Replication of a research study is most likely to be facilitated by

Replication of a research study is most likely to be facilitated by "operational definitions".

An operational definition is the verbalization of operationalization utilized in characterizing the terms of a procedure expected to decide the idea of a thing or phenomenon. For instance a person who is researching estimating bliss and dejection in understudies chooses to utilize a ten-question satisfaction scale to quantify inspirational standpoint in her subjects. At the end of the day, her operational definition of bliss for this situation is a given subject's score on the test.

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.