A Module 3 Quiz - PSY 230 SP22 1( X PSY230 Exam 2 Flashcards & Prac X G A wildlife preservation researcher * * Course Hero X + V X C A d21.arizona.edu/d21/le/content/1106919/viewContent/11743992/View Q E X Question 2 0 / 2 points The variance of a distribution of means is The variance of the original population divided by the number of people in each sample. The variance of the original population divided by the total number of people (in all of the samples combined). O The square root of the original population's standard deviation. The square of the original population's standard deviation. Question 3 0 / 2 points The standard deviation of a distribution of means is O the population variance divided by the N in each sample. the same as the square root of the sample variance. OO the square root of the variance of the distribution of means. O figured by subtracting the variance from the sample mean and taking the square root. Question 14 0 / 2 points Imagine a clinical psychologist wants to know whether a new therapeutic technique works better than the an old one. He works through the steps of hypothesis testing and, in step 5, he compares his z-score (1.99) to the cutoff score he found in Step 3 (1.96). What can he conclude? He fails to reject the Null Hypothesis He rejects the Null Hypothesis Type here to search W X 5:12 PM Rain to stop ~ ( 9 / C A d21.arizona.edu/d21/le/content/1106919/viewContent/11743992/View Q E X Question 15 0 / 2 points Imagine a clinical psychologist wants to know whether a new therapeutic technique works better than the an old one. He works through the steps of hypothesis testing and, in step 5, he compares his z-score (1.99) to the cutoff score he found in Step 3 (1.96). What can he conclude? There's not enough information to draw a conclusion. The new technique does not work significantly better than the old one. The finding is inconclusive The new technique works significantly better than the old one. Question 16 0 / 2 points A researcher is investigating the weight of dogs in Tucson. She takes a sample and finds the average weight is 51 lbs. She later obtains the weights of every dog in Tucson and finds that the average weight is 57 Ibs. If she were to take several random samples from the population of dogs in Tucson, what would the mean of the distribution of means be? 57 lbs 51 lbs 54 lbs It's impossible to say without more information. Type here to search W X 5:12 PM Rain to stop ~ $5 0 ( () 3/31/2022A Module 3 Quiz - PSY 230 SP22 1( X PSY230 Exam 2 Flashcards & Prac X G A wildlife preservation researcher * *Course Hero X + V X C A d21.arizona.edu/d21/le/content/1106919/viewContent/11743992/View Q E X It's impossible to say without more information. Question 17 0 / 2 points The variance of a distribution of means is smaller than the original population variance because it is an estimate of the sample parameters rather than of the original population. O extreme scores are less likely to affect a distribution of means compared to single sample scores due to the law of large numbers and regression to the mean. O it is based on fewer individuals than is the original population. the mean of a distribution of means is so different than the population mean. Question 18 0 / 2 points What is the relationship between effect size and power? The larger the effect size, the smaller the power of a study Effect size and power are unrelated The more effect size increases, the less meaningful power becomes The larger the effect size, the higher the power of a study Attempt Score:26 / 40 - 65 % Overall Cmade /bicback at Type here to search W X 5:12 PM Rain to stop ~ (5 9 /() 3/31/2022