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# Study Guides for Michael

Quantitative Methods in Psychology

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##### PSYC2009 Quiz: PSYC2009 - Quantitative Methods in Psychology - 11: Comparing Variances and ANOVA

Comparing Variances and ANOVA Comparing variances: F-test/F-statistic o Ratio that compares sample variances with the corresponding population variances: o 2...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Linear Regression, Null Hypothesis, Linear Model

Regression Can look at relationship between two quantitative variables by making a scatterplot Making the scatterplot o Plot values for each observation on graph Horizontal axis: represents...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Richter Magnitude Scale, Continuous Or Discrete Variable, Central Tendency

Descriptive Statistics, Experimental Design and Sampling/Graph Displays Variables: Discrete: can take certain values but not others Continuous: Can (theoretically) take any values over their "range" Measures of...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Effect Size, Type I And Type Ii Errors, Null Hypothesis

Effect Size and Power Statistical power: Likelihood of detecting an effect/significant difference Higher power decreases the likelihood of committing a type II error Determining power of a study: 1. Determine C...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Statistical Inference, Sampling Frame, Random Assignment

Sampling Sampling questions o What kind of sample? o How to select sample to avoid bias? o How big should the sample be? o How close Is your estimate likely to be to the popul...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Statistical Inference, Autosuggestion, Statistical Parameter

Inferential Statistics Aims: Infer some characteristic of a population/phenomenon on the basis of a sample evidence Most studies in human sciences involve generalisations and inferences beyond the people ...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Coin Flipping, Bias Of An Estimator, Statistic

Distributions Probability distributions Provides the categories (or scores) of a variable along with the probability that each occurs Often shown as a graph (or table) Cumulative probability: score is the...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Type I And Type Ii Errors, Confidence Interval, Null Hypothesis

Confidence Intervals and Significance Tests Parameter estimation for a mean Any sample mean (X) an be related to the population mean it is generated from as a combination of the population mean ( and some samp...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Observational Error, Empiricism, Rationality

Uncertainty 1. Dealing with ignorance and uncertainty o Sometimes good sometimes bad o What is good about uncertainty? - if there is no uncertainty then you have no future and you have n...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Conditional Probability, Deductive Reasoning, Sensitivity And Specificity

Probability Priori probability is a probability that is derived purely by deductive reasoning. Will always take a value between 0 and 1. can be expressed as a fraction, decimal, or a percentage Basic proba...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Bonferroni Correction, Standard Deviation, Effect Size

Comparing Multiple Means Compare means between 2 or more groups To reduce the likelihood of a type 1 error, a Bonferroni correction is used when comparing means A Between-groups t-statistic is used an...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Quiz Guide: Empiricism

Introduction Is psychology a humanities or a science? o Essentially, it depends on who you ask o Some universities offer psychology courses under a college of arts/social scie...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Final Guide: Level Of Measurement, Bar Chart, Cumulative Frequency Analysis Premium

Measurement, Variables and Data Construct a concept, usually a characteristic or property, that underlies measurement. Indicator constructs are indicators of another construct if knowing about one provides information ab...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Final Guide: Decision Theory, Statistical Inference, Human Science Premium

Introduction to Probability Why we need to know about probability? 1. Inferential statistics involves probabilities. 2. Assessments of risk are based on probabilities of events. Key concept: conditional probability, for in...

Psychology
PSYC2009
Michael
##### PSYC2009 Study Guide - Final Guide: Confidence Interval, Halfwidth And Fullwidth Forms, Sampling Distribution Premium

Introduction to Confidence Intervals Confidence interval is a range of values for a statistic that contains a specified percentage of the sampling distribution of that statistic. Confidence level the specified percentage...

Psychology
PSYC2009
Michael
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