science

posted by .

For each of the following, choose the option that applies to case-control studies:

a. The investigator's role regarding exposure:
A assign B observe

b. Subject selection into groups:
A self-selection B randomization

d. Directionality:
A backwards B forwards C non-directional

e. Timing:
A prospective B retrospective C either

e. Analysis by:
A original assignment B actual experience

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Science

    Humans shape their environment in ways that other organisms cannot. Are humans subject to the same pressures of natural selection as other organisms?
  2. IT210

    I would really appreciate it if you can please explain how the following test were performed. I need to perform peer reviews of the following Currency Conversion Test Procedure and answer some questions about it. If you can just help …
  3. HRM

    o Name three selection tools that you would consider using for a hiring program at a supermarket. o Choose what you think is the best selection tool or combination of selection tools. o Justify your choice by describing the advantages …
  4. human resources

    Write a 1,400- to 1,750-word paper in which you address the following considerations related to selection tools: o Name three selection tools that you would consider using for a hiring program at a supermarket. o Choose what you think …
  5. Statistics (Please help!!!)

    Are there tables comparing and contrasting the following or how would you write these up?
  6. Science

    Think about the factors that will influence the evolution of humans in the future. Name one factor that would exert influence through the process of natural selection and one factor that would exert influence through artificial selection. …
  7. PLZZZZ HELP

    This question asks about your Independent Reading selection. You may use your reading selection to help you answer the question. What impact did your Independent Reading selection have on you as a reader?
  8. math

    jamie is joining a music club as part of her 4-cd introductory package she can choose from 12 rock selection, 10 alternative selection 7 country selections and 5 classical selection if jamie chooses on selection from each category …
  9. English

    In "The Literature of The Americas," Kimberly Koza writes: "By discovering the literature of out neighbors, we may also learn about ourselves." Keeping that in mind, respond to the next two questions. 26. Choose a selection from this …
  10. literature

    umm, i need possibly a little help. This question asks about your Independent Reading selection. You may use your reading selection to help you answer the question. What impact did your Independent Reading selection have on you as …

More Similar Questions