Children’s use of pronouns. Clinical observations suggest that specifically language-impaired (SLI) children have great difficulty with the proper use of pronouns. This phenomenon was investigated and reported in the Journal of Communication Disorders (Mar. 1995). Thirty children, all from low-income families, participated in the study. Ten were five-year-old SLI children, 10 were younger (three year-old) normally developing (YND) children, and 10 were older (five-year-old) normally developing (OND) children. The table contains the group, deviation intelligence quotient (DIQ), and percentage of pronoun errors observed for each of the 30 subjects. (The data for these variables, as well as gender, are saved in the SLI file.)
a. Identify the variables in the data set as quantitative or qualitative.
b. Why is it nonsensical to compute numerical descriptive measures for qualitative variables?
c. Compute measures of central tendency for DIQ for the 10 SLI children.
d. Compute measures of central tendency for DIQ for the 10 YND children.
e. Compute measures of central tendency for DIQ for the 10 OND children.
f. Use the results from parts c–e to compare the DIQ central tendencies of the three groups of children. Is it reasonable to use a single number (e.g., mean or median) to describe the center of the DIQ distribution? Or should three “centers” be calculated, one for each of the three groups of children? Explain.
g. Repeat parts c – f for the percentage of pronoun errors.
h. Plot all the data to investigate a possible trend between DIQ and proper use of pronouns. What do you observe?
i. Plot the data for the 10 SLI children only. Is there a trend between DIQ and proper use of pronouns?
Topic learning outcomes On completing this topic, students should be able to: • explain the role of professional standards within the financial planning context • dist...Nov 23 2019
If Fixed Costs are 46 and Variable Costs are 35 at 3 units of output, what are average total costs? i.e., what are total costs per unit at 3 units of output?Apr 10 2020
Use the following 8% interest factors for questions 39 through 40PresentValueof FutureValue of OrdinaryAnnuity Ordinary...May 04 2018
Depreciation on factory equipment would be reported in the statement of cash flows prepared by the indirect method in:(A) the cash flows from financing activities section...May 19 2018
An absentminded professor wrote n letters and sealed them in envelopes without writing the addresses on the envelopes. Having forgotten which letter he had put in which...Aug 03 2020
Gentle rest slumber case study, llc: what are the positive aspectsthe employees could glean from the financial data ? Attached >Apr 13 2020
Which of these bodies has redundant constraints for the given loading conditions? F1 and F2 are applied, known forces. In the first choice, the support at A is fixed and ...Jun 21 2020
Several years ago, Health Services acquired a helicopter for use in emergency situations. Health Services incurred the following expenditures related to the helicopter de...Aug 24 2020
Financial information disclosed by firms can lead to capital markets’ reactions. Discuss several types of voluntary information that has been shown to affect capital mark...Apr 24 2021
Homegrown profits have enabled Cemex to afford acquisitions such as the $2.8 billion purchase in 2000 of U.S. cement company Southdown Inc. That move made Cemex the leadi...Jan 07 2020