True or False? I need some help!
——— 26. In the following hypothesis: “Nicotine will have an effect on memory,” the dependent variable is nicotine
_____27. In the following hypothesis: “Nicotine will have an effect on memory,” the independent variable is memory
______28. Researchers collect data by measuring the dependent variable in their studies
______29. Independent variables are the variables that researchers manipulate in their studies
______30. In a directional (one-tail) hypothesis test, the entire critical region is located in either one of the other tail of the distribution, but not in both tails of the distribution
______31. The reason for computing Cohen’s d is that a hypothesis test, per se, does not measure the size of the effect
_____32. Cohen’s d or any other “d” measures effect size
______33. Standard error is the discrepancy or difference, on average, that you should expect between your sample mean (M) and the population mean (µ)
______34. All hypotheses tests analyze (or compare) two main differences. These differences are the differences between or among means due to the IV, and difference between or among means due to chance