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
2023-11-27
14
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] 【T3】
选项
答案
vary
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3225029.html
相关试题推荐
PlanningaWritingLessonI.Whatisagenre—variousinkind—commonfeatures
PlanningaWritingLessonI.Whatisagenre—variousinkind—commonfeatures
PlanningaWritingLessonI.Whatisagenre—variousinkind—commonfeatures
PlanningaWritingLessonI.Whatisagenre—variousinkind—commonfeatures
PlanningaWritingLessonI.Whatisagenre—variousinkind—commonfeatures
PlanningaWritingLessonI.Whatisagenre—variousinkind—commonfeatures
PlanningaWritingLessonI.Whatisagenre—variousinkind—commonfeatures
[originaltext]Now,listentoPartTwooftheinterview.W:Right.Researchers
[originaltext]Now,listentoPartTwooftheinterview.W:Right.Researchers
[originaltext]Now,listentoPartTwooftheinterview.W:Right.Researchers
随机试题
________________(在此危难之中)thepeopleofAmericastillkepttheirusualgoodsense
Chineseeducationsystemofemphasizingscoresisqueriedbythepublic.Loo
ThisisthesecondtimethatJohn______inhisfinalexam.A、hasfailedB、fails
考核电能质量的主要技术指标是()。A.电流、频率、波形 B.电压、电流、频
施工成本控制可分为()。A.事先控制 B.事中控制(过程控制) C.事后控
患者胸膈烦热,面赤唇焦,烦躁口渴,口舌生疮,咽痛吐衄,大便秘结,小便短黄,舌红苔
采用全站仪进行水平角观测时,其产生误差影响的主要来源有( )。A.对中 B.
中国的民政部、人力资源和社会保障部都属于()。A.社会福利与其他公共行政职能混
杨某为全家人投保了人身保险同时也为全部家庭财产投保了财产险,在两份保险合同的存续
普适泰属于植物制剂,用于治疗前列腺增生;直立性低血压是使用特拉唑嗪最为严重的不良
最新回复
(
0
)