research

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Across
  1. 4. broad diversity and differences
  2. 7. researchers recruitmembersincertainorder
  3. 8. portion researcher can access
Down
  1. 1. selecting most conveniently available people
  2. 2. each memberof pop-equalchanceofbeingindsample
  3. 3. stronger internal validity
  4. 5. uses researchers knowledge about pop
  5. 6. entire population of interest