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            [parent_category] => Array
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                    [slug] => history-social-studies
                    [name] => History and Social Studies
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            [subcategories] => Array
                (
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                        (
                            [name] => Psychology
                            [slug] => psychology
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                )

        )

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            [parent_category] => Array
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                    [slug] => math
                    [name] => Math
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                            [slug] => act-math
                            [id] => 1741
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                            [slug] => algebra-1
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                            [slug] => algebra-2
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                            [slug] => calculus
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                            [name] => Elementary Math
                            [slug] => elementary-math
                            [id] => 1743
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                        (
                            [name] => Geometry
                            [slug] => geometry
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                        (
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                            [slug] => prealgebra
                            [id] => 1724
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                        (
                            [name] => Precalculus
                            [slug] => precalculus
                            [id] => 1728
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                        (
                            [name] => SAT Math
                            [slug] => sat-math
                            [id] => 1740
                        )

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                        (
                            [name] => Trigonometry
                            [slug] => trigonometry
                            [id] => 1729
                        )

                )

        )

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            [parent_category] => Array
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                    [slug] => science
                    [name] => Science
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            [subcategories] => Array
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                        (
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                            [slug] => biology
                            [id] => 1746
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                    [1] => Array
                        (
                            [name] => Chemistry
                            [slug] => chemistry
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                        (
                            [name] => Genetics
                            [slug] => genetics
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                        (
                            [name] => Microbiology
                            [slug] => microbiology
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                            [slug] => organic-chemistry
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            [parent_category] => Array
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                    [slug] => test-prep-exams
                    [name] => Test Prep and Exams
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            [subcategories] => Array
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                        (
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                            [slug] => ged
                            [id] => 1866
                        )

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)