The use of a diverse sample of study participants in multiple ...

[go.lag]

The use of a diverse sample of study participants in multiple sites might affect:
 
  A) Replicability of the study
  B) The ability to use randomization
  C) The ability to use masking as a strategy
  D) The study's external validity

Question 2

A group of 150 seniors with type II diabetes consented to a study examining the relationship between self-care and quality of life.
 
  Seniors received didactic classes on proper diet, exercise, stress, and medication adherence with 30-minute low-impact exercise sessions once monthly for a period of 6 months. Ordinal level data collected during the study would include which of the following? A) Gender, ethnicity
  B) Education level, Heart Association classification
  C) Age, body mass index
  D) Scores on a self-care index

[nanny]

Answer to Question 1

D

Answer to Question 2

B
Feedback:
Ordinal measurement ranks people on relative standing on an attribute. Levels of education signify incremental ability as related to educational degree completed. Heart Association classification indicates level of heart health. Gender and ethnicity are variables measured by nominal measurement. Age and body mass index would be associated with ratio measurement. Scores on a self-care index would be examples of interval measurement.