Question

. The attached file contains the six variables. I have already attempted this answer and got it wrong. Please ignore the checkmarks.

Question
Using the information below select all of the variables that are dichotomous (i.e., two categories).

QN88

QN33

_SMOKER3

_SLEPTIM1

QN44

_RFBING5

Behavioral Risk Factor Surveillance System (BRFSS 2016) Calculated Variables
https://www.cdc.gov/brfss/annual_data/2016/pdf/2016_calculated_variables_version4.pdf
Youth Risk Behavior Surveillance System (YRBSS 2015) YRBS Data User's Guide
https://www.cdc.gov/healthyyouth/data/yrbs/pdf/2015/2015_yrbs-data-users_guide_smy_combined.pdf

Answer 1

We have to select variables that are dichotomous (i.e., two categories).

Q33

During the past 30 days, on how many days did you smoke cigarettes?

A. 0 days B. 1 or 2 days C. 3 to 5 days D. 6 to 9 days E. 10 to 19 days F. 20 to 29 days G. All 30 days

this variable is has 7 levels, not 2 , hence not dichotomous

Q44

During the past 30 days, on how many days did you have 5 or more drinks of alcohol in a row, that is, within a couple of hours? A. 0 days B. 1 day C. 2 days D. 3 to 5 days E. 6 to 9 days F. 10 to 19 days G. 20 or more days

Again this variable is has 7 levels, not 2 , hence not dichotomous

Q88

On an average school night, how many hours of sleep do you get? A. 4 or less hours B. 5 hours C. 6 hours D. 7 hours E. 8 hours F. 9 hours G. 10 or more hours

Again this variable is has 7 levels, not 2 , hence not dichotomous

Smoker3

SMOKER3 Calculated variable for four-level smoker status: everyday smoker, someday smoker, former smoker, non-smoker

this has more than 2 levels, hence not dichotomous

RFBING5

RFBING5 Calculated variable for binge drinkers (males having five or more drinks on one occasion, females having four or more drinks on one occasion)

This could be dichotomous, but it also includes the level Don’t know/ Refused/Missing

so this is also not dichotomous

I could not find SLEPTIM1 in the document