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
23
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] 【T5】
选项
答案
at random times
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3225031.html
相关试题推荐
ChoosingaForeignLanguagetoStudyItisnoteasytochooseaforeignlanguage
ChoosingaForeignLanguagetoStudyItisnoteasytochooseaforeignlanguage
ChoosingaForeignLanguagetoStudyItisnoteasytochooseaforeignlanguage
ChoosingaForeignLanguagetoStudyItisnoteasytochooseaforeignlanguage
ChoosingaForeignLanguagetoStudyItisnoteasytochooseaforeignlanguage
ChoosingaForeignLanguagetoStudyItisnoteasytochooseaforeignlanguage
ChoosingaForeignLanguagetoStudyItisnoteasytochooseaforeignlanguage
Losingweightiseasierwhenthereismoneyontheline,U.S.researcherss
Losingweightiseasierwhenthereismoneyontheline,U.S.researcherss
Losingweightiseasierwhenthereismoneyontheline,U.S.researcherss
随机试题
PassageOneTheteachingofhistoryshouldn’tbeneglectedinscientificeducatio
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
LatinAmericanandChineseofficialshaveopenedtwodaysoftalksontradea
Youarerequiredtowritealettercontainingarequestforafavoraccordingto
[originaltext]W:ABCRestaurant,canIhelpyou?M:Hi,couldyoutellmewhat
英国十分重视工程风险评估,每个工地都要填写相应等风险评估表格,并有工地安全评估说
对病例对照研究资料进行分层分析的目的是A.控制选择偏倚 B.提高资料的利用率
政府采用财政补贴、税收、金融、采购、工资、就业等经济手段,通过影响各地区和企业的
并联管道1、2.如图20所示。两管的直径相同,沿程阻力系数相同,长度L2=3L1
最新回复
(
0
)