Answer: I'll give you quite a few.
Explanation:
Convenience sampling: (strengths) least expensive, least time consuming too. Most convenient.
(Weaknesses) selection bias. Not recommend by casual research.
Judgment sampling: (strengths) low cost, not time wasting. Convenient, ideal for exploratory research.
(Weaknesses) does not allow generalized subjective.
Snowball sampling: (strengths) can estimate rare characteristics.
(Weaknesses) time consuming.
<span>Decline in grooming, sudden mood changes, and extreme changes in sleep or appetite, bloodshot eyes, secretive behaviours and nosebleeds, Unusual smells on clothes or breath,</span>
I believe the answer is C because it has multiple answers in one, and the most effective early childhood curriculum can have more than one solution.
The answer is D (8 to 12)
While doing upper-body exercise routine, fatigue of target muscles can be safely achieved within<span> the short time-frame of about 1.5 minutes (the time-frame for anaerobic pathways) by simply performing 8 to 12 </span>repetitions<span> at a moderate movement speed.</span>