'Grouping variable' diaporamas de présentation

Global Correlations: What You Don't Know Will Hurt You

Ziad S Saad, PhD SSCC / NIMH & NINDS / NIH / DHHS / USA / EARTH. Global Correlations: What You Don't Know Will Hurt You. BOLD signal fluctuations during undirected brain activity. Resting state. BOLD signal fluctuations during undirected brain activity

504 views • 50 slides

Global Correlations: What You Don't Know Will Hurt You

Ziad S Saad, PhD SSCC / NIMH & NINDS / NIH / DHHS / USA / EARTH. Global Correlations: What You Don't Know Will Hurt You. BOLD signal fluctuations during undirected brain activity. Resting state. BOLD signal fluctuations during undirected brain activity

580 views • 49 slides

Independent Samples T-Test Practice Problem 1a

Independent Samples T-Test Practice Problem 1a.

1.11k views • 32 slides

One-Way Analysis of Variance

1. One-Way Analysis of Variance. Comparing means of more than 2 independent samples. Why not multiple t-tests?. 1. # comparisons = k(k-1)/2, where k is the # of groups. In other words, when there are many more than 2 groups, the number of comparisons is large

383 views • 22 slides

T-Test

T-Test. The purpose of t test (Gosset, 1908) is to compare two means. It assesses whether two means are statistically different. It can assess the difference between two groups or two variables. Limitations.

1.69k views • 15 slides

Making Inferences About the Population and Testing Hypotheses

Making Inferences About the Population and Testing Hypotheses. Null Hypothesis. Statement about a status quo Conservative statement No difference Any change likely due to random error Purpose: provide an opportunity to nullify it -- or prove it false We want to reject the null.

254 views • 14 slides

Creating a simple bar chart with error bars in SPSS

989 views • 8 slides