As said like the title, this question haunted me for a long time, I would usually use the phrase experimental data, but I have ever been told experiment data has the identical meaning when referring to the data which was obtained by doing some experiments, I am not sure which one is right and Does testing data have any different meaning than experimental data？
Learn English – experiment data vs experimental data vs testing data
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Related Solutions
Studybug does not seem to mean someone who gets the highest (or even high) grades.
Straight A student could work. In the A/B/C/D/F grading system, the highest possible grade is an A. So achieving an A would be achieving the highest grade.
However, if someone got an A, that does not mean that the person earned the highest scores on exams and assignments (in the class; among the other students, etc). For that, you could frame it in terms of class rank and say
at the top of one's/the class
: having among the highest grades in one's class
<He graduated at the top of his/the class.>
So if you have a friend and he in fact scored the highest marks, then you could say he was at the top of his class, or simply he was top of his class.
In terms of percentile, could say he scored in the 90th percentile, or simply he scored in the top 10 percent.
If you use of his class, this can be interpreted as his graduating class. So if it's not clear from context, then you might need to be specific and say he scored in the top 10 percent of his Algebra class, for example.
You can swap 90 for other numbers like 95, 99, and swap 10 with 5, 1, etc.
I might have taken the description given by OP a little too literally. In any case, if you are looking for words to describe someone who, broadly speaking, studies often and regularly gets good/high marks, then there are several options, but none seem to be exact translations. In this case, studybug and straight A student seem to work. You could also try:
nerd
an unstylish, unattractive, or socially inept person; especially : one slavishly devoted to intellectual or academic pursuits <computer nerds>This does not necessarily mean the person gets high (the highest) marks. Since nerd could be considered "bad", you can use nerdy to soften it. She's so nerdy. She loves reading his math books. (It's kinda cute, in my opinion.)
bookworm
: a person unusually devoted to reading and studyThis does not necessarily mean the person gets high marks, but it does mean the person studies a lot.
overachiever
a person who does more than they are expected to do or who is more successful than others:In an academic setting, such a person regularly goes above and beyond what is expected and gets high marks because of it.
Here are two references:
There are two English verbs whose infinitive is "to cost", their meaning is closely related, and they conjugate almost exactly the same, but not quite.
The most commonly used one is as you've indicated, the verb used to indicate cost or price; the subject is the object in question and the object is the price. Sometimes it's bitransitive, taking two objects - "it costs me two pounds to take the bus"; "me" and "two pounds" being the two objects. There's also the idiomatic usage where there's only one object, and that's the person (or whatever) that will have to pay the price, as in "it'll cost you", meaning that there will be a significant cost to doing something.
Most often, this sense of "cost" is used in the third person, as you're generally referring to a non-person, though sometimes you talk about the cost of a person. In that case, the present tense is I cost, you cost, it costs, we cost, they cost. Both the simple past and past participle are formed irregularly, and are 'cost' regardless of number and person. "It has cost" and "it cost" are essentially identical in meaning. Use of the progressive aspect in this sense is also possible, such as "three meals, costing a total of £100".
The other verb "to cost" means, I would say, "to assign or determine cost". This one forms past tenses more regularly, and generally behaves more as a simpler sort of verb describing an action a person would take - because it is an action people take. "The building work was costed at £10,000". "I asked him to cost the proposal".
Sometimes it's normal in a dialect to conjugate the first sort the same as the second, and sometimes people just speak in a way that's technically incorrect. But if you want to stick to standard English grammar, what I've described above is how it works.
Best Answer
The usual expression, if the data comes form an experiment, is experimental data. Experimental here is an adjective; as such, it has three main meanings, and the one we are interested in is "of, for, from, or related to an experiment". The others include "serving as an experiment", which can lead to confusion in the phrase experimental equipment, but we shan't worry about that now.
Experiment data makes sense, seeing experiment as an attributive noun, but I've never come across that in British English, nor American English (though I have had less exposure to that). It sounds unnatural to me. However, study data, that produced in a study (used more often in social science and medical research, in my experience), follows that pattern.
A comment has noted the alternative empirical data. In modern English, this means data that comes from real-world observations rather than that produced in a deliberate experiment. In an experiment, the experimenter controls conditions. In an empirical study, they record the conditions and the results, but do not control them. In archaic usage, experiment referred to both, and to more besides. To know something experimentally meant to know it from experience.
Finally, you ask about testing data. This is equivalent to experimental data, but produced in a test rather than an experiment. A test in this case is where you are testing some process, equipment or otherwise to make sure it behaves as expected/intended. The closely related test data is the data used in such a test, often used in software systems, such as for regression testing, making sure that a new version of software behaves the same as the old version on the same data.