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Cohort effects pose a problem for _____ research designs. a) longitudinal b) simultaneous c) cross-sectional d) cross-sequential
answered
Jan 16, 2019
Social Studies
high-school
4
votes
149k
views
Can someone help me with a math question?
answered
Jan 14, 2019
Mathematics
middle-school
1
vote
78.3k
views
What river forms much of the border between the united states and mexico wnd flows into the gulf of mexico
answered
Aug 1, 2018
English
high-school
4
votes
162k
views
A line contains the points (82,−96) and (87,−86) . What is the slope of the line in simplified form? Enter your answer in the box.
answered
Jul 19, 2018
Mathematics
middle-school
4
votes
161k
views
which statement best describes Henry's character? A. Henry is hardworking and respectful but is often confused by his wife's emotions b. Henry is happy and overly friendly, often allowing Elisa to do anything
answered
Jul 16, 2018
English
middle-school
2
votes
155k
views
Most people buy a house with cash. True False
answered
Jun 25, 2018
Business
high-school
5
votes
140k
views
Which of these means of transportation contributed to the growth of River cities such as Cincinnati
answered
Feb 7, 2018
History
middle-school
3
votes
217k
views
As an electron in a hydrogen atom moves from the second principal energy level to the first principal energy level, the energy of the atom: 1) decreases 2) increases 3) stays the same
answered
Sep 11, 2017
Chemistry
high-school
3
votes
156k
views
The sulfur and nitrogen compounds in smog combine with water to form A. Ozone B. Ammonia C. Acid rain D. Chlorofluorocarbons
answered
Apr 3, 2017
Biology
high-school
2
votes
199k
views
Which principle asserts that citizens, not politicians or government officials, hold ultimate authority?
answered
Jun 25, 2016
History
high-school
4
votes
6.4k
views
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