**Stats I Week 4 Assignment Part 1 of 2**Lloyd, C. (2021, July 6).*Stats I Week 4 Assignment Part 1 of 2*[Video]. Kaltura.**Stats I Week 4 Assignment Part 2 of 2**Lloyd, C. (2021, July 6).*Stats I Week 4 Assignment Part 2 of 2*[Video]. Kaltura.

**These two videos present a walkthrough (including SPSS tutorials) for your weekly assignment.**

**Academic Success Center (ASC). (2020).***Statistics resources*. Northcentral University.**This LibGuide includes all of the statistics resources curated by NU's Academic Success Center. Use the headings on the left side of this ASC page to navigate to your particular area of need.****Measures of central tendency****Carman, C. (2012). Measures of central tendency. In N. J. Salkind (Ed.), Encyclopedia of research design (pp. 138-142). SAGE.**

Measures of central tendency are used to determine the middle area of a group of numbers. This section will describe the measures in order of importance and when to use each one of them.**Standardized scores****Richard, D. M. (2022). Standardized scores. In B. B. Frey (Ed.),***The SAGE encyclopedia of educational research, measurement, and evaluation*(pp. 1603-1605). SAGE.**Areas under the normal curve****Galyardt, A. (2018). Areas under the normal curve. In B. B. Frey (Ed.), The SAGE encyclopedia of educational research, measurement, and evaluation (pp. 120-121). SAGE.**

This section describes the areas related to the normal distribution. It also discusses the relationship between probability and the areas under the normal curve.**Standardizing variables to z-scores (Chapter 13)****Meyers, L. S., Gamst, G. C., & Guarino, A. J. (2013). Standardizing variables to z-scores (Chapter 13). In Performing data analysis using IBM SPSS. Wiley & Sons.**

These pages describe the procedures in SPSS to convert raw data into*z*-scores. Furthermore, it shows the procedures of recoding variables, which is useful to convert*z*-scores into*t*-scores.**Normal distribution.****Nicol, A. A. M. (2022). Normal distribution. In B. B. Frey (Ed.),***The SAGE encyclopedia of educational research, measurement, and evaluation*(pp. 1088-1091). SAGE..

**Supplemental Resources**

**Academic Success Center (ASC). (2020).***Statistics resources*. Northcentral University.**This LibGuide includes all of the statistics resources curated by NU's Academic Success Center. Use the headings on the left side of this ASC page to navigate to your particular area of need.****Presenting Statistics in Text****This page from the ASC offers support on how to use appropriately the different elements of statistics within text that you write.**

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