Lecture 1

Question 1

sample

Answer 1

subcollection of members drawn from studies

Question 2

sample

Answer 2

subcollection of members drawn from studies

Question 3

the goal of statistics is to ___ a sample?

a. populate
b. randomize
c. prepare

Answer 3

randomize

Question 4

3 steps involved in conducting a statistical study

Answer 4

prepare
analyze
conclude

Question 5

true/ false: every analysis should begin with a appropriate graphs

Answer 5

true

Question 6

achieved in a study when we get a result that is very unlikely to occur by chance

Answer 6

statistical significance

Question 7

common sense which might suggest practical implications of the results

Answer 7

practical significance

Question 8

true/false correlation does not imply causality.

Answer 8

TRUE!!! big stats point…hear it over and over again

Question 9

`numerical measurement describing some characteristic of a population

Answer 9

sample

Question 10

numerical measurement describing some characteristic of a population

Answer 10

sample

Question 11

consists of names or labels (representing categories)

Answer 11

categorical data

Question 12

two types of ways QUANTITATIVE data can be distinguished

Answer 12

discrete and continuous

Question 13

four categories of measurements

Answer 13

1 nominal

2. ordinal
3. interval
4. ratio

Question 14

categories only

Answer 14

nominal

Question 15

collect data using some combination of the basic sampling methods

Answer 15

multistage sampling

Question 16

data are observed, measured, and collected at one point in time

Answer 16

cross sectional study

Question 17

data are collected from the past by going back in time

Answer 17

retrospective

Question 18

data are collected in the future from groups sharing common factors

Answer 18

prospective (called cohorts)

Question 19

repetition of an experiment on more than one subject

Answer 19

replication

Question 20

technique in which the subject doesn’t know whether he or she is receiving treatment or a placebo

Answer 20

blinding

Question 21

occurs in an experiment when the experimenter is not able to distinguish between the effects of different factors

Answer 21

confounding

Question 22

assign subjects to different treatment groups through a process of ____ ____ (2 words)

Answer 22

random selection

Question 23

carefully assign subjects to different tx groups so that those given each tx are similar in way that are important to the experiment

Answer 23

rigorously controlled design

Question 24

compare exactly two tx groups using subjects matched in pairs that are somehow related or have similar characterized

Answer 24

matched pairs design