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
65
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:http://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
Allsocialunitsdevelopaculture.Evenintwo-personrelationshipsacultu
(1)AdoptedatbirthbyafamilyofJehovah’sWitnesses,Iwasaskedfroman
(1)DetroitseemstobewhereWallStreetmeetsMainStreet.Tightcreditis
NeverbelieveTom,whowassucha______character.A、suspiciousB、graciousC、cons
()交流活动()语法重点[br]()语音练习()角色扮演I、F
ItisamiraclethatNewYorkworksatall.Thewholethingisunbelievable.
[originaltext]M:Whereareyoulivingnow,Mary?W:WearelivingonMainStree
下列描述符合咀嚼黏膜的特征的是A.表层无角化 B.结缔组织乳头短 C.粒层不
A.夜间咳甚 B.咳声不扬 C.咳声低微 D.咳声重浊 E.天亮咳甚肾水
按照出让合同约定进行投资开发,属于房屋建设工程的,必须完成开发投资总额的()以上
最新回复
(
0
)