurement

Answer 6

Mutually exclusive categories, fixed ordering, equal spacing, absolute zero

Question 7

What scales are associated with nonparametric statistics?

Answer 7

Nominal scales, ordinal scales

Question 8

Are parametric or non-parametric statistics less powerful?

Answer 8

Nonparametric

Question 9

______statistics often use tests that are person’s name

Answer 9

Nonparametric

Question 10

What scales are associated with parametric statistics?

Answer 10

Interval, ratio

Question 11

Parametric statistics require ____ to meet assumptions

Answer 11

data

Question 12

Describe parametric statistics

Answer 12

normally distributed data, equal variability

Question 13

One-tailed T test have a ______ hypothesis

Answer 13

directional (we think one group will do better or worse)

Question 14

Two-tailed T tests have a ______ hypothesis

Answer 14

non-directional

Question 15

There will be a difference between groups. Stricter test; harder to find significance.

Answer 15

There will be a difference between groups.

Question 16

What kind of t test is a stricter test and harder to find significance.

Answer 16

Two tailed