Final Exam

Front 1

the nurse researcher is reading about bivariate descriptive stats. bivariate descriptive stats describes how many relationships between variables?

Back 1

2

Front 2

what is the name for the shape of the distribution that occurs when the nurse researcher has a bell shaped curve distribution?

Back 2

normal

Front 3

what is the highest measurement level

Back 3

ratio

Front 4

what type of data can researchers summarize and describe with descriptive stats?

Back 4

quantitative

Front 5

what index expresses the estimated proportion of people who would be spared from an adverse outcome through exposure to an intervention

Back 5

absolute risk reduction

Front 6

what is standard deviation

Back 6

the average amount of deviation of values from the mean and is calculated for every score

Front 7

the nurse researcher is examining how spread out the data is. which are measures of variability

Back 7

range and variance

Front 8

what is the value that occurs most frequently in a distribution

Back 8

mode

Front 9

correlation coefficients describe the direction and magnitude of a relationship between how many variables

Back 9

2

Front 10

there are 4 level of measurement. what is nominal measurement

Back 10

classification of characteristics into mutually exclusive categories

Front 11

what is ordinal measurement

Back 11

ranking of objects based on their relative standing on an attribute

Front 12

the independent is the treatment group. the dependent is the infants length of stay in the hospital after birth. what is the appropriate statistical test

Back 12

ANOVA

Front 13

what is the major factor affecting the standard of error of the mean

Back 13

sample size

Front 14

the independent variable is weight gain during pregnancy. the dependent variable is the infants birth weight. what is the appropriate test statistic

Back 14

pearson r

Front 15

what occurs with type II error

Back 15

there is a false negative relationship between research variables

Front 16

the nurse researcher is reading about standard deviation of a sampling distribution. what is this called

Back 16

standard error

Front 17

what does hypothesis testing through statistical procedures enable researchers to do

Back 17

make objective decisions about the validity of the hypothesis

Front 18

what is a null hypothesis

Back 18

there is no relationship between the variables

Front 19

what must the nurse researcher estimate is power analysis

Back 19

effect size

Front 20

what does inferential statistics permit the researcher to do

Back 20

generalize to a population based on data form a sample

Front 21

what occurs with type I ERROR

Back 21

there is a false positive relationship based on the data from the sample

Front 22

stats inference consists of two approaches: estimating parameters and testing hypotheses. what is point estimation

Back 22

provides a single descriptive value of the population estimate

Front 23

a 95% confidence elevel is associated with how many SD units

Back 23

1.96

Front 24

small samples are problematic in multiple regression and other multivariate procedures. what type of errors can inadequate sample size lead to

Back 24

type II

Front 25

multivariate stats procedures are increasingly being used in nursing research to untangle complex relationships among a minimum of how many variables

Back 25

3

Front 26

what is linear regression

Back 26

make predictions about the values of one variable based on values of a second variable

Front 27

what is multiple simultaneous regression

Back 27

enters all predictor variables into the regression equation at the same time

Front 28

what is dependent variable of interest for survival analysis

Back 28

time

Front 29

what is multiple regression

Back 29

methods of predicting a continuous dependent variable on the basis of two or more independent variables

Front 30

what is beta weight

Back 30

standardized regression coefficient

Front 31

what is statistical procedure when a nurse researcher wants to predict whether pressure ulcers develop n clients with fractured hips using age, weight, gender as predictors

Back 31

discriminant analysis

Front 32

one approach to estimate sample size needs the ratio of a predictor variables to total number of cases. some experts recommend a ratio of 20 to 1 for which regression

Back 32

simultaneous and hierarchal

Front 33

with 2 or more independent variables, the index is the multiple correlation coefficient or R. What is the range for R?

Back 33

0-1

Front 34

a meta-summary involves developing a list of abstracted findings from the primary studies. what is the percentage of studies that contain a given findings called.

Back 34

frequency

Front 35

what is a publication bias

Back 35

stems from under representation of nonsignificant findings in the published literature

Front 36

what is considered an advantage of meta analysis

Back 36

enhanced power

Front 37

constructing a funnel plot wil assist in determining how may studies with what type of results to reverse the conclusion of a significant finding

Back 37

nonsignificant

Front 38

evidence based practice relies on rigorous integration of research evidence on a topic through systematic reviews. what is systematic review?

Back 38

use of carefully developed sampling and data collection procedures that are spelled out in advanced in a protocol

Front 39

what is similar in the steps for both quantitative and qualitative integration

Back 39

searching the literature for primary studies

Front 40

what is a common scenario in meta analysis

Back 40

comparing two groups on a continuous outcome