Generic Accutane (Isotretinoin, Accutane® equivalent)
Isotretinoin is a form of vitamin A. It decreases the amount of sebum (oil) that is released by the sebaceous (oil) glands, and it increases that rate at which the skin renews itself. Isotretinoin is used to treat severe nodular acne that has not responded to other treatments, including antibiotics.
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10mg
| Quantity | Price | Price per pill | Returning customer price | Bonus | |
|---|---|---|---|---|---|
| 10 | € 35.72 | € 3.57 | € 31.92 | ---- | Out of stock |
| 20 | € 40.28 | € 2.01 | € 35.72 | ---- | Out of stock |
| 30 | € 50.92 | € 1.70 | € 45.60 | ---- | Out of stock |
20mg
| Quantity | Price | Price per pill | Returning customer price | Bonus | |
|---|---|---|---|---|---|
| 10 | € 45.60 | € 4.56 | € 41.04 | ---- | Out of stock |
| 20 | € 50.92 | € 2.55 | € 45.60 | ---- | Out of stock |
| 30 | € 60.80 | € 2.03 | € 54.72 | ---- | Out of stock |
Drug Medical Information
AGE AND BEHAVIOR: RESEARCH METHODS - AGE AND CULTURE CONFOUNDED - CROSS-SECTIONAL STUDIES
The confounding of cohort and age is most apparent in cross-sectional studies, i.e., studies in which two or more age (cohort) groups are compared during the single period of the examination. The age groups are compared in intelligence and other test performances, with the knowledge that the quality and quantity of formal education has been different for old and young. Age groups are compared although researchers know that so many of today's sources of cognitive stimulation were unknown generations ago. Social patterns, values, and attitudes were different when grandmother was a girl—how can people of different ages be compared?
There is no problem in making comparisons when the comparisons are kept on a descriptive level; the problem arises when explanations underlying the descriptions are attempted. Here, utmost caution must be maintained always. If education, good health, experience in taking tests, and many other factors are involved in making good test scores, than we can anticipate that an observed age difference today may not be seen tomorrow. To the extent that such culturally determined factors underlie the observed age differences and to the extent that future cohorts improve with respect to such factors, we may expect that "the larger will be the difference between present and future random samples of elderly subjects, and the more will the differences between age groups diminish in time" (Botwinick, 1959).
The point, very simply, is, what so often is attributed in cross-sectional studies to age may not be due to age at all but to cohort effects. This is the major shortcoming of cross-sectional studies.
*421\220\8*
