'Extreme scores' diaporamas de présentation

Psych 230 Psychological Measurement and Statistics

Psych 230 Psychological Measurement and Statistics. Pedro Wolf September 9, 2009. So Far. Stem and leaf plots Bar plots Summarizing scores using Frequency how a frequency distribution is created Graphing frequency distributions bar graphs, histograms, polygons Types of distribution

1.5k views • 129 slides

963 views • 39 slides

Research Methods in Psychology

475 views • 30 slides

Psych 5500/6500

Psych 5500/6500. The t Test for a Single Group Mean (Part 5): Outliers. Fall, 2008. Viewing Your Data.

407 views • 29 slides

Statistics PSY302 Quiz Chapters 2

Statistics PSY302 Quiz Chapters 2. 1. The mean, mode and median are examples of measures of:. The middle Central Tendency Variability A & B All of the above. 1. The mean, mode and median are examples of measures of:. The middle Central Tendency Variability A & B All of the above.

266 views • 26 slides

EXPERIMENTAL DESIGNS

EXPERIMENTAL DESIGNS. Criteria for Experiments Independent, Dependent, and Confounding Variables Types of Experimental Designs Threats to Internal Validity Threats to External Validity. Criteria For Experimental Designs. Cause: experimenter manipulates a variable

614 views • 25 slides

Part II S igma Freud & Descriptive Statistics

Part II S igma Freud & Descriptive Statistics. Chapter 2 ? ? ? ? Means to an End: Computing and Understanding Averages. What you will learn in Chapter 2. Measures of central tendency Computing the mean and weighted mean for a set of scores

348 views • 20 slides

Chapter 3 Descriptive Statistics: Numerical Measures Part A

Chapter 3 Descriptive Statistics: Numerical Measures Part A. Measures of Location Central Tendency Measures Percentiles and Quartiles. Mean. The mean of a data set is the average of all the data values. The sample mean is the point estimator of the population mean m. Sample Mean.

361 views • 20 slides

Mental illness

Mental illness. What is Normal?. Psychopathology: Scientific study of mental, emotional, and behavioral disorders. Subjective Discomfort: Feelings of anxiety, depression, or emotional distress.

420 views • 17 slides

VARIABILITY

VARIABILITY. Measure of Variability. A measure of variability is a summary of the spread of performance. Suppose that 2 students took 10 quizzes in a Preparatory School. Measure of Variability. The pass-point of the preparatory school is 70.

409 views • 17 slides

Measures of Central Tendency

Measures of Central Tendency. Measures of Central Tendency. Central Tendency = values that summarize/ represent the majority of scores in a distribution Three main measures of central tendency: Mean ( = Sample Mean; ? = Population Mean ) Median Mode. Measures of Central Tendency.

1.06k views • 16 slides

Statistics Boot Camp

Statistics Boot Camp. What is statistics?. Study of the collection, organization, analysis, and interpretation of data Help us see what the unaided eye misses. Two Types. Descriptive Statistics: Describe data Help us organize bits of data into meaningful patterns and summaries

251 views • 16 slides

Chapter 10 Descriptive Statistics

Chapter 10 Descriptive Statistics. Numbers One tool for collecting data about communication phenomena Capture quality, intensity, value, or degree Only meaningful if they are interpreted Operationalizations specify how data are collected and become numerical. Looking at a Dataset.

257 views • 13 slides

Controlling extraneous variables

1.94k views • 12 slides

CHAPTER 10

MANAGEMENT RESEARCH Third Edition, 2008 Prof. M. Easterby-Smith, Prof. R. Thorpe, Prof. Paul R. Jackson. CHAPTER 10 . Summarizing and Making Inferences from Quantitative Data. Learning Objectives. To be able to choose effective ways of summarizing key features of data.

248 views • 12 slides

Data Analysis and Presentation

125 views • 12 slides