Test 3 Flashcards

(59 cards)

1
Q

In a survey every person surveyed is exposed to the same set of questions, same wording, phrasing, no variation
(exposed to standard stimulus) True/false

A

true

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2
Q

what is a probability sample

A

a random sample from a larger population

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3
Q

surveys are what? they have no manipulation of any variable

A

observational

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4
Q

surveys can test knowledge of individual on a certain subject T/F

A

T

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5
Q

Surveys do what in disease, health, behavior in the larger population, may suggest causal links that cannot be done in experiment

A

track trends

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6
Q

a survey at a single point in time, but emphasis on past behavior

A

cross sectional survey

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7
Q

multiple cross sectional surveys over time are called

A

trend study

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8
Q

Longitudinal studies are done how

A

over time

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9
Q

Follow subjects into future for specified

period of time (social science research) is what kind of survey

A

panel survey

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10
Q
Follow subjects into future until a
condition develops (epidemiological research) is what type of survey
A

cohort study

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11
Q

study looks at the exact same people at two different times is what

A

panel study

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12
Q

identifying subjects with a clinical condition and is retrospective study is called

A

case controlled study

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13
Q

Trend studies equal or dont equal panel study

A

dont equal

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14
Q

in surveys it is difficult to prove causes of the effect, not sure if there are other variable to the effect, hard to make strong causal inference
is true or false problems with surveys

A

True

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15
Q

people tend to do what when reporting effects

A

under report negative, over report positive

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16
Q

surveys can have poor external validity true or false

A

true

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17
Q

is a convience sample representative of overall population

A

no

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18
Q

what type of sample is representative of overall population

A

probability sample

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19
Q

what are four probability sample types

A

simple random sample, multicluster sample, stratified sample, random digit dialing

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20
Q

what type of probability sample used when you take table of random numbers or randomly selected using computer

A

simple random sample

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21
Q

taking random samples of multiple level (cities to counties to towns to households)

A

multicluster sampling

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22
Q

what is an advantage to multicluster sampling

A

easily obtainable sampling frames

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23
Q

what is a disadvantage to multicluster sampling

A

complex sampling design

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24
Q

what probability sample occurs when you over estimate sample in order to get proper results, when a sub group is small in a population

A

stratified sampling

25
Computer randomly assigns 4 digits to complete phone number is called
random digit dialing
26
if its not a probability sample what do you want the researcher to do
give enough info to prove valid results
27
which are the worst result rate of surveys
mail
28
what is respondent bias
people who fill out survey may be different than overall population
29
Can the researcher demonstrate that non-respondents are not substantially different from respondents? example of
respondent bias
30
jargon slang, technical language, mutually exclusive( each respondent fits in one and only one category) are what
poorly constructed questions
31
Watch out for survey questions with ambiguity, confusion, vagueness Watch out for surveys which ask questions that are beyond R's capabilities T/f
Both true
32
what time frame is better for less important events
short time frame
33
longer time frame is good for what events
important events
34
looking for a specific answer from a person in the survey-like for a fundraiser is called
leading bias
35
surveys should never assume what
respondent knowledge
36
coupling survey with figures and well known people it enhances results-even when there is no such thing is this true/false and what is it called
true, prestige bias
37
surveys use what two thing which are a set of questions when combined yield info about respondent
scales and indexes
38
combine a survey with a physical examination increases external validity (these are non mail surveys) True or false
True
39
according to chronbach's index what indicates the survey is more reliable
closer to 1
40
which surveys have highest rate of validity
face to face
41
can respondents be influenced by interview
yes
42
cheap and fast, convenient, innovative(imbed pictures etc), have become quite common is what kind of survey
web based
43
what is major problem with mail and web based surveys
not sure who actually fills them out
44
which survey must be synchonous
telephone
45
which surveys are asynchronous
mail and web based
46
A multi stage cluster sample is a type of probability sample of a larger population used in survey research. In probability samples each case has an equal chance of inclusion in the sample which are true or false
both true
47
Surveys typically use convenient samples drawn from a larger population. Typically surveys rely on a respondent’s willingness to participate which may affect the validity and accuracy of their survey which is true or/and false
false, true
48
is info derived from a cross sectional study related to surveys
no
49
Information derived from cross sectional surveys allow a researcher to make causal statements about the IV and the DV, is this statement about surveys true or false
false
50
Typically surveys are dependent on willingness of ppl to participate, can mess up validity and accuracy of the responses. Survey samples are typically probability samples drawn from a larger pop
both true
51
A specific statistic that is calculated to indicate the magnitude (strength) and direction of the degree of relationship between two variables (X, Y) is what
correlation coefficient
52
a strong correlation is when
when data points are close to trend line
53
relationship between an interval/ratio dependent variable and an interval/ratio independent variable
bivariate regression
54
is the best line to minimize error (relationship between two variables)
Regression line, trend line
55
in multiple regression what does the trend line become
a plane
56
one dependent variable with multiple independent variables is
multiple regression
57
How does an independent variable increase the odds (likelihood or probability) of an event occurring, relative to some baseline category?
logit regression
58
if linear regression line is flat than what
no difference in odds
59
comparing odds of something happening compared to baseline category
logit regression