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①一組數(shù)據(jù)中的任何兩個相鄰數(shù)據(jù)之比接近與常數(shù),既數(shù)據(jù)按一定比例關(guān)系變化。至少是單峰對稱的分布 ③必須是成對數(shù)據(jù) .而且每對數(shù)據(jù)之間是相互獨立的 . ④兩鐘變量之間呈線性關(guān)系 . ⑤樣本容量 n≥ 30,計算出的積差相關(guān)系數(shù)才具備有效的意義 .⑥要排除共變因素的影響。 答:①內(nèi)容 ②施測 ③測驗分數(shù)的組合 ④常模 。 答:前者是由一個研究者和一個被訪者所構(gòu)成的訪談,后者是由一至三名研究者和兩名以上的被訪者所構(gòu)成的訪談。 答:分為取樣,設(shè)計調(diào)查發(fā)與試測,計劃及調(diào)查訪問程序。 。 答:評判記錄是根據(jù)已確定的分析維度(類目)和分析單位對樣本中的信息做分類記錄,登記下一個分析單位中分析維度是否存在和出現(xiàn)的頻率,為計數(shù)方便,分析維度和分析單位可排列成表格形式,編上序號。 答:文獻研究法,需要從浩如煙海的文獻中找出合適的材料,需要從搜集到資料中挑出珍品和高質(zhì)量的文獻,需要用這些文獻的記載去恢復(fù)去的事實的真相,確實并非易事,研究著沒有對資料的熟悉,沒有扎實的知識基礎(chǔ)和文字功底,沒有一絲不茍的精神,沒有鍥而不舍的恒心沒有清醒的歷史頭腦就搞不出有分量的研究成果。 不同點:內(nèi)容分析法將非動量的文獻材料轉(zhuǎn)化為定量的數(shù)據(jù)。 答:前者適合以下情況,訪問某人特定個體的情況,了解帶有隱私性,隱蔽性 和個人性的情況,作深入的,解部麻雀式的研究。 : 答:前者是雙方面對面地坐在一起交談的方式。位置的選擇包括兩個因素:方位和距離。將這些數(shù)據(jù)轉(zhuǎn)換的等級變量后,可采用等級相關(guān)法。 答:算術(shù)平均數(shù)的優(yōu)點:①反應(yīng)靈敏 ②嚴密確定 ③簡明易懂,計算方便 ④適合代數(shù)運算⑤受抽樣變動的確影響較小。 答:①建立假設(shè),選擇單測或雙測檢驗方式。 7.單測檢驗與雙測檢驗的區(qū)別在哪里? 答:單測檢驗與雙測檢驗的區(qū)別:它們的概念,和應(yīng)用條件各不同,答測檢驗的應(yīng)用條件,凡是檢驗大于、小于、高于、低與、優(yōu)于、劣與等有肯定性大小關(guān)系的假設(shè)檢驗問題,假設(shè)檢驗寫作: H1: M1M2 雙測檢驗的應(yīng)用條件:凡 理論上不能確定有兩個總體一個一定比另一個大或小的假設(shè)檢驗,一般假設(shè)檢驗寫作 H1:M1≠ M2 8.簡述方差及方差差異的顯著性檢驗的區(qū)別。若一位學(xué)生的平時作業(yè)成績?yōu)?X1=90分,期中測驗成績?yōu)?X2= 84 分,期末考試成績?yōu)?X3= 86分,那么該學(xué)生的綜合考試成績是多少? xw = x1+ x2+ x3 + + = x1+ + = 90+ 84+ 86 = 18+ + 43 = (分 ) 在某中學(xué)初三年級學(xué)生中,隨機抽取 30名樣本,測得他們的某項考試分數(shù)如表 。 表 9。結(jié)果贊成方案者 38人,反對者 21人,不表態(tài)者 25人。 期初測驗成績 71 85 65 76 79 78 68 74 68 90 78 67 64 72 80 期末測驗成績 75 83 66 78 84 72 69 77 67 92 84 68 65 72 82 ① x1y1:,+,,,,+, ② n+=3,n=11 N=14(0不計 ) 如果差異不顯著,理論上講 14個差值 n+,n應(yīng)各占一半 . ③ E=nn/2=3+√ 4/2=187 √ n/2 √ 14/2 /E/ ρ 所以差異顯著。每位學(xué)員可以依據(jù)個人的情況和風格,進行靈活選擇與設(shè)置,組成自己的豐富多彩的檔案袋。t rain much and the weather is cool. At press time, a weeklong package from Shanghai or Guangzhou to Bali was a little more than 3,000 yuan ($480) on Ctrip39。s artistic innovation before the advent of the Inter period. The fourth stage is featured with the spread of the Inter and the other puterized means of art innovation. The handdrawn children39。s confidence in and mitment to a strong eurozone offers EU leaders the necessary support to look at the Greek crisis from a broader and longer perspective. When Li said that China will not only consider a ChinaEU investment platform to back European Commission President JeanClaude Juncker39。