week 6

Question 1

measures of central tendency

Answer 1

“MMM” mean, median, mode

Question 2

normal distribution

Answer 2

based on repeated measures in a large sample of people

Question 3

when variables are measured in a large sample of people the distribution takes on what kind of shape?

Answer 3

bell shape

Question 4

nonnormally distributed data is

Answer 4

skewed

Question 5

mean and mode are reported variables with a

Answer 5

skewed distribution

Question 6

mean and standard deviation are reported with variables that have

Answer 6

bell shaped distribution

Question 7

intra-rater reliability

Answer 7

includes only 1 therapist

Question 8

inter-rater reliability

Answer 8

includes more than 1 therapist

Question 9

null hypothesis

Answer 9

groups are considered to be equal

Question 10

type I error

Answer 10

falsely conclude there is a statistically significant difference when there is actually no difference

Question 11

type II error

Answer 11

falsely conclude that there is no statistically significant difference between groups when there is

Question 12

nominal scales

Answer 12

variables are in categories no specific order

Question 13

if there are only two categories then scale is

Answer 13

dichotomous
example: hospital admission - admitted or not admitted

Question 14

ordinal scales

Answer 14

variables are in categories that are ordered
ranking typically ranges from most to least

Question 15

ratio scales

Answer 15

variables are ordered precisely and continously
measured intervals on the scale are equal
ratio intervals do not have a meaningful zero

Question 16

Interval scales

Answer 16

Measured precisely and share properties of equal intervals with ratio scales. These scales have a meaningful zero value.