# Differention [math]

Classified in Psychology and Sociology

Written at on English with a size of 2.82 KB.

What does p < .05 indicate? The result Is significant, we can reject the null hypothesis, we can accept the Alternative hypothesis

Two types of t-tests Independent samples t-**test**:Group of
Participants divided into two sub-groups (mutually exclusive) *Asking both groups exactly the same
Question and compare answers from the two **independent** groups.

Paired **sample** t-test (dependent-samples
T-test)

Same **group** of participants (without
Dividing them into sub-groups)

-Asking a pair of two comparable questions
(e.G. Both asking about time spent on television, both asking about exam
Performance etc.)

One-Way Anova: IV: **categorical** **variable** with more than two groups DV: continious

ex: IV: students major with three levels (physics, **math**, chemistry) DV: iq score

Two-Way Anova IV: two IVS that are or can be transformed into categorical variables DV: continuos variable

Correlation: when you want to examine the degree and direction of relationship between two ore more than two continuous variables

Simple linear regression when one continuous variable as Your independent variable + one continuous variable as your dependent variable

Multiple linear regression (1) When DV is continuous Variable, more than two continuous IVs. (2) When DV is continuous variable, IVs are Categorical variables. ** (not required)

One-sample Chi-square test (goodness of fit test)

Only one categorical variable. And
You want to see whether or not the distribution across different levels is
Balanced.Nonparametric test: the branch of inferential
Statistics that is appropriate when the level of measurement is nominal or
Ordinal and when data are not normally distributed.Null hypothesis: expected and observed
Frequencies are the same/You can hypothesize that expected
Frequencies among groups are equal; or you can hypothesize they are not equal.