Sentences with phrase «shows null results»

If she included the other random - assignment studies, her readers would learn that only one shows null results, and the rest demonstrate significant benefits, at least for African American students.

Similar studies of teacher merit pay have shown null results in New York City and Chicago.

Not exact matches

We have considered the possibility that radiation could directly result in more apoptosis in the thymus of p21 - null mice; however, quantitation of sub -(G0 / G1) thymocytes after acute irradiation (10 Gy; and analysis 3 h after irradiation) has not supported this idea (data not shown).

Despite strong support for the proliferative and growth - promoting effects of estrogens on mammary epithelial cells from animal and experimental studies (78, 79), previous studies on the associations between estrogens and breast density showed largely null or inconsistent results.

When your results start showing skill against a reasonable null model, I start believing you have begun to understand the problem.

He claims that this can be corrected for, but he still isn't using the proper null — in M&N they show the results from the ensemble means (of the GISS model and the full AR4 model set), but seem to be completely ignorant of the fact that ensemble mean results remove the spatial variations associated with internal variability which should be the exact thing you would use!

Next, to elaborate on your idea, if the Null Hypothesis is switched to the claim that AGW exists, the simulation results show (or probably show, I have not yet seen the complete paper), that it will be nearly impossible for any actual data to reject the null hypothesis at one of the conventional levels before 2050 or thereabNull Hypothesis is switched to the claim that AGW exists, the simulation results show (or probably show, I have not yet seen the complete paper), that it will be nearly impossible for any actual data to reject the null hypothesis at one of the conventional levels before 2050 or thereabnull hypothesis at one of the conventional levels before 2050 or thereabout.

For example, longitudinal follow - up of adults whose childhood abuse was documented has shown that their retrospective reports of such abuse are likely to underestimate actual occurrence.60, 61 Difficulty recalling childhood events likely results in misclassification (classifying people who truly were exposed to ACEs as unexposed) that would bias our results toward the null.