Hi! I have a couple of questions for my statistics class. Can someone explain these to me?

Part 1: Types of Variables Each of the following lists a variable, and in parentheses indicates measured values for two respondents. For each variable, please indicate the level of measurement and the unit of analysis.

a) Attitude toward capital punishment (first respondent = in favor; second respondent = oppose) b) Days per week a person watches TV news (2 days; 5 days) c) Self-rated health (good; fair) d) Times per month one attends religious services (four; one) e) Ethnicity (African American; Latino) f) Political views (somewhat conservative; very conservative)

Part 3: Reliability and Validity What does it mean for a variable to be both valid and reliable? Does a car speedometer that is always five mph too low have a problem with reliability or validity? Does a thermometer that varies +/- 2 degrees but on average gives you the right temperature have a problem with reliability or validity?