PSYC 201 – Spring 2010Review sheet for second examYou’re responsible for everything we covered in class and the materials in the texts. The list of topics in the review sheet is not a complete list of everything you’re responsible for.Material from the texts to be covered on the exam.Jackson: Chapter 4: 80-84 Chapter 5: 104-132 Chapter 7: 191-193 Chapter 9: 245-247 Pierce – Descriptive Statistics – Web site- http://www.radford.edu/~tpierce/201%20handouts.htmDescriptive statistics- Frequency distributions- Regular frequency distributions- Interval (grouped) freq. Distributions- Generating frequency distributionsusing SPSS- Measures of central tendency- Mode- Median- Mean- Conceptual definition of the mean. Mean is the one number that minimizes the average deviation around it. The mean as the center of gravity of a frequency distribution.- Locations of the mean, median, and mode on frequency distributions with different shapes.- Generating measures of central tendency using SPSS- Measures of variability- Range- Sum of Squares- Variance- Standard Deviation- Equations for the variance for botha population and a sample- Equations for the standard deviation for both a population anda sample.- Generating measures of variability using SPSS- Transformations- Deviations scores- Standard scores (z scores)- Percentile Scores- Use of the normal curve table to generate percentile scores- Use of the normal curve table to calculate the percentage of scores that fall between any two standardscores.- Converting percentile scores to standard scores- Converting standard scores to raw scores.Naturalistic Observation- Observation without intervention- Observation with intervention- Naturalistic observation- Reasons for using observation withintervention- Participant observation- Disguised and undisguised participant observation- Structured observation- Field experiment- ConfederateMethods of recording behavior- Narrative record- Time sampling- Event sampling- Situation sampling- Data reduction- Coding systems- Reactivity- The Hawthorne effect- Avoiding reactivity- Unobtrusive observation- DeceptionLab material for Exam 2Make sure you know how to do each of the following:- Interpret and name the shape of a frequency distribution- Generate frequency distributions using SPSS- Enter data into SPSS and save it.- Insert both Variable Labels,and Value Labels- Get descriptive statistics using the Frequencies and Descriptives options inSPSS- Create a new variable using the Compute option- Use the Select Cases option- Calculate the mode, median, mean, sumof squares, variance, and standard deviation by hand- Convert raw scores to Z-scores (standard scores), convert Z-scores to percentile scores- Convert a percentile score to a Z-score, convert a Z-score to a raw score- Calculate the percentage of scores falling between any two standard
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