In an experiment testing the effects of alcohol on performance, Group A receives 3 nonalcoholic beers, Group B receives 6 nonalcoholic beers, Group C receives 3 alcoholic beers, and Group D receives 6 alcoholic beers. The independent variable(s) in this experiment is/areQuestion 8Answera.number of drinks.b.level of performance after drinking.c.amount of alcohol.d.amount of alcohol and number of drinks.

In a study on the effect of alcohol consumption, some participants drunk a non-alcoholic beverage that actually smelt and tasted like alcohol. This non-alcoholic drink was a__________ A. treatment condition B. placebo C. independent variable D. extraneous variable

Which of the following would be treated like an independent variable in a quasi-experimental study though it is not a true independent variable?1 分Number of others present (one, three, or five confederates)Drinking status (abstainer, social drinker, regular drinker, heavy drinker)Amount of time to study a list of words (one, five, or 15 minutes)Loudness of background noise (soft, moderate, loud)

To determine if alcohol consumption impacts students’ cognitive performance, ten students partake in an experiment on three consecutive Saturdays, with their time in seconds to solve a puzzle (time) recorded after a number of alcoholic drinks (drinks). The file Part1_Dataset7 displays the time to complete the same puzzle for the randomly assigned drink options: no alcohol on one of the Saturdays (zero standard drinks, coded 1), one standard drink of alcohol on another Saturday (coded 2), and five standard drinks of alcohol on another (coded 3). Hint. The variable “student” is the blocking variable. Based on the information given, answer the following questions. (a) At the 5% level of significance, is blocking effective? Follow all the necessary steps to perform the test and verify your results using Excel/PHStat. student drinks time 1 1 156 2 1 166 3 1 148 4 1 160 5 1 139 6 1 151 7 1 158 8 1 167 9 1 142 10 1 219 1 2 160 2 2 165 3 2 184 4 2 192 5 2 197 6 2 172 7 2 189 8 2 179 9 2 200 10 2 193 1 3 236 2 3 238 3 3 257 4 3 242 5 3 282 6 3 253 7 3 270 8 3 256 9 3 267 10 3 259

A group of students wanted to investigate the effect of different concentrations of a sports drink on Daphnia.  Design an investigation to test the research statement. Your answer should include the following:Independent variabledependent variablethree control variablesprocedure and manipulation of variablesmethod of recording of dataethical considerations

Select all that applyWhich other factors besides the alcohol content of the beverage, the amount of alcohol consumed, and the individual's usual alcohol intake affect alcohol metabolism?Multiple select question.SexEthnicityReligionAge