Feedback on Psycho. Invest. 1.Give NUMBER and at least 2 other facts. 2.OPPORTUNITY sample: relate details to YOUR activity. 3.Full marks only if you apply.

Slides:



Advertisements
Similar presentations
MRCGP Video Analysis Dr. Ramesh Mehay Course Organiser (Bradford VTS) Dr. Ramesh Mehay Course Organiser (Bradford VTS)
Advertisements

Designing an impact evaluation: Randomization, statistical power, and some more fun…
T-Tests For Dummies As in the books, not you personally!
Feedback on Psychological Investigations First Mock Exam.
Copyright © 2009 Pearson Education, Inc. Chapter 29 Multiple Regression.
Hypothesis Testing. Intro to Hypothesis Testing Make a conjecture and test its validity Null hypothesis, H o : Make a conjecture about a population statistic.
What is Science anyway.
Chapter 10 Section 2 Hypothesis Tests for a Population Mean
Testing Hypotheses About Proportions Chapter 20. Hypotheses Hypotheses are working models that we adopt temporarily. Our starting hypothesis is called.
By: Kelsey Russell & Rachel Holmes.  Hindsight Bias  When you tell people that something is true, yet tell another group of people the opposite the.
Evaluation (practice). 2 Predicting performance  Assume the estimated error rate is 25%. How close is this to the true error rate?  Depends on the amount.
Chapter 3 Hypothesis Testing. Curriculum Object Specified the problem based the form of hypothesis Student can arrange for hypothesis step Analyze a problem.
Chapter 9 For Explaining Psychological Statistics, 4th ed. by B. Cohen 1 What is a Perfect Positive Linear Correlation? –It occurs when everyone has the.
Tests of significance: The basics BPS chapter 15 © 2006 W.H. Freeman and Company.
Traditional Method 2 means, dependent samples. A data entry office finds itself plagued by inefficiency. In an attempt to improve things the office manager.
Traditional Method One mean, sigma known. The Problem In 2004, the average monthly Social Security benefit for retired workers was $ with a standard.
Guidelines for Examination Candidates Raymond Hickey English Linguistics University of Duisburg and Essen (August 2015)
Thermistors You are to investigate a factor that may affect the resistance of a thermistor.
Chapter 8 Hypothesis testing 1. ▪Along with estimation, hypothesis testing is one of the major fields of statistical inference ▪In estimation, we: –don’t.
Tests of significance: The basics BPS chapter 15 © 2006 W.H. Freeman and Company.
14. Introduction to inference
How can you find a supported answer to an investigative question?
Is this quarter fair? How could you determine this? You assume that flipping the coin a large number of times would result in heads half the time (i.e.,
Questionnaire administration EHES Training material.
 Formula found on pg. 503  You are not using the equation with standard deviations 1, 2, and 3. You will use z* values  Critical values (z*) for 8.
Significance Tests: THE BASICS Could it happen by chance alone?
The Scientific Method. The Scientific Method The Scientific Method is a problem solving-strategy. *It is just a series of steps that can be used to solve.
Introduction to inference Tests of significance IPS chapter 6.2 © 2006 W.H. Freeman and Company.
ELPSS RLO Scripting Templates VERSION 3 (Jan 09).
1 rules of engagement no computer or no power → no lesson no SPSS → no lesson no homework done → no lesson GE 5 Tutorial 5.
Ch9. Inferences Concerning Proportions. Outline Estimation of Proportions Hypothesis concerning one Proportion Hypothesis concerning several proportions.
Experimental Design If a process is in statistical control but has poor capability it will often be necessary to reduce variability. Experimental design.
Section 10.1 Confidence Intervals
Elementary statistics for foresters Lecture 5 Socrates/Erasmus WAU Spring semester 2005/2006.
Chapter 8 Parameter Estimates and Hypothesis Testing.
KNR 445 Statistics t-tests Slide 1 Introduction to Hypothesis Testing The z-test.
Making Decisions about a Population Mean with Confidence Lecture 33 Sections 10.1 – 10.2 Fri, Mar 30, 2007.
Introduction to Hypothesis Testing: the z test. Testing a hypothesis about SAT Scores (p210) Standard error of the mean Normal curve Finding Boundaries.
Slide 21-1 Copyright © 2004 Pearson Education, Inc.
G544 – Practical project SELF REPORT. Revision  Socrative quiz  In pairs – answer each question.  We will then discuss each answer given.
Business Statistics for Managerial Decision Farideh Dehkordi-Vakil.
The Scientific Method How to Solve just about anything Chemistry.
The Scientific Method: How to solve just about anything.
Don’t be wordy; mind your style! “The results that were taken from a sample of people go to show some results that tell us some facts about how women and.
2.16 A researcher with a sample of 50 individuals with similar education but differing amounts of training hypothesizes that hourly earnings, EARNINGS,
Who to Test  Population: Everyone who could possibly be in the study Entire School  Random Sample: Only the people we actually test  Random: Everyone.
Strategies for Essay Tests. Preparing for the test Know what is expected of you. What content will be covered? How many questions will be on the test?
Stat 100 Mar. 27. Work to Do Read Ch. 3 and Ch. 4.
Statistical Inference for the Mean Objectives: (Chapter 8&9, DeCoursey) -To understand the terms variance and standard error of a sample mean, Null Hypothesis,
Psychological Investigations: the final dash…... What do you need to know? Questionnaire How to improve the validity: Ask more precise questions Avoid.
Chapter 11: Categorical Data n Chi-square goodness of fit test allows us to examine a single distribution of a categorical variable in a population. n.
Practice You recently finished giving 5 Villanova students the MMPI paranoia measure. Determine if Villanova students’ paranoia score is significantly.
Psychology Investigations A handy guide to module 2542 Nicola Santamaria January 2001.
VALIDITY What is validity? What are the types of validity? How do you assess validity? How do you improve validity?
Critical Appraisal Course for Emergency Medicine Trainees Module 2 Statistics.
Slides to accompany Weathington, Cunningham & Pittenger (2010), Chapter 11: Between-Subjects Designs 1.
Research practical.
As in the books, not you personally!
Feedback on Psycho Exam
Qualitative and Quantitative Data
POM - 3 Predicting Density
Tests of significance: The basics
The Scientific Method: How to solve just about anything
Comparing Two Proportions
Comparing Two Proportions
The Scientific Method.
8th Grade Science Content Standard
7 Scientific Method 1. Choose a problem. (What do you want solve? Ask a question about it.) List the materials you will need, how much of each material.
8.2 Day I: Z-Tests for a Mean One Tailed Large Sample
8th Grade Science Content Standard
Presentation transcript:

