Sit in Groups Lab5_8.31 Effects on Adolescents’ Romantic Ideals

Slides:

Advertisements

Similar presentations

Advertisements

Measures of Central Tendency. Central Tendency “Values that describe the middle, or central, characteristics of a set of data” Terms used to describe.

Review of Basics. REVIEW OF BASICS PART I Measurement Descriptive Statistics Frequency Distributions.

Review of Basics. REVIEW OF BASICS PART I Measurement Descriptive Statistics Frequency Distributions.

Lecture 2 PY 427 Statistics 1 Fall 2006 Kin Ching Kong, Ph.D

Chapter 13 Analyzing Quantitative data. LEVELS OF MEASUREMENT Nominal Measurement Ordinal Measurement Interval Measurement Ratio Measurement.

Chapter 14 Analyzing Quantitative Data. LEVELS OF MEASUREMENT Nominal Measurement Nominal Measurement Ordinal Measurement Ordinal Measurement Interval.

QM Spring 2002 Statistics for Decision Making Descriptive Statistics.

Introduction to Educational Statistics

B a c kn e x t h o m e Classification of Variables Discrete Numerical Variable A variable that produces a response that comes from a counting process.

Data observation and Descriptive Statistics

SHOWTIME! STATISTICAL TOOLS IN EVALUATION DESCRIPTIVE VALUES MEASURES OF VARIABILITY.

Levels of Measurement Nominal measurement Involves assigning numbers to classify characteristics into categories Ordinal measurement Involves sorting objects.

Chapter 2 CREATING AND USING FREQUENCY DISTRIBUTIONS.

Chapter 3: Central Tendency

BASIC STATISTICS WE MOST OFTEN USE Student Affairs Assessment Council Portland State University June 2012.

Frequency Distributions and Percentiles

Central Tendency In general terms, central tendency is a statistical measure that determines a single value that accurately describes the center of the.

Hypothesis Testing Charity I. Mulig. Variable A variable is any property or quantity that can take on different values. Variables may take on discrete.

Summarizing Scores With Measures of Central Tendency

Chapter 3 Statistical Concepts.

Chapter 3: Central Tendency. Central Tendency In general terms, central tendency is a statistical measure that determines a single value that accurately.

Graphical Summary of Data Distribution Statistical View Point Histograms Skewness Kurtosis Other Descriptive Summary Measures Source:

Data Handbook Chapter 4 & 5. Data A series of readings that represents a natural population parameter A series of readings that represents a natural population.

Statistical Tools in Evaluation Part I. Statistical Tools in Evaluation What are statistics? –Organization and analysis of numerical data –Methods used.

Descriptive Statistics And related matters. Two families of statistics Descriptive statistics – procedures for summarizing, organizing, graphing, and,

PPA 501 – Analytical Methods in Administration Lecture 5a - Counting and Charting Responses.

Describing Behavior Chapter 4. Data Analysis Two basic types  Descriptive Summarizes and describes the nature and properties of the data  Inferential.

Chapter 2 Describing Data.

Descriptive Statistics

Describing Data Lesson 3. Psychology & Statistics n Goals of Psychology l Describe, predict, influence behavior & cognitive processes n Role of statistics.

Determination of Sample Size: A Review of Statistical Theory

A way to organize data so that it has meaning!.  Descriptive - Allow us to make observations about the sample. Cannot make conclusions.  Inferential.

Chapter 2 EDRS 5305 Fall Descriptive Statistics  Organize data into some comprehensible form so that any pattern in the data can be easily seen.

 Two basic types Descriptive  Describes the nature and properties of the data  Helps to organize and summarize information Inferential  Used in testing.

© 2011 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license.

Statistics Without Fear! AP Ψ. An Introduction Statistics-means of organizing/analyzing data Descriptive-organize to communicate Inferential-Determine.

Descriptive statistics in the case of quantitative data (scales) Part I.

Descriptive Statistics Review – Chapter 14. Data  Data – collection of numerical information  Frequency distribution – set of data with frequencies.

Chapter 3: Central Tendency. Central Tendency In general terms, central tendency is a statistical measure that determines a single value that accurately.

BASIC STATISTICAL CONCEPTS Chapter Three. CHAPTER OBJECTIVES Scales of Measurement Measures of central tendency (mean, median, mode) Frequency distribution.