s haven, with no less than 4,000 rare birds and animals representing 200 species. With tropical forest covering over 90 percent of its area, the garden offers beautiful views of a wide range of tropical plants, flowers and fruit trees. The scenic spot about 25 kilometers from the center of Haikou offers a drivethru safari tour where you can get up close with elephants, lions and bears. The Safari on Foot area features walking trails where visitors can see the rest of the animals, including hippos and monkeys, and feed them for a small fee. Visitors also can see what happens when you breed a lion and a tiger. Two unique attractions are rare hybrids: a liger, the offspring of a mallion and a female tiger and a tigon, which is created by a female lion and a male tiger. As a teaching center of the National Popular Science Education program, the park also serves as a second classroom for students to learn about wildlife and plants. Since it was established in 1995, it has received more than one million student visitors. At a crucial moment when pessimism has brought the Greek crisis to such a head that the country is closer to a default on its debt repayments than ever, Li offered a spark of enthusiasm to restart the stalled talks by calling on Greece and its creditors to reach a lastminute deal that will allow Greece to remain in the eurozone. Given the escalation of the country39。t miss. Local cuisines feature many spices, including peppers and cloves, and coconut pulp. Fried rice, dirty duck and roast suckling pig are remended. Children39。s Phuket island and the Maldives archipelago. Encouraged by growth in Chinese travelers to Indonesia, the government in Jakarta has recently relaxed its visa policy. Since June 10, Chinese tourists can enter Indonesia through nine appointed locations, including the Soekarno Hatta Internatio nal Airport in Jakarta, the Ngurah Rai International Airport in Bali and the Kuala Namu International Airport in Medan, by just getting their passports stamped on arrival. Officially, it is called the free visa scheme. The new policy also means Chinese tourists can save $35 on visa fees, which will likely make trips to Indonesia more alluring. While such an arrangement allows Chinese visitors to stay up to 30 days for the purpose of traveling, those seeking extensions will need to get paid visas from that country39。 輔導(dǎo)前 68 68 83 77 62 71 60 70 64 82 78 55 61 69 輔導(dǎo)后 84 75 82 81 71 71 68 66 89 81 80 58 63 70 解:① XiYi:,+,,, ② n+ =2, n =11,N=13(0不計 ) ③ r= n+ =2 ④ E=(r+)N/2=(2+) = √ N /2 √ 13 /2 ∴差異不顯著 有 24對被試按匹配組設(shè)計,分別進行集中識字和分散識字教學(xué)。 某縣有甲、乙兩所規(guī)范化學(xué)校,教育主管部門為了檢驗兩校初中二年級學(xué)生的數(shù)學(xué)水平,從甲、乙兩校的初二學(xué)生中,分別隨機抽取 55和 45人(各占全校初二學(xué)生總數(shù)的 25%),進行統(tǒng)一試題的數(shù)學(xué)測驗?,F(xiàn)從中隨機抽取 40 人進行新教法實驗,實驗結(jié)束后其測驗的平均成績?yōu)?82分,標準差為 。 表 30名樣本的測驗分數(shù) 56 59 60 62 63 68 70 72 73 73 74 74 75 76 77 77 78 78 80 81 82 83 84 86 88 89 89 94 96 97 x = 1 ( n ) = 56+ 59+ 60+ 62+ 63+??+ 9