Slide 11 Study question: distribution of IQ The IQ has an approximately normal distribution, with a mean of 100 and a standard deviation of 15. If 1000 people are drawn at…

Slide 11 Your lecturer and course convener Colin Gray Room S16 William Guild Building E-mail address: [email protected]@abdn.ac.uk Telephone: (27) 2233 Slide 2 2 THE…

Slide 11 Lecture 7 THE NORMAL AND STANDARD NORMAL DISTRIBUTIONS Slide 2 2 Populations and samples When we gather data, the POPULATION is the reference set containing ALL…

Slide 11 Lecture 2 ANALYSIS OF VARIANCE: AN INTRODUCTION Slide 2 2 Between subjects experiments The caffeine experiment was of between subjects design, that is, each participant…

Slide 11 A revision example Slide 2 2 Solution Statement A looks reasonable; but read the others to make sure. The experimenter knows what the experiment is about. B is false.…

Slide 1THE MEASUREMENT OF INDIVIDUAL DIFFERENCES Slide 2 ABOUT THE COURSE The course consists of FOUR lectures. There will be ONE question on this course in the degree examination.…

Slide 11 Multiple-choice example Slide 2 2 Solution The typical level of score achieved is the AVERAGE or CENTRAL TENDENCY. (Some authorities prefer the term LEVEL.) Statement…

Slide 11 Multiple-choice example Slide 2 2 Solution The mean and median would very RARELY have EXACTLY the same value. The median is indeed the middle score (the 50 th percentile).…

Slide 11 Lecture 7 POWER IN STATISTICAL TESTING Slide 2 2 The caffeine experiment In the Caffeine experiment, there were two groups: 1. the CAFFEINE group; 2. the PLACEBO…

Slide 1Designing Experiments The Caffeine Experiment Slide 2 Designing Samples Population vs Sample Is a part of the population that we actually examine in order to gather…