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
53
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
Whydidn’tthegirlgotothemovies?[originaltext]M:Doyouwanttoseeafilm
ForAmericans,timeismoney.Theysay,"Youonlygetsomuchtimeinthisl
Weweremade(work)______allnight.towork
Thecompanyisofferingafivepercentdiscounttocustomersasaway______its
AGuidetoJobHuntingDevelopingyourc
Halfacenturyago,mostpeoplelivedin【B1】______areas.However,according
()是利用IP网络技术构建的、面向企业内部的专用计算机网络。A.Interne
运用收益法对不动产进行评估,需满足的前提条件有()。A.被评估不动产的市场参照
男性,38岁,半月来上腹不适、疼痛,反酸,2小时前上腹疼加重,继而呕血约150m
影响砂浆稠度的因素有( )。A.胶凝材料种类 B.使用环境温度 C.用水量
最新回复
(
0
)