Subject: Business    / Management
Question

QUESTION 1

A specific value, such as “999,” is often used to identify a missing variable, rather than leaving the field blank. Ideally this would be defined…

In a codebook

Before data entry begins

By the IRB

both by the IRB and before data entry begins

both in a codebook and before data entry begins.

QUESTION 2

A FILL IN THE BLANKcan reduce data entry time and improve data quality, but can be more difficult to implement, especially when documentation of informed consent is required.

Interview

Paper survey

Electronic survey

Phone survey

QUESTION 3

A variable assigns a rank to responses, whereas a variable has no implicit ranking.

Ordinal, ratio

Ratio, categorical

Interval, binomial

Ordinal, categorical

Regression modeling can be used to test the extent to which a variable or variables predict a particular outcome.

True

False

.

QUESTION 7

Responsibilities of a study PI include which of the following? (Check all that apply)

Ensuring that funds are managed according to the budget.

Determine whether the protocol will protect the welfare and rights of subjects.

The study protocol is followed appropriately.

Any adverse events are reported.

QUESTION 8

Outcome variables for studies based on 2×2 tables (case control, cohort) must be…

Binomial

Categorical

Ratio

Coded

QUESTION 9

Increasing your sample size will have what effect on the confidence interval around your outcome?

The CI will become narrower

The CI will become wider

The CI will become taller

Sample size has no effect on CI

QUESTION 10

Any given study participant has an equal chance of being assigned to the intervention or control group is researchers are using…?

A non-random sampling strategy

A simple random sample

A cluster sample

A stratified random sample

QUESTION 11

The NIH data sharing policy requires researchers to submit data to NIH as it is collected.

True

False

QUESTION 12

Testing a questionnaire is important in order to ensure that wording is clear, that questions are asked in the best order, and to determine the amount of time taken to complete a response.

Agree

Neutral

Disagree

I don’t know

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