SOLVED

201)Which of the following is the definition of the “arithmetic mean”? A)a statistical procedure that allows researchers to draw inferences about how statistically meaningful a study’s results are B)an average that is calculated by adding up a set of quantities and dividing the sum by the total number of quantities in the set C)a commonly used measure of variability that indicates the average difference between scores in a distribution and their mean D)a statistical test that assesses how likely it is that a study’s results occurred merely by chance so that the researcher knows that the probability that the difference is “real” is overwhelming 202)Statistics are used for all of the following EXCEPT: A)determining the significance of the results. B)describing results. C)generating results. D)determining reliability and meaningfulness of results. 203)Descriptive statistics includes all of the following EXCEPT: A)calculating the standard deviation. B)tests of significance. C)use of graphs and charts. D)calculating the arithmetic mean. 204)Which of the following is the definition of “descriptive statistics”? A)averages that are calculated by adding up a set of quantities and multiplying the sum by the total number of quantities in the set B)statistical procedures that organize and summarize research data C)statistical tests that assess how likely it is that a study’s results occurred merely by chance D)statistical procedures that allow researchers to draw inferences about how statistically meaningful a study’s results are 205)Which of the following is the definition of “standard deviation”? A)an average that is calculated by adding up a set of quantities and dividing the sum by the total number of quantities in the set B)a statistical test that assesses how likely it is that a study’s results occurred merely by chance so that the researcher knows that the probability that the difference is “real” is overwhelming C)a commonly used measure of variability that indicates the average difference between scores in a distribution and their mean D)a statistical procedure that allows researchers to draw implications about how statistically meaningful a study’s results are 206)If the likelihood that a result occurred by chance is less than 5%: A)the results are statistically significant. B)the results fail to support the hypothesis being tested. C)the results can be used to predict individual behaviour with some accuracy. D)the results are meaningless. 207)Psychologists consider a result to be significant if it would be expected to occur by chance ________ time(s) in 100 repetitions of the study. A)ten or fewer B)one C)five or fewer D)fifteen or fewer 208)In a journal article, the authors report that the result is significant at the 0.05 level. This means that: A)the probability that the result is due to “real” differences between groups is 5 times in 100 repetitions of the study. B)the results failed to support the hypothesis of the study, although the researchers may want to do further studies. C)the researchers know that the results were not obtained by chance and that the difference between the experimental and the control group is “real.” D)the probability that the result occurred by chance is extremely low and the probability that the difference is “real” is overwhelming. 209)Which of the following is the definition of “inferential statistics”? A)statistical procedures that allow researchers to draw inferences about how statistically meaningful a study’s results are B)statistical tests that assess how likely it is that a study’s results occurred merely by chance C)averages that are calculated by adding up a set of quantities and multiplying the sum by the total number of quantities in the set D)statistical procedures that organize and summarize research data 210)Which of the following is the definition of “significance tests”? A)statistical procedures that assess how likely it is that a study’s results occurred merely by chance B)averages that are calculated by adding up a set of quantities and multiplying the sum by the total number of quantities in the set C)statistical procedures that allow researchers to draw inferences about how statistically meaningful a study’s results are D)statistical procedures that organize and summarize research data