definitions

Question 1

• lowest level of measurement, labels, categorical
• gender, marital status, blood type
• has disadvantages because most people likely fall on a scale

Answer 1

nominal

Question 2

numbers that convey information about specific attributes

-level of education 1-4

Answer 2

ordinal

Question 3

numbers that are assigned both ordering the attribute and the distance between them
-temperature

Answer 3

interval

Question 4

numbers are assigned indicating attributes and the distance between attributes , has a defined zero
-BP, weight, temperature when used on k

Answer 4

ratio

Question 5

know the direction before the test is performed

-fat people eat fast

Answer 5

one tailed

Question 6

don’t know the direction before the test is performed

-not sure if celox will be better than quick clot

Answer 6

two tail

Question 7

two different populations analyzed against one another

Answer 7

independent t test

Question 8

there is no significant difference in the groups

choices;
null
relative
reject the null

Answer 8

null

Question 9

there is significance difference between the groups

null
relative
reject the null

Answer 9

alternative

Question 10

there is significant difference between the groups p <0.05

Answer 10

reject the null

Question 11

compare the mean of a single sample to a known population mean
-cholesterol versus known average

Answer 11

one sample t test

Question 12

compare the mean of related samples
-before and after pretest/posttest
same participants

Answer 12

paired t test

Question 13

t score formula

Answer 13

(z times 10) plus fifty

Question 14

z score formula

Answer 14

(raw score - population mean) divided standard deviation

Question 15

If you have pretest difference in mnova run what test?

Answer 15

ancova

Question 16

discrimination index formula

Answer 16

agree/total ie agree + disagree

Question 17

accuracy formula

Answer 17

(tested machine value - lab value) / lab value
(finger stick glucose minus serum glucose) / serum glucose
95 - 96 =1 / 96 = 0.01 =99% accurate

Question 18

beta equals what?

Answer 18

beta = 4 times alpha
alpha 0.01=96 beta
beta 0.05=80 beta`

Question 19

BP before and after, compare groups, before and after by group
losartan vs control

Answer 19

mixed design

Question 20

levine’s test
significance >0.05
use what number?

Answer 20

top number
greater than 0.05 meaning no significant difference is test subjects or whatever
-this what you want. homogeneity

Question 21

saying there is a difference but there ain’t

Answer 21

type 1 error

Question 22

if a researcher rejects the null what is he saying?

Answer 22

there was significant difference between the groups

(null-no sig different in the groups

Question 23

survival yes or no
vomit yes or no
one nominal variable as independent and dependent variable

Answer 23

chi square

Question 24

same participants over time

Answer 24

within subjects

Question 25

if you had an independent variable that was ethnicity with three groups hispanic, white, black, and a dependent variable of blood pressure.
which test would you run?
-compare mean of two or more variables that vary on single independent variable

Answer 25

Anova (univariant)

Question 26

compare two different groups.

one gets the intervention while other does not.

Answer 26

between subjects test

Question 27

anova doesn’t tell you where the significance lies so you have to run a

Question 28

continuous data is what

Answer 28

ratio or interval data