Feedback on Psycho. Invest. 1.Give NUMBER and at least 2 other facts. 2.OPPORTUNITY sample: relate details to YOUR activity. 3.Full marks only if you apply to YOUR work: even refer to the content of your questionnaire to illustrate possible bias.

Observation 4. You need to start by stating WHAT you were observing. You need to provide enough information to enable someone to replicate your work. So what else do you need? Think outside the box! Answer who, what, where, when,how?(5 points) 5. Give plenty of detail. Don’t jump the gun and answer the next question! Try to think of something other than “more” or “somewhere else”. REMEMBER “MORE” DOESN’T NECESSARILY MEAN MORE VALID!!!!!

Observation 6.Being less conspicuous: more validity Different angle: more validity Videoing: more reliability 2 observers: can check for inter-rater reliability BUT don’t just write in this general way: focus on the specific results of YOUR study. REMEMBER THAT “MORE” DOESN’T NECESSARILY MEAN MORE VALID!!!!!

Activity C 7. COPY!! Read the question!!! 8. If you’re going to make a table, then make it a table!! Remember to specify the units The range is a measure of dispersion, not an average. You don’t need to comment on the table, as you weren’t asked to this time. 9(a) Say whether your null hypothesis was supported or rejected, but also explain the content of your work. 9(b) Refer to last presentation. You need to name the test, refer to calculated and critical values and mention levels of significance.

Activity D 10. Copy, but make it clear!! 11. Give plenty of detail. Be precise. Did people write down their estimate, or give it verbally? Again, have you given enough info. for your work to be replicated? 12. Give LOTS of detail. The mark scheme does say you can offer an alternative way of measuring the EXACT variable (no. of press ups estimated) or a more general one (estimated performance)