首页
登录
职称英语
Time sampling means that researchers choose various time intervals for their
Time sampling means that researchers choose various time intervals for their
游客
2023-12-02
27
管理
问题
Time sampling means that researchers choose various time intervals for their observation. Intervals may be selected systematically or【T1】______. Suppose we want to observe students’ classroom behaviour. Then in systematic time sampling, our observations might be made during five 20- minute periods,【T2】______. The first observation period could begin at 9 am, the second at 10 am and so forth. However, in random sampling, these five 20-minute periods may be distributed randomly over the course of the day. That is to say, intervals between observation periods could 【T3】______—some longer others shorter. One point I’d like to make is systematic and random time sampling are【T4】______. They are often combined in studies. For example, while observation intervals are scheduled systematically, observations within an interval are made 【T5】______. That means the researcher might decide to observe only during 【T6】______that are randomly distributed within each 20-minute period. [br] 【T2】
选项
答案
beginning every hour
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3238339.html
相关试题推荐
Thereisnotmuchtochoosebetweenmen.Theyareallahotchpotchofgreatness
Losingweightiseasierwhenthereismoneyontheline,U.S.researcherss
Losingweightiseasierwhenthereismoneyontheline,U.S.researcherss
Losingweightiseasierwhenthereismoneyontheline,U.S.researcherss
ResearchersattheUniversityofColoradoareinvestigatingaseriesofindicato
ArecentstudybyGermanresearcherspresentsthepossibilityof"carbonfa
ArecentstudybyGermanresearcherspresentsthepossibilityof"carbonfa
Faithschoolsandacademiesshouldbestrippedoftheirpowertochoosepupi
Faithschoolsandacademiesshouldbestrippedoftheirpowertochoosepupi
[originaltext]Now,listentoPartTwooftheinterview.W:Right.Researchers
随机试题
Whatnumbershouldreplacethequestionmark?[img]2018m11x/ct_eyyjscm_eyyjsciq_
Inourclass,whenthebellrangandtheteacherclosedhisbook,itwasa_____
[originaltext]WhenIwasgrowingupinAmerica,Iwasashamedofmymother’
女,27岁,产后半月,右乳房胀痛伴高热38.5℃,体检:右乳房外上象限明显红肿,
强心苷中毒最常见的早期症状是()A.房室传导阻滞 B.Q-T间期缩短
患者,男性,32岁,车祸造成左胫骨骨折,手法复位行石膏固定术。护士向患者介绍其功
某果品公司急需将一批不易存放的水果从A市运到B市销售。现有四家运输公司可供选择,
现有两只证券投资基金,其中基金A高度重视流动性,必须保留一定的现金资产,基金B的
下列各项中,确定已记录金额与预期值之间可接受的差异额的考虑因素有()。A.重要
按照《中华人民共和国会计法》的规定,一般会计人员办理交接手续,由其他会计人员监交
最新回复
(
0
)