首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Time sampling means that researchers choose various time intervals for their observation. Intervals may be selected systematical
Time sampling means that researchers choose various time intervals for their observation. Intervals may be selected systematical
admin
2017-03-07
31
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.
【T4】
选项
答案
not always used in isolation
解析
转载请注明原文地址:https://kaotiyun.com/show/E1zK777K
0
专业英语八级
相关试题推荐
Cross-culturalLivingInadaptingtoanewculture,expecttogothroughthreedistinctstages.Iwillgiveyousomeideas
EuropeanimmigrantstoColonialAmericabroughtwiththemtheirculture,traditionsandphilosophyabouteducation.Muchofthe
WithinEUprimaryeducation,aclearmajorityofpupilschoosetostudyEnglishlikeaforeignlanguage.Indeed,learningEnglis
Stressisverycloselyrelatedtoourhealth,especiallypsychologicalhealth.Thoughwecannottotallyescapestress,thereare
Schoolsshouldaskstudentstohelpevaluatetheirteachers.Doyouagreeordisagree?Writeacompositionofabout400words,u
Recently,thereisacommonphenomenoninthetier-onecitiesthatagreatnumberofwhite-collarworkerschoosetoflockhomeo
ConsiderationsofLearning-centeredTeachingI.IntroductionA.goalofmostcourses:toenhancestudents’understanding—differ
Sincethedawnofe-mail,usingsarcasmindigitalcommunicationhascreatedstrifeandconfusionbetweenfriends,colleaguesan
Notlongago,TedGupopenedabatteredoldsuitcasefromhismothersatticanddiscoveredafamilysecret.Insidewasathick
A、Theguestscancookforthemselves.B、TheguestscansurftheInternet.C、Theguestscanparktheircars.D、Theguestscanhav
随机试题
InmylonglifeIhaveseenmanychangesinourhabitsandcustomsandconditionsingeneral.Ithinkthatyoumightbeinterest
A.腹部专业用超声诊断仪B.心脏专业用超声诊断仪C.M型超声心动图D.B型超声E.3D型超声侧重心功能测定
筒箭毒碱的骨骼肌松弛机制是
某男,30岁。喘促气急,鼻煽息粗,咯黄痰,口渴,大便秘结。应首选麻黄配伍
本题为案例分析题,要求分析合理,结论正确;有计算要求的,应简要写出计算过程。1.某工程项目,建设单位与施工总承包单位按《建设工程施工合同(示范文本)》签订了施工承包合同,并委托某监理公司承担施工阶段的监理任务。施工总承包单位将桩基工程分包给一家专业施工
下列有关审计业务的三方关系人的说法中,错误的有()。
如果你有一盒钢笔水,你会:
Theresultsofthetestshowthat______.Thepassagementionsthatmanypeoplebelievethatifyoudon’teatbreakfast,youwil
A.Consultant1.MajorinManagementorsimilarfields.2.MasterDegree.3.Computerliteracy.4.Fluencyinbothw
Untillastspring,NiaParkerandtheotherkidsinherneighborhoodcommutedtoschoolonBus59.Butasfuelrose,theschool
最新回复
(
0
)