In Questions Determine Whether the Binary Relation Is:
(1) Reflexive $$\text { The relation } R \text { on } \mathcal { R } \text { where } a R b \text { means } a - b \in \mathcal { Z } \text {. }$$

question 16

Short Answer

In questions determine whether the binary relation is:
(1) reflexive, (2) symmetric, (3) antisymmetric, (4) transitive.
- $$\text { The relation } R \text { on } \mathcal { R } \text { where } a R b \text { means } a - b \in \mathcal { Z } \text {. }$$

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Definitions:

"Neutral" Toys

"Neutral" Toys are toys designed without gender stereotypes in mind, encouraging play and learning experiences for all children, regardless of their gender.

Cross-sectional

A research design that collects data from different individuals of different ages or developmental stages at a single point in time.

Longitudinal

A type of study or research design that follows the same subjects over a period of time to observe changes or developments.

Experimental

Pertaining to a method of inquiry in science and psychology involving controlled testing of variables to study effects or outcomes.