What does it mean for a research study to involve stratification and provide an example of a characteristic that might be stratified?
What will be an ideal response?
Stratification in a research study means that specific characteristics of individuals will be represented in a sample population relative to their proportion in the population. Some characteristics that researchers may wish to stratify include gender, race/ethnicity, and age.
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The concept of least restrictive environment was part of P.L. 94–142
Indicate whether this statement is true or false.
Which statement more accurately compares the numbers of insect species with the numbers of all other species of animals known?
a................There are more species of insects than all other species of animals combined. b..........................................About one-fourth of all known species of animals are insects. c.............................................About one-half of all known species of animals are insects. d...........................................About one-tenth of all known species of animals are insects.
The delivery model is significant in the blended learning environment for:
a. it provides access to a student's grades b. it makes the learner accountable to the teacher c. it engages the teacher and student in the learning process d. none of the above
A therapist goes through her records and finds that 200 of her 400 patients showed significant improvement in mental health over the past year. Hence, the probability of her patients showing significant improvement in mental health is ______.
A. .05 B. .50 C. 200 D. 400