Which of the following are variables in the study? Check all that apply. The 100 students The students’ verbal SAT scores The students’ percentage of new but conceptually similar words that were mistakenly thought to be on the original list The 1,000 students What is the population in the study? The 34% of new words mistakenly identified as original words because they were conceptually similar The 1,000 first-year students at the college The 100 students who participated in the study What is the sample in the study? The 34% of new words mistakenly identified as original words because they were conceptually similar The 100 students who participated in the study The 1,000 student volunteers What is an example of a statistic in the study? 34%, the average percentage of conceptually similar words mistakenly thought to be on the original list by the 100 students 457 females and 543 males 34%, the average percentage of the conceptually similar words expected to be mistaken

What is an example of a parameter in the study? The actual average percentage of conceptually similar words that would be mistakenly recognized as being from the original list by the 1,000 first-year students 100 students 34% of new but conceptually similar words that were mistakenly thought to be on the original list by the 100 first-year students What is an example of the professor using descriptive statistics? She infers that if all 1,000 students had done the experiment, the results would show that an average of 34% (plus or minus sampling error) of new words were mistakenly identified as original words because they were conceptually similar. She characterizes the first-year students at the college as consisting of 543 males and 457 females. She randomly chooses the 100 students to represent the 1,000 volunteers. What is an example of the professor using inferential statistics? She reports that the average percentage of new but conceptually similar words that were mistakenly thought to be on the original list was 34%. She characterizes the first-year students at the college as consisting of 543 males and 457 females. She infers that if all 1,000 students had done the experiment, the results would show that an average of 34% (plus or minus sampling error) of new words were mistakenly identified as original words because they were conceptually similar. 2. The following research studies consist of two or more groups of scores being compared. For each, decide whether the study is experimental or nonexperimental, and then identify the dependent, independent, or quasi-independent variables. A researcher in a medical school would like to test the effectiveness of different insomnia treatments. She conducts a study on 120 volunteers, who are randomly assigned to five different insomnia treatment groups, one of which is a control group receiving a placebo. The number of hours slept per night is recorded for each participant over two weeks. This study is an example of _____ study. The number of hours slept per night over two weeks is the ____ variable. The type of insomnia treatment is the ____ variable. Researchers at a medical school conducted a study to test the effectiveness of a new drug for lowering cholesterol. The 52 subjects who volunteered for the study were each given a randomly generated number. Subjects with an odd number were given the new drug, while those with an even number were given a placebo. Cholesterol levels before and after the treatment were measured for each subject, and the differences were computed. This study is an example of _____ study. The difference in cholesterol level is the _____ variable. The treatment with drug or placebo is the _____ variable. 3.Shaywitz, Shaywitz, Blachman, and colleagues (2004) conducted an experiment to see whether a reading intervention based on phonetics could alter the functioning of the left hemisphere region of the brain to help children with reading disabilities read better. Some children (n = 37) were randomly assigned to receive the phonologically based reading intervention, whereas another group (n = 12) received the treatment that was typically used in their community. Children taught with the phonologically based reading intervention demonstrated increased activity in the left hemisphere regions of the brain during functional magnetic resonance imaging (MRI) compared with those who received the typical treatment. [Source: Shaywitz, B. A., Shaywitz, S. E., Blachman, B. A., et al. (2004). Development of left occipitotemporal systems for skilled reading in children after a phonologically-based intervention. Biological Psychiatry, 55(9), 926–933.] In this experiment, the independent variable is ____ , and the dependent variable is ______ . The individuals who are in the control condition are typically referred to as the control group. Here, the control group consists of _______ . ______ is a construct that is being tested in this experiment, and the experimenters have operationally defined it as ______ . 4. Suppose a researcher compiled a data set consisting of the following variables for a sample of 50 retired men. For each variable, select whether it is discrete or continuous. Variable Discrete Continuous The number of college football games ever attended ? ? The number of sons or daughters ? ? Pant size ? ? Body temperature ? ? Pounds of chocolate consumed in the past year ? ? NEED TO DO BOTH PARTS 1ST PART IS IN THE SUMMARY BOX REST IS HERE!!!