This is the 593rd most frequent Japanese word.
同様
"Same" or "similar."
Here, '同様に' functions as an adverb to express that the effect of one method is comparable to another method being discussed.
その方法を使用するのが同様に効果的です。
Using that method is similarly effective.
In this context, '同様の' acts as an adjective modifying '考え' (ideas), indicating that they are akin or comparable to other ideas already mentioned.
彼女の意見も同様の考えを含んでいる。
Her opinion also contains similar ideas.
In this sentence, '同様に' is used as an adverb to indicate that the subject (he) is doing something in the same manner as another implicitly mentioned person or group.