1 Outline 1. Why do we need statistics? 2. Descriptive statistics 3. Inferential statistics 4. Measurement scales 5. Frequency distributions 6. Z scores.

LIS 570 Summarising and presenting data - Univariate analysis.

Lesson 13-3 Histograms.

Chapter 3: Central Tendency 1. Central Tendency In general terms, central tendency is a statistical measure that determines a single value that accurately.

Measurements Statistics WEEK 6. Lesson Objectives Review Descriptive / Survey Level of measurements Descriptive Statistics.

Measures of Central Tendency (MCT) 1. Describe how MCT describe data 2. Explain mean, median & mode 3. Explain sample means 4. Explain “deviations around.

A way to organize data so that it has meaning!.  Descriptive - Allow us to make observations about the sample. Cannot make conclusions.  Inferential.

PXGZ6102 BASIC STATISTICS FOR RESEARCH IN EDUCATION

Sit in Groups Lab7_9.9 Effects on Adolescents’ Romantic Ideals 1.Answer the Q1, Q2,Q Compare your answers with your partners 3.Class discussion 1.

REVIEW OF BASIC STATISTICAL CONCEPTS Kerstin Palombaro PT, PhD, CAPS HSED 851 PRIVITERA CHAPTERS 1-4.

Chapter 11 Summarizing & Reporting Descriptive Data.

Measurements Statistics

Chapter 3 Measures Of Central Tendency

Central Tendency and Variability

Summarizing Scores With Measures of Central Tendency

Statistical Reasoning in Everyday Life

QUIZ Time : 90 minutes.

Analysis and Interpretation: Exposition of Data

An Introduction to Statistics

Introduction to Statistics

Normal and Skewed distributions

Psychology Statistics

MEASURES OF CENTRAL TENDENCY

Descriptive and Inferential

Chapter 3: Central Tendency

Descriptive Statistics

Descriptive statistics for groups:

Univariate Description

Presentation transcript:

Sit in Groups Lab5_8.31 Effects on Adolescents’ Romantic Ideals Answer the questions Compare your answers with your partners Class discussion

(Max-Mix+1)/intervals Formula Interval width= (Max-Mix+1)/intervals Midpoint (Li+ Li+1)/2

Frequency tables Value Frequency Percentage Midpoint 0-3 11 11.00% 2 Group frequency table Value Frequency Percentage Midpoint 0-3 11 11.00% 2 4-7 30 30.00% 6 8-11 37 37.00% 10 12-15 12 12.00% 14 16-19 10.00% 18 Grand total 100 100% The number of times the data value occurs

Q1 Populations The professor is only interested in…. two population distributions

1) the measurement used Q2 2) how many observations 3) specifically who or what is being measured. The number of loose threads for 15 garments made by a student in the class.

Q3 Descriptive statistics Populations->descriptive statistics Samples->inferential statistics

Q3: Ratio (Does “0” make sense?) Q4 & Q5 Q3: Ratio (Does “0” make sense?) Q4: Ordinal ( Ranking?)

Q6: operational definition Order of garment wear out is measured in rankings where the first garment to wear out is labeled as 1, the second as 2, etc. Low rankings represent low quality. The procedures to determine the order of wear out is to place all 15 garments into a washer at the same time and wash on the normal setting.

Q6: operational definition Specific unit of measurement A description of the process of obtaining that unit of measurement Easy replication Clear No more than 3 sentences

Q7 A: 13.93 B : 15 C: 16 D :18 E :19 F: 25.12 G: 5.01

Q8 Has a frequency count in the first and last interval The frequency counts are correct The frequency percents are correct The interval widths are equal

Q9 There is a title and labels If the scale on either or both axis do not start at zero then break the axis Use midpoints not interval If you are using population data, connect the graph to the x-axis

Q10 Reference to measures of central tendency The graph The skewness statistic

Q10 These data are normally distributed, although the mean is pulled in the negative direction in comparison to the median and there appears to be a slight tail in the negative direction, the skewness statistic of ( ) falls between +/- .76 on the skewness table indicating the distribution is normal enough to continue with parametric statistical analyses.

Q10 Reference to measures of central tendency The graph The skewness statistic

Q11 The mean; the number of loose threads is a continuous variable and is normally distributed. If it was a continuous variable and skewed, then we would use the median. If it was a discrete variable, then we would use the mode.