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PSYC 300 Quizes

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PSYCOLOGY QUIZ The two properties about a set of measurements of a dependent vari- able that we are most interested in describing are: number of scores. The generally preferred measure ... of central tendency is usually the Which of the following is the most useful descriptive statistic for measuring dispersion? The standard deviation is If the mean I.Q. is 100 and the standard deviation of I.Q. scores is 15, then an I.Q. of 130 will have a z score (or standard score) of The power of a statistical test refers to its ability to reject false null hypotheses. reject false experimental hypotheses. reject true null hypotheses. reject true experimental hypotheses. Simple analysis of variance is used in designs having one independent variable more than one independent variable more than one independent variable (IV) but less than four IVs more than one dependent variable is one way of ensuring that a sample is representative of the population. The two-tailed test The between-subjects design The sign test Random sampling If we conduct an experiment on average young, white, college males, inferential statistics allow us to generalize to the population of average young, white, college males. college male students. college students. young adults. Which of the following would be considered the most conservative al- pha level? .01 .05 .10 .15 The prediction that alcohol slows reaction time is nondirectional. directional. semidirectional. partially directional. powerful than one-tailed tests. less; less less; more more; less more; more The indicates the number of scores that are free to vary. U degrees of freedom magnitude of effect point biserial The is used to analyze the results when there are more than two groups. t-test z-test analysis of variance none of the above The maintains that two conditions do not differ. experimental hypothesis level of confidence law of effect null hypothesis . .............................................Continued....................................... [Show More]